Built 2026-10-16 (16 October 2026)

Washington Weather Records (USC00138688)

Record envelope, standing records and threshold days for Washington (USC00138688), Iowa, United States, with 134 years of record.

Key Facts for Washington

  • Washington (USC00138688) is a weather station in Iowa, United States at 41.28 latitude and -91.71 longitude, 209 m (687 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Washington still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Washington set a daily record precipitation of 29.2 mm (1.1 in) on 1 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Iowa, United States, 41.28 latitude, -91.71 longitude.
  • Elevation: 209 m (687 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

5 days at or beyond a record
Daily record high and record low at Washington, with 2026 drawn through them The band shows the record high and record low for each calendar day at Washington. The lines show the 2026 daily maximum and minimum. 5 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Washington. The lines show the 2026 daily maximum and minimum. 5 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Washington, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-35.6 C (-32.1 F)15.6 C (60.1 F)-25.0 C (-13.0 F)
Feb26.7 C (80.1 F)-33.9 C (-29.0 F)21.1 C (70.0 F)-16.7 C (1.9 F)
Mar31.7 C (89.1 F)-26.7 C (-16.1 F)31.7 C (89.1 F)-16.1 C (3.0 F)
Apr34.4 C (93.9 F)-13.9 C (7.0 F)28.9 C (84.0 F)0.0 C (32.0 F)
May39.4 C (102.9 F)-5.0 C (23.0 F)32.8 C (91.0 F)15.0 C (59.0 F)
Jun41.7 C (107.1 F)1.7 C (35.1 F)32.8 C (91.0 F)8.9 C (48.0 F)
Jul45.0 C (113.0 F)7.2 C (45.0 F)35.0 C (95.0 F)10.6 C (51.1 F)
Aug42.8 C (109.0 F)3.9 C (39.0 F)32.2 C (90.0 F)10.6 C (51.1 F)
Sep38.9 C (102.0 F)-5.0 C (23.0 F)35.6 C (96.1 F)9.4 C (48.9 F)
Oct35.6 C (96.1 F)-14.4 C (6.1 F)30.0 C (86.0 F)5.0 C (41.0 F)
Nov27.8 C (82.0 F)-21.7 C (-7.1 F)n/an/a
Dec23.3 C (73.9 F)-31.7 C (-25.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Washington by the year they were set 1,464 records at Washington still stand. 1936 holds the most, with 37. 0102030401893: 111894: 201895: 171896: 141897: 191898: 101899: 231900: 91901: 91902: 221903: 121904: 51905: 121906: 81907: 141908: 71909: 251910: 141911: 161912: 101913: 151914: 131915: 151916: 121917: 141918: 111919: 71920: 81921: 91922: 51923: 121924: 151925: 231926: 101927: 111928: 141929: 161930: 281931: 181932: 81933: 151934: 301935: 91936: 371937: 111938: 71939: 101940: 121941: 91942: 141943: 71944: 101945: 101946: 111947: 121948: 71949: 71950: 171951: 81952: 151953: 161954: 61955: 81956: 91957: 41958: 51959: 71960: 121961: 21962: 51963: 131964: 81965: 61966: 91967: 121968: 51969: 21970: 141971: 81972: 31973: 81974: 71975: 91976: 101977: 131978: 41979: 51980: 71981: 81982: 81983: 231984: 81985: 91986: 91987: 91988: 111989: 151990: 171991: 221992: 91993: 41994: 61995: 41996: 81997: 101998: 111999: 52000: 152001: 52002: 62003: 92004: 102005: 102006: 122007: 62008: 52009: 162010: 22011: 62012: 172013: 82014: 132015: 72016: 52017: 102018: 182019: 142020: 112021: 122022: 72023: 32024: 142025: 42026: 71893190719211935194919631977199120052019
1,464 records at Washington still stand. 1936 holds the most, with 37.
Standing records at Washington by the year they were set
Year setStanding records
189311
189420
189517
189614
189719
189810
189923
19009
19019
190222
190312
19045
190512
19068
190714
19087
190925
191014
191116
191210
191315
191413
191515
191612
191714
191811
19197
19208
19219
19225
192312
192415
192523
192610
192711
192814
192916
193028
193118
19328
193315
193430
19359
193637
193711
19387
193910
194012
19419
194214
19437
194410
194510
194611
194712
19487
19497
195017
19518
195215
195316
19546
19558
19569
19574
19585
19597
196012
19612
19625
196313
19648
19656
19669
196712
19685
19692
197014
19718
19723
19738
19747
19759
197610
197713
19784
19795
19807
19818
19828
198323
19848
19859
19869
19879
198811
198915
199017
199122
19929
19934
19946
19954
19968
199710
199811
19995
200015
20015
20026
20039
200410
200510
200612
20076
20085
200916
20102
20116
201217
20138
201413
20157
20165
201710
201818
201914
202011
202112
20227
20233
202414
20254
20267

All-Time Record Progression

16 new records
When Washington set new all-time records 16 all-time records were set at Washington between 5 January 1924 and 16 January 2009. Each dot is a new record. Record low maximum temperatureRecord daily precipitationRecord high minimum temperatureRecord high maximum temperatureRecord snow depthRecord low minimum temperature5 January 1924: Record low maximum temperature -22.8 C (-9.0 F)28 June 1924: Record daily precipitation 146.8 mm (5.8 in)24 July 1924: Record daily precipitation 147.3 mm (5.8 in)14 June 1930: Record daily precipitation 161.3 mm (6.4 in)26 July 1930: Record high minimum temperature 28.3 C (82.9 F)27 July 1930: Record high minimum temperature 28.9 C (84.0 F)3 August 1930: Record high maximum temperature 42.8 C (109.0 F)14 February 1936: Record snow depth 541.0 cm (213.0 in)18 February 1936: Record snow depth 561.3 cm (221.0 in)22 February 1936: Record snow depth 574.0 cm (226.0 in)12 July 1936: Record high maximum temperature 43.3 C (109.9 F)13 July 1936: Record high maximum temperature 44.4 C (111.9 F)15 July 1936: Record high maximum temperature 45.0 C (113.0 F)3 August 1943: Record daily precipitation 186.7 mm (7.4 in)3 February 1996: Record low maximum temperature -23.9 C (-11.0 F)16 January 2009: Record low minimum temperature -35.6 C (-32.1 F)193519501965198019952010
16 all-time records were set at Washington between 5 January 1924 and 16 January 2009. Each dot is a new record.
When Washington set new all-time records
DateKindDetail
1924-01-05Record low maximum temperatureRecord low maximum temperature -22.8 C (-9.0 F)
1924-06-28Record daily precipitationRecord daily precipitation 146.8 mm (5.8 in)
1924-07-24Record daily precipitationRecord daily precipitation 147.3 mm (5.8 in)
1930-06-14Record daily precipitationRecord daily precipitation 161.3 mm (6.4 in)
1930-07-26Record high minimum temperatureRecord high minimum temperature 28.3 C (82.9 F)
1930-07-27Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)
1930-08-03Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
1936-02-14Record snow depthRecord snow depth 541.0 cm (213.0 in)
1936-02-18Record snow depthRecord snow depth 561.3 cm (221.0 in)
1936-02-22Record snow depthRecord snow depth 574.0 cm (226.0 in)
1936-07-12Record high maximum temperatureRecord high maximum temperature 43.3 C (109.9 F)
1936-07-13Record high maximum temperatureRecord high maximum temperature 44.4 C (111.9 F)
1936-07-15Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
1943-08-03Record daily precipitationRecord daily precipitation 186.7 mm (7.4 in)
1996-02-03Record low maximum temperatureRecord low maximum temperature -23.9 C (-11.0 F)
2009-01-16Record low minimum temperatureRecord low minimum temperature -35.6 C (-32.1 F)

Wettest Day of Each Month

Aug: 186.7 mm (7.4 in)
Record daily precipitation for each month at Washington The wettest day on record for each calendar month at Washington. The most was 186.7 mm (7.4 in) on 3 August 1943. 050100150200 Jan: 54.6 mm (2.1 in), 4 January 1897 Jan Feb: 50.8 mm (2.0 in), 9 February 2001 Feb Mar: 112.0 mm (4.4 in), 26 March 1916 Mar Apr: 96.0 mm (3.8 in), 18 April 2013 Apr May: 99.6 mm (3.9 in), 4 May 2012 May Jun: 161.3 mm (6.4 in), 14 June 1930 Jun Jul: 147.3 mm (5.8 in), 24 July 1924 Jul Aug: 186.7 mm (7.4 in), 3 August 1943 Aug Sep: 102.9 mm (4.1 in), 10 September 1992 Sep Oct: 108.7 mm (4.3 in), 2 October 1927 Oct Nov: 76.2 mm (3.0 in), 3 November 1944 Nov Dec: 80.5 mm (3.2 in), 15 December 1971 Dec
The wettest day on record for each calendar month at Washington. The most was 186.7 mm (7.4 in) on 3 August 1943.
Record daily precipitation for each month at Washington
MonthRecord daily precipitation (mm)Date
Jan54.6 mm (2.1 in)4 January 1897
Feb50.8 mm (2.0 in)9 February 2001
Mar112.0 mm (4.4 in)26 March 1916
Apr96.0 mm (3.8 in)18 April 2013
May99.6 mm (3.9 in)4 May 2012
Jun161.3 mm (6.4 in)14 June 1930
Jul147.3 mm (5.8 in)24 July 1924
Aug186.7 mm (7.4 in)3 August 1943
Sep102.9 mm (4.1 in)10 September 1992
Oct108.7 mm (4.3 in)2 October 1927
Nov76.2 mm (3.0 in)3 November 1944
Dec80.5 mm (3.2 in)15 December 1971

Period of Record Coverage

1893 to 2026
Days with data per year at Washington 134 years of record at Washington, 1893 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1896, 1901, 1902, 1914, 2026. 1893: 336 of 365 days1894: 354 of 365 days1895: 358 of 365 days1896: 320 of 366 days1897: 342 of 365 days1898: 362 of 365 days1899: 357 of 365 days1900: 360 of 365 days1901: 295 of 365 days1902: 317 of 365 days1903: 345 of 365 days1904: 345 of 366 days1905: 359 of 365 days1906: 365 of 365 days1907: 359 of 365 days1908: 353 of 366 days1909: 365 of 365 days1910: 350 of 365 days1911: 363 of 365 days1912: 364 of 366 days1913: 363 of 365 days1914: 327 of 365 days1915: 364 of 365 days1916: 365 of 366 days1917: 362 of 365 days1918: 365 of 365 days1919: 365 of 365 days1920: 365 of 366 days1921: 364 of 365 days1922: 362 of 365 days1923: 363 of 365 days1924: 359 of 366 days1925: 364 of 365 days1926: 365 of 365 days1927: 362 of 365 days1928: 364 of 366 days1929: 362 of 365 days1930: 360 of 365 days1931: 361 of 365 days1932: 363 of 366 days1933: 361 of 365 days1934: 358 of 365 days1935: 360 of 365 days1936: 361 of 366 days1937: 359 of 365 days1938: 363 of 365 days1939: 362 of 365 days1940: 365 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 365 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 364 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 365 of 366 days1953: 364 of 365 days1954: 364 of 365 days1955: 365 of 365 days1956: 365 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 335 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 334 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 364 of 365 days1980: 364 of 366 days1981: 365 of 365 days1982: 364 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 364 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 365 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 362 of 366 days1993: 362 of 365 days1994: 365 of 365 days1995: 364 of 365 days1996: 364 of 366 days1997: 363 of 365 days1998: 362 of 365 days1999: 363 of 365 days2000: 365 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 364 of 365 days2006: 363 of 365 days2007: 356 of 365 days2008: 361 of 366 days2009: 362 of 365 days2010: 362 of 365 days2011: 364 of 365 days2012: 356 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 359 of 366 days2017: 361 of 365 days2018: 360 of 365 days2019: 365 of 365 days2020: 363 of 366 days2021: 357 of 365 days2022: 364 of 365 days2023: 358 of 365 days2024: 361 of 366 days2025: 361 of 365 days2026: 239 of 365 days1900192019401960198020002020
134 years of record at Washington, 1893 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1896, 1901, 1902, 1914, 2026.
Days with data per year at Washington
YearDays with dataShare of yearComplete
189333692%Yes
189435497%Yes
189535898%Yes
189632087%No
189734294%Yes
189836299%Yes
189935798%Yes
190036099%Yes
190129581%No
190231787%No
190334595%Yes
190434594%Yes
190535998%Yes
1906365100%Yes
190735998%Yes
190835396%Yes
1909365100%Yes
191035096%Yes
191136399%Yes
191236499%Yes
191336399%Yes
191432790%No
1915364100%Yes
1916365100%Yes
191736299%Yes
1918365100%Yes
1919365100%Yes
1920365100%Yes
1921364100%Yes
192236299%Yes
192336399%Yes
192435998%Yes
1925364100%Yes
1926365100%Yes
192736299%Yes
192836499%Yes
192936299%Yes
193036099%Yes
193136199%Yes
193236399%Yes
193336199%Yes
193435898%Yes
193536099%Yes
193636199%Yes
193735998%Yes
193836399%Yes
193936299%Yes
1940365100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944365100%Yes
1945365100%Yes
1946365100%Yes
1947364100%Yes
1948365100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952365100%Yes
1953364100%Yes
1954364100%Yes
1955365100%Yes
1956365100%Yes
1957364100%Yes
1958364100%Yes
1959364100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964365100%Yes
196533592%Yes
1966365100%Yes
1967365100%Yes
1968365100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973364100%Yes
1974365100%Yes
197533492%Yes
1976366100%Yes
1977365100%Yes
1978364100%Yes
1979364100%Yes
198036499%Yes
1981365100%Yes
1982364100%Yes
1983365100%Yes
1984366100%Yes
1985364100%Yes
1986364100%Yes
1987365100%Yes
1988365100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
199236299%Yes
199336299%Yes
1994365100%Yes
1995364100%Yes
199636499%Yes
199736399%Yes
199836299%Yes
199936399%Yes
2000365100%Yes
2001364100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005364100%Yes
200636399%Yes
200735698%Yes
200836199%Yes
200936299%Yes
201036299%Yes
2011364100%Yes
201235697%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
201635998%Yes
201736199%Yes
201836099%Yes
2019365100%Yes
202036399%Yes
202135798%Yes
2022364100%Yes
202335898%Yes
202436199%Yes
202536199%Yes
202623965%No

Latest Records

20
Latest records at Washington
DateStationRecordValueBeat old record byOld record stoodSignificance
1 October 2026Washington, USdaily rain (Provisional)29.2 mm (1.1 in)5.8 mm (0.23 in)99 years43 of 100 (Notable)
9 September 2026Washington, USdaily rain (Provisional)71.1 mm (2.8 in)15.0 mm (0.6 in)36 years31 of 100 (Routine)
14 August 2026Washington, USdaily rain101.1 mm (4.0 in)47.8 mm (1.9 in)40 years49 of 100 (Notable)
22 June 2026Washington, USdaily low max17.2 C (63.0 F)1.7 C (3.1 F)75 years36 of 100 (Notable)
10 June 2026Washington, USdaily high min22.8 C (73.0 F)0.6 C (1.1 F)115 years41 of 100 (Notable)
14 April 2026Washington, USdaily high min17.2 C (63.0 F)0.5 C (0.9 F)84 years35 of 100 (Notable)
31 March 2026Washington, USdaily high max29.4 C (84.9 F)1.6 C (2.9 F)48 years26 of 100 (Routine)
22 March 2026Washington, USmonthly high max (Tie)31.7 C (89.1 F)tie39 years7 of 100 (Routine)
18 March 2026Washington, USdaily low max (Tie)-1.7 C (28.9 F)tie36 years5 of 100 (Routine)
10 March 2026Washington, USdaily high max24.4 C (75.9 F)0.5 C (0.9 F)131 years40 of 100 (Notable)
17 February 2026Washington, USdaily high max20.6 C (69.1 F)1.7 C (3.1 F)44 years25 of 100 (Routine)
16 February 2026Washington, USdaily high max (Tie)18.9 C (66.0 F)tie104 years10 of 100 (Routine)
14 December 2025Washington, USdaily snowfall11.2 cm (4.4 in)0.8 cm (0.3 in)20 years17 of 100 (Routine)
7 September 2025Washington, USdaily low min3.3 C (37.9 F)1.1 C (2.0 F)68 years32 of 100 (Routine)
6 September 2025Washington, USdaily low min4.4 C (39.9 F)1.2 C (2.2 F)63 years30 of 100 (Routine)
26 August 2025Washington, USdaily low min6.1 C (43.0 F)1.1 C (2.0 F)115 years42 of 100 (Notable)
26 July 2025Washington, USdaily rain28.7 mm (1.1 in)2.5 mm (0.10 in)19 years16 of 100 (Routine)
20 May 2025Washington, USdaily rain37.3 mm (1.5 in)5.8 mm (0.23 in)110 years44 of 100 (Notable)
15 March 2025Washington, USdaily high max27.2 C (81.0 F)1.6 C (2.9 F)12 years15 of 100 (Routine)
20 February 2025Washington, USdaily low max (Tie)-12.8 C (9.0 F)tie130 years10 of 100 (Routine)

Climate Trend

127 complete years, 1893 to 2025
Annual mean temperature at Washington as warming stripes, 1893 to 2025 One stripe for each of 127 complete years at Washington, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 10.3 C (50.6 F); red stripes are warmer. The coolest year was 2014, at 8.1 C (46.5 F), and the warmest was 1987, at 12.6 C (54.6 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1893: 9.6 C, -0.7 C from the station mean1894: 10.6 C, +0.2 C from the station mean1895: 8.9 C, -1.4 C from the station mean1897: 9.2 C, -1.1 C from the station mean1898: 9.1 C, -1.3 C from the station mean1899: 9.1 C, -1.2 C from the station mean1900: 9.8 C, -0.5 C from the station mean1903: 8.5 C, -1.8 C from the station mean1904: 8.5 C, -1.8 C from the station mean1905: 9.3 C, -1.0 C from the station mean1906: 10.1 C, -0.2 C from the station mean1907: 9.4 C, -0.9 C from the station mean1908: 10.4 C, +0.1 C from the station mean1909: 9.6 C, -0.7 C from the station mean1910: 10.0 C, -0.3 C from the station mean1911: 11.2 C, +0.8 C from the station mean1912: 9.3 C, -1.0 C from the station mean1913: 11.2 C, +0.8 C from the station mean1915: 9.9 C, -0.5 C from the station mean1916: 9.7 C, -0.6 C from the station mean1917: 8.6 C, -1.7 C from the station mean1918: 10.5 C, +0.1 C from the station mean1919: 10.4 C, +0.1 C from the station mean1920: 10.0 C, -0.3 C from the station mean1921: 12.2 C, +1.8 C from the station mean1922: 11.1 C, +0.7 C from the station mean1923: 10.3 C, 0.0 C from the station mean1924: 9.0 C, -1.3 C from the station mean1925: 10.2 C, -0.1 C from the station mean1926: 9.8 C, -0.5 C from the station mean1927: 10.5 C, +0.2 C from the station mean1928: 10.7 C, +0.4 C from the station mean1929: 9.2 C, -1.2 C from the station mean1930: 11.3 C, +0.9 C from the station mean1931: 12.5 C, +2.2 C from the station mean1932: 10.3 C, 0.0 C from the station mean1933: 11.5 C, +1.2 C from the station mean1934: 11.8 C, +1.5 C from the station mean1935: 10.2 C, -0.1 C from the station mean1936: 10.7 C, +0.4 C from the station mean1937: 9.8 C, -0.5 C from the station mean1938: 11.4 C, +1.1 C from the station mean1939: 11.1 C, +0.8 C from the station mean1940: 9.8 C, -0.6 C from the station mean1941: 11.4 C, +1.1 C from the station mean1942: 10.5 C, +0.2 C from the station mean1943: 9.9 C, -0.4 C from the station mean1944: 10.7 C, +0.4 C from the station mean1945: 9.7 C, -0.6 C from the station mean1946: 11.3 C, +1.0 C from the station mean1947: 10.3 C, 0.0 C from the station mean1948: 10.4 C, +0.1 C from the station mean1949: 10.8 C, +0.5 C from the station mean1950: 9.1 C, -1.2 C from the station mean1951: 9.0 C, -1.3 C from the station mean1952: 11.1 C, +0.7 C from the station mean1953: 11.7 C, +1.4 C from the station mean1954: 11.6 C, +1.2 C from the station mean1955: 10.9 C, +0.5 C from the station mean1956: 11.3 C, +1.0 C from the station mean1957: 10.7 C, +0.4 C from the station mean1958: 9.9 C, -0.4 C from the station mean1959: 10.2 C, -0.1 C from the station mean1960: 9.7 C, -0.6 C from the station mean1961: 10.2 C, -0.1 C from the station mean1962: 9.8 C, -0.5 C from the station mean1963: 10.3 C, 0.0 C from the station mean1964: 11.1 C, +0.8 C from the station mean1966: 10.0 C, -0.3 C from the station mean1967: 10.0 C, -0.3 C from the station mean1968: 10.9 C, +0.5 C from the station mean1969: 10.2 C, -0.1 C from the station mean1970: 10.7 C, +0.4 C from the station mean1971: 11.2 C, +0.9 C from the station mean1972: 10.1 C, -0.2 C from the station mean1973: 11.7 C, +1.4 C from the station mean1974: 11.0 C, +0.7 C from the station mean1976: 10.6 C, +0.3 C from the station mean1977: 11.2 C, +0.9 C from the station mean1978: 9.6 C, -0.7 C from the station mean1979: 9.8 C, -0.5 C from the station mean1980: 11.2 C, +0.8 C from the station mean1981: 11.6 C, +1.3 C from the station mean1982: 10.0 C, -0.3 C from the station mean1983: 11.2 C, +0.8 C from the station mean1984: 10.8 C, +0.5 C from the station mean1985: 9.9 C, -0.5 C from the station mean1986: 11.3 C, +1.0 C from the station mean1987: 12.6 C, +2.3 C from the station mean1988: 11.3 C, +1.0 C from the station mean1989: 10.0 C, -0.3 C from the station mean1990: 11.7 C, +1.3 C from the station mean1991: 11.4 C, +1.1 C from the station mean1992: 10.6 C, +0.3 C from the station mean1993: 9.8 C, -0.5 C from the station mean1994: 10.8 C, +0.5 C from the station mean1995: 10.4 C, +0.1 C from the station mean1996: 9.7 C, -0.7 C from the station mean1997: 10.3 C, 0.0 C from the station mean1998: 12.3 C, +2.0 C from the station mean1999: 10.1 C, -0.2 C from the station mean2000: 9.8 C, -0.6 C from the station mean2001: 10.0 C, -0.3 C from the station mean2002: 10.1 C, -0.2 C from the station mean2003: 9.2 C, -1.1 C from the station mean2004: 9.9 C, -0.4 C from the station mean2005: 10.5 C, +0.2 C from the station mean2006: 10.9 C, +0.5 C from the station mean2007: 10.1 C, -0.2 C from the station mean2008: 8.5 C, -1.8 C from the station mean2009: 8.9 C, -1.4 C from the station mean2010: 9.7 C, -0.6 C from the station mean2011: 9.9 C, -0.4 C from the station mean2012: 11.9 C, +1.5 C from the station mean2013: 9.0 C, -1.3 C from the station mean2014: 8.1 C, -2.2 C from the station mean2015: 10.2 C, -0.2 C from the station mean2016: 11.2 C, +0.9 C from the station mean2017: 10.5 C, +0.2 C from the station mean2018: 9.1 C, -1.2 C from the station mean2019: 9.2 C, -1.1 C from the station mean2020: 10.1 C, -0.2 C from the station mean2021: 10.5 C, +0.2 C from the station mean2022: 9.2 C, -1.1 C from the station mean2023: 10.7 C, +0.4 C from the station mean2024: 11.3 C, +1.0 C from the station mean2025: 10.5 C, +0.2 C from the station mean18931900191019201930194019501960197019801990200020102020
One stripe for each of 127 complete years at Washington, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 10.3 C (50.6 F); red stripes are warmer. The coolest year was 2014, at 8.1 C (46.5 F), and the warmest was 1987, at 12.6 C (54.6 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Washington as warming stripes, 1893 to 2025
YearAnnual mean temperatureDifference from the station mean
18939.6 C-0.72 C
189410.6 C+0.23 C
18958.9 C-1.39 C
18979.2 C-1.13 C
18989.1 C-1.26 C
18999.1 C-1.25 C
19009.8 C-0.52 C
19038.5 C-1.83 C
19048.5 C-1.83 C
19059.3 C-1.02 C
190610.1 C-0.23 C
19079.4 C-0.95 C
190810.4 C+0.08 C
19099.6 C-0.72 C
191010.0 C-0.28 C
191111.2 C+0.84 C
19129.3 C-1.04 C
191311.2 C+0.84 C
19159.9 C-0.47 C
19169.7 C-0.61 C
19178.6 C-1.73 C
191810.5 C+0.13 C
191910.4 C+0.05 C
192010.0 C-0.32 C
192112.2 C+1.84 C
192211.1 C+0.74 C
192310.3 C-0.04 C
19249.0 C-1.32 C
192510.2 C-0.12 C
19269.8 C-0.53 C
192710.5 C+0.22 C
192810.7 C+0.39 C
19299.2 C-1.16 C
193011.3 C+0.93 C
193112.5 C+2.17 C
193210.3 C+0.01 C
193311.5 C+1.21 C
193411.8 C+1.45 C
193510.2 C-0.15 C
193610.7 C+0.39 C
19379.8 C-0.53 C
193811.4 C+1.12 C
193911.1 C+0.79 C
19409.8 C-0.57 C
194111.4 C+1.12 C
194210.5 C+0.15 C
19439.9 C-0.41 C
194410.7 C+0.36 C
19459.7 C-0.60 C
194611.3 C+0.98 C
194710.3 C-0.01 C
194810.4 C+0.10 C
194910.8 C+0.52 C
19509.1 C-1.23 C
19519.0 C-1.35 C
195211.1 C+0.74 C
195311.7 C+1.38 C
195411.6 C+1.23 C
195510.9 C+0.53 C
195611.3 C+0.98 C
195710.7 C+0.42 C
19589.9 C-0.44 C
195910.2 C-0.13 C
19609.7 C-0.58 C
196110.2 C-0.08 C
19629.8 C-0.50 C
196310.3 C-0.01 C
196411.1 C+0.79 C
196610.0 C-0.31 C
196710.0 C-0.35 C
196810.9 C+0.53 C
196910.2 C-0.08 C
197010.7 C+0.40 C
197111.2 C+0.91 C
197210.1 C-0.18 C
197311.7 C+1.41 C
197411.0 C+0.65 C
197610.6 C+0.26 C
197711.2 C+0.90 C
19789.6 C-0.70 C
19799.8 C-0.54 C
198011.2 C+0.83 C
198111.6 C+1.26 C
198210.0 C-0.30 C
198311.2 C+0.83 C
198410.8 C+0.49 C
19859.9 C-0.46 C
198611.3 C+0.96 C
198712.6 C+2.25 C
198811.3 C+0.95 C
198910.0 C-0.33 C
199011.7 C+1.34 C
199111.4 C+1.11 C
199210.6 C+0.30 C
19939.8 C-0.55 C
199410.8 C+0.51 C
199510.4 C+0.11 C
19969.7 C-0.67 C
199710.3 C-0.02 C
199812.3 C+2.01 C
199910.1 C-0.18 C
20009.8 C-0.56 C
200110.0 C-0.28 C
200210.1 C-0.25 C
20039.2 C-1.09 C
20049.9 C-0.43 C
200510.5 C+0.22 C
200610.9 C+0.54 C
200710.1 C-0.23 C
20088.5 C-1.82 C
20098.9 C-1.43 C
20109.7 C-0.64 C
20119.9 C-0.45 C
201211.9 C+1.54 C
20139.0 C-1.30 C
20148.1 C-2.24 C
201510.2 C-0.17 C
201611.2 C+0.85 C
201710.5 C+0.15 C
20189.1 C-1.21 C
20199.2 C-1.11 C
202010.1 C-0.20 C
202110.5 C+0.17 C
20229.2 C-1.08 C
202310.7 C+0.39 C
202411.3 C+0.99 C
202510.5 C+0.20 C

The fitted trend in annual mean temperature here over 1893 to 2025 is 0.03 C (-0.02 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.03 to 0.12) per decade. The slope is a straight line fitted to 127 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Washington
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.03 C (-0.02 to 0.07) per decade0.05 F (-0.03 to 0.12) per decade1893 to 2025127Not clearly different from zero
Mean daily maximum0.03 C (-0.01 to 0.08) per decade0.06 F (-0.02 to 0.14) per decade1893 to 2025127Not clearly different from zero
Mean daily minimum0.02 C (-0.03 to 0.07) per decade0.04 F (-0.05 to 0.12) per decade1893 to 2025127Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 2026
Yearly extremes at Washington: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.0 C (113.0 F)193636.7 C (98.1 F)134
Coldest night (TNn)-35.6 C (-32.1 F)2009-25.6 C (-14.1 F)134
Wettest day (Rx1day)186.7 mm (7.4 in)194362.0 mm (2.4 in)134
Wettest five days (Rx5day)268.2 mm (10.6 in)193096.3 mm (3.8 in)134
Longest dry spell (CDD)63 days195223 days134

Hottest day (TXx)

Hottest day (TXx) at Washington by year The hottest day of the year at Washington, 1893 to 2026. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 36.7 C (98.1 F). 303540451900192019401960198020002020Record: 45.0 C (113.0 F) in 1936
The hottest day of the year at Washington, 1893 to 2026. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Washington by year
YearHottest day (TXx)
189337.8 C (100.0 F)
189440.0 C (104.0 F)
189536.1 C (97.0 F)
189635.0 C (95.0 F)
189737.2 C (99.0 F)
189836.1 C (97.0 F)
189938.3 C (100.9 F)
190036.7 C (98.1 F)
190141.1 C (106.0 F)
190232.8 C (91.0 F)
190336.7 C (98.1 F)
190433.3 C (91.9 F)
190533.9 C (93.0 F)
190633.9 C (93.0 F)
190732.8 C (91.0 F)
190835.0 C (95.0 F)
190936.1 C (97.0 F)
191036.7 C (98.1 F)
191140.6 C (105.1 F)
191235.6 C (96.1 F)
191340.0 C (104.0 F)
191437.8 C (100.0 F)
191534.4 C (93.9 F)
191638.3 C (100.9 F)
191737.8 C (100.0 F)
191838.3 C (100.9 F)
191937.2 C (99.0 F)
192035.0 C (95.0 F)
192136.7 C (98.1 F)
192236.1 C (97.0 F)
192335.6 C (96.1 F)
192434.4 C (93.9 F)
192538.3 C (100.9 F)
192636.7 C (98.1 F)
192737.2 C (99.0 F)
192833.9 C (93.0 F)
192935.0 C (95.0 F)
193042.8 C (109.0 F)
193138.3 C (100.9 F)
193235.0 C (95.0 F)
193338.9 C (102.0 F)
193442.2 C (108.0 F)
193537.8 C (100.0 F)
193645.0 C (113.0 F)
193738.3 C (100.9 F)
193837.8 C (100.0 F)
193937.2 C (99.0 F)
194041.7 C (107.1 F)
194140.6 C (105.1 F)
194237.8 C (100.0 F)
194335.0 C (95.0 F)
194435.6 C (96.1 F)
194537.8 C (100.0 F)
194635.6 C (96.1 F)
194740.0 C (104.0 F)
194837.8 C (100.0 F)
194935.6 C (96.1 F)
195033.3 C (91.9 F)
195135.6 C (96.1 F)
195236.7 C (98.1 F)
195338.3 C (100.9 F)
195437.8 C (100.0 F)
195538.9 C (102.0 F)
195640.6 C (105.1 F)
195737.8 C (100.0 F)
195835.0 C (95.0 F)
195935.0 C (95.0 F)
196037.2 C (99.0 F)
196135.0 C (95.0 F)
196235.6 C (96.1 F)
196337.8 C (100.0 F)
196437.2 C (99.0 F)
196535.6 C (96.1 F)
196638.3 C (100.9 F)
196733.9 C (93.0 F)
196836.7 C (98.1 F)
196935.0 C (95.0 F)
197036.7 C (98.1 F)
197137.2 C (99.0 F)
197236.1 C (97.0 F)
197335.0 C (95.0 F)
197437.2 C (99.0 F)
197536.1 C (97.0 F)
197636.1 C (97.0 F)
197738.9 C (102.0 F)
197834.4 C (93.9 F)
197935.6 C (96.1 F)
198037.8 C (100.0 F)
198136.1 C (97.0 F)
198235.0 C (95.0 F)
198340.6 C (105.1 F)
198437.8 C (100.0 F)
198536.1 C (97.0 F)
198639.4 C (102.9 F)
198739.4 C (102.9 F)
198841.1 C (106.0 F)
198937.2 C (99.0 F)
199036.7 C (98.1 F)
199138.3 C (100.9 F)
199233.3 C (91.9 F)
199333.9 C (93.0 F)
199433.9 C (93.0 F)
199537.8 C (100.0 F)
199635.6 C (96.1 F)
199736.1 C (97.0 F)
199836.1 C (97.0 F)
199937.2 C (99.0 F)
200037.2 C (99.0 F)
200135.6 C (96.1 F)
200235.6 C (96.1 F)
200337.2 C (99.0 F)
200432.8 C (91.0 F)
200537.8 C (100.0 F)
200636.7 C (98.1 F)
200733.9 C (93.0 F)
200835.0 C (95.0 F)
200935.0 C (95.0 F)
201034.4 C (93.9 F)
201139.4 C (102.9 F)
201240.6 C (105.1 F)
201337.8 C (100.0 F)
201433.9 C (93.0 F)
201534.4 C (93.9 F)
201635.6 C (96.1 F)
201737.2 C (99.0 F)
201836.1 C (97.0 F)
201935.6 C (96.1 F)
202035.6 C (96.1 F)
202134.4 C (93.9 F)
202237.2 C (99.0 F)
202338.3 C (100.9 F)
202436.1 C (97.0 F)
202536.1 C (97.0 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Washington by year The coldest night of the year at Washington, 1893 to 2026. The record is -35.6 C (-32.1 F) in 2009, marked on the chart; the median year is -25.6 C (-14.1 F). -40-35-30-25-20-151900192019401960198020002020Record: -35.6 C (-32.1 F) in 2009
The coldest night of the year at Washington, 1893 to 2026. The record is -35.6 C (-32.1 F) in 2009, marked on the chart; the median year is -25.6 C (-14.1 F).
Coldest night (TNn) at Washington by year
YearColdest night (TNn)
1893-26.1 C (-15.0 F)
1894-31.1 C (-24.0 F)
1895-30.0 C (-22.0 F)
1896-22.8 C (-9.0 F)
1897-28.9 C (-20.0 F)
1898-24.4 C (-11.9 F)
1899-32.2 C (-26.0 F)
1900-23.9 C (-11.0 F)
1901-25.0 C (-13.0 F)
1902-28.9 C (-20.0 F)
1903-28.3 C (-18.9 F)
1904-28.9 C (-20.0 F)
1905-33.9 C (-29.0 F)
1906-22.8 C (-9.0 F)
1907-23.3 C (-9.9 F)
1908-22.2 C (-8.0 F)
1909-26.1 C (-15.0 F)
1910-28.3 C (-18.9 F)
1911-26.7 C (-16.1 F)
1912-32.2 C (-26.0 F)
1913-24.4 C (-11.9 F)
1914-28.3 C (-18.9 F)
1915-23.3 C (-9.9 F)
1916-30.0 C (-22.0 F)
1917-28.9 C (-20.0 F)
1918-29.4 C (-20.9 F)
1919-28.9 C (-20.0 F)
1920-25.0 C (-13.0 F)
1921-25.0 C (-13.0 F)
1922-22.8 C (-9.0 F)
1923-31.7 C (-25.1 F)
1924-31.7 C (-25.1 F)
1925-25.6 C (-14.1 F)
1926-25.0 C (-13.0 F)
1927-26.1 C (-15.0 F)
1928-25.0 C (-13.0 F)
1929-26.7 C (-16.1 F)
1930-32.2 C (-26.0 F)
1931-17.2 C (1.0 F)
1932-26.7 C (-16.1 F)
1933-31.7 C (-25.1 F)
1934-24.4 C (-11.9 F)
1935-25.0 C (-13.0 F)
1936-30.0 C (-22.0 F)
1937-21.1 C (-6.0 F)
1938-21.7 C (-7.1 F)
1939-21.1 C (-6.0 F)
1940-28.3 C (-18.9 F)
1941-21.1 C (-6.0 F)
1942-28.9 C (-20.0 F)
1943-27.2 C (-17.0 F)
1944-23.3 C (-9.9 F)
1945-24.4 C (-11.9 F)
1946-22.2 C (-8.0 F)
1947-28.3 C (-18.9 F)
1948-22.2 C (-8.0 F)
1949-26.1 C (-15.0 F)
1950-25.0 C (-13.0 F)
1951-26.7 C (-16.1 F)
1952-20.6 C (-5.1 F)
1953-22.2 C (-8.0 F)
1954-23.9 C (-11.0 F)
1955-27.2 C (-17.0 F)
1956-23.9 C (-11.0 F)
1957-28.9 C (-20.0 F)
1958-27.8 C (-18.0 F)
1959-26.1 C (-15.0 F)
1960-25.0 C (-13.0 F)
1961-23.9 C (-11.0 F)
1962-26.7 C (-16.1 F)
1963-28.9 C (-20.0 F)
1964-21.1 C (-6.0 F)
1965-25.0 C (-13.0 F)
1966-29.4 C (-20.9 F)
1967-24.4 C (-11.9 F)
1968-25.6 C (-14.1 F)
1969-23.9 C (-11.0 F)
1970-30.0 C (-22.0 F)
1971-26.1 C (-15.0 F)
1972-26.7 C (-16.1 F)
1973-22.2 C (-8.0 F)
1974-30.6 C (-23.1 F)
1975-24.4 C (-11.9 F)
1976-25.0 C (-13.0 F)
1977-28.9 C (-20.0 F)
1978-23.3 C (-9.9 F)
1979-30.6 C (-23.1 F)
1980-21.7 C (-7.1 F)
1981-25.0 C (-13.0 F)
1982-30.0 C (-22.0 F)
1983-31.1 C (-24.0 F)
1984-25.6 C (-14.1 F)
1985-30.0 C (-22.0 F)
1986-23.9 C (-11.0 F)
1987-20.0 C (-4.0 F)
1988-26.1 C (-15.0 F)
1989-30.6 C (-23.1 F)
1990-22.2 C (-8.0 F)
1991-21.7 C (-7.1 F)
1992-22.2 C (-8.0 F)
1993-22.2 C (-8.0 F)
1994-28.3 C (-18.9 F)
1995-21.7 C (-7.1 F)
1996-32.2 C (-26.0 F)
1997-25.0 C (-13.0 F)
1998-22.2 C (-8.0 F)
1999-27.2 C (-17.0 F)
2000-28.3 C (-18.9 F)
2001-23.9 C (-11.0 F)
2002-21.1 C (-6.0 F)
2003-22.2 C (-8.0 F)
2004-24.4 C (-11.9 F)
2005-25.0 C (-13.0 F)
2006-22.8 C (-9.0 F)
2007-25.0 C (-13.0 F)
2008-25.0 C (-13.0 F)
2009-35.6 C (-32.1 F)
2010-27.8 C (-18.0 F)
2011-28.3 C (-18.9 F)
2012-22.8 C (-9.0 F)
2013-28.3 C (-18.9 F)
2014-30.0 C (-22.0 F)
2015-27.2 C (-17.0 F)
2016-25.6 C (-14.1 F)
2017-24.4 C (-11.9 F)
2018-30.6 C (-23.1 F)
2019-34.4 C (-29.9 F)
2020-25.0 C (-13.0 F)
2021-27.2 C (-17.0 F)
2022-25.0 C (-13.0 F)
2023-20.0 C (-4.0 F)
2024-27.8 C (-18.0 F)
2025-25.0 C (-13.0 F)
2026-25.0 C (-13.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Washington by year The wettest day of the year at Washington, 1893 to 2026. The record is 186.7 mm (7.4 in) in 1943, marked on the chart; the median year is 62.0 mm (2.4 in). 0501001502001900192019401960198020002020Record: 186.7 mm (7.4 in) in 1943
The wettest day of the year at Washington, 1893 to 2026. The record is 186.7 mm (7.4 in) in 1943, marked on the chart; the median year is 62.0 mm (2.4 in).
Wettest day (Rx1day) at Washington by year
YearWettest day (Rx1day)
189346.5 mm (1.8 in)
189447.5 mm (1.9 in)
189565.5 mm (2.6 in)
189645.2 mm (1.8 in)
1897121.9 mm (4.8 in)
189845.0 mm (1.8 in)
189936.3 mm (1.4 in)
190063.5 mm (2.5 in)
190135.1 mm (1.4 in)
190283.8 mm (3.3 in)
190382.0 mm (3.2 in)
190450.3 mm (2.0 in)
190578.0 mm (3.1 in)
190655.4 mm (2.2 in)
190741.1 mm (1.6 in)
190894.5 mm (3.7 in)
190963.5 mm (2.5 in)
1910107.2 mm (4.2 in)
191159.7 mm (2.4 in)
191273.2 mm (2.9 in)
191365.3 mm (2.6 in)
191442.7 mm (1.7 in)
191579.5 mm (3.1 in)
1916112.0 mm (4.4 in)
191762.5 mm (2.5 in)
191844.2 mm (1.7 in)
191981.3 mm (3.2 in)
192062.0 mm (2.4 in)
192148.8 mm (1.9 in)
192250.8 mm (2.0 in)
192392.7 mm (3.6 in)
1924147.3 mm (5.8 in)
192595.3 mm (3.8 in)
192685.1 mm (3.4 in)
1927108.7 mm (4.3 in)
192886.4 mm (3.4 in)
192952.6 mm (2.1 in)
1930161.3 mm (6.4 in)
193163.0 mm (2.5 in)
193262.2 mm (2.4 in)
1933102.9 mm (4.1 in)
193455.4 mm (2.2 in)
193568.6 mm (2.7 in)
193643.9 mm (1.7 in)
193751.8 mm (2.0 in)
193861.0 mm (2.4 in)
193993.5 mm (3.7 in)
194048.3 mm (1.9 in)
194158.4 mm (2.3 in)
194243.2 mm (1.7 in)
1943186.7 mm (7.4 in)
194476.2 mm (3.0 in)
194552.1 mm (2.1 in)
194655.1 mm (2.2 in)
194765.5 mm (2.6 in)
194888.9 mm (3.5 in)
194936.6 mm (1.4 in)
195058.4 mm (2.3 in)
1951167.1 mm (6.6 in)
195279.8 mm (3.1 in)
195332.5 mm (1.3 in)
195448.0 mm (1.9 in)
195567.3 mm (2.6 in)
195635.1 mm (1.4 in)
195739.6 mm (1.6 in)
195869.6 mm (2.7 in)
195962.0 mm (2.4 in)
196049.5 mm (1.9 in)
196159.7 mm (2.4 in)
196245.0 mm (1.8 in)
196350.8 mm (2.0 in)
196457.9 mm (2.3 in)
1965106.4 mm (4.2 in)
196669.1 mm (2.7 in)
196787.6 mm (3.4 in)
196855.1 mm (2.2 in)
196958.4 mm (2.3 in)
1970108.7 mm (4.3 in)
197180.5 mm (3.2 in)
197266.0 mm (2.6 in)
197361.0 mm (2.4 in)
197451.8 mm (2.0 in)
197528.7 mm (1.1 in)
197656.9 mm (2.2 in)
197763.0 mm (2.5 in)
197883.3 mm (3.3 in)
197955.9 mm (2.2 in)
198063.5 mm (2.5 in)
198184.8 mm (3.3 in)
198288.9 mm (3.5 in)
198349.5 mm (1.9 in)
198459.4 mm (2.3 in)
198551.6 mm (2.0 in)
198653.3 mm (2.1 in)
198758.4 mm (2.3 in)
198862.0 mm (2.4 in)
198960.2 mm (2.4 in)
1990105.7 mm (4.2 in)
199140.1 mm (1.6 in)
1992102.9 mm (4.1 in)
199377.5 mm (3.1 in)
199441.7 mm (1.6 in)
199555.9 mm (2.2 in)
199686.4 mm (3.4 in)
199748.5 mm (1.9 in)
199891.9 mm (3.6 in)
199963.5 mm (2.5 in)
200051.1 mm (2.0 in)
200161.0 mm (2.4 in)
200251.3 mm (2.0 in)
200366.5 mm (2.6 in)
200451.8 mm (2.0 in)
200540.1 mm (1.6 in)
200640.6 mm (1.6 in)
200797.5 mm (3.8 in)
200873.7 mm (2.9 in)
2009132.8 mm (5.2 in)
201074.7 mm (2.9 in)
201151.3 mm (2.0 in)
201299.6 mm (3.9 in)
201396.0 mm (3.8 in)
201487.1 mm (3.4 in)
201577.7 mm (3.1 in)
201657.2 mm (2.3 in)
201744.5 mm (1.8 in)
201873.7 mm (2.9 in)
201955.9 mm (2.2 in)
202064.8 mm (2.6 in)
202150.8 mm (2.0 in)
202254.6 mm (2.1 in)
202349.3 mm (1.9 in)
202437.1 mm (1.5 in)
202566.0 mm (2.6 in)
2026101.1 mm (4.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Washington by year The wettest five days of the year at Washington, 1893 to 2026. The record is 268.2 mm (10.6 in) in 1930, marked on the chart; the median year is 96.3 mm (3.8 in). 01002003001900192019401960198020002020Record: 268.2 mm (10.6 in) in 1930
The wettest five days of the year at Washington, 1893 to 2026. The record is 268.2 mm (10.6 in) in 1930, marked on the chart; the median year is 96.3 mm (3.8 in).
Wettest five days (Rx5day) at Washington by year
YearWettest five days (Rx5day)
189367.5 mm (2.7 in)
189465.5 mm (2.6 in)
189571.9 mm (2.8 in)
189696.5 mm (3.8 in)
1897136.1 mm (5.4 in)
189866.8 mm (2.6 in)
189947.6 mm (1.9 in)
1900151.6 mm (6.0 in)
190142.3 mm (1.7 in)
1902118.2 mm (4.7 in)
1903109.2 mm (4.3 in)
190458.4 mm (2.3 in)
1905102.9 mm (4.1 in)
190683.7 mm (3.3 in)
190769.1 mm (2.7 in)
1908114.0 mm (4.5 in)
190982.8 mm (3.3 in)
1910127.5 mm (5.0 in)
191195.2 mm (3.7 in)
191287.2 mm (3.4 in)
1913107.8 mm (4.2 in)
191452.3 mm (2.1 in)
1915116.4 mm (4.6 in)
1916141.2 mm (5.6 in)
1917126.3 mm (5.0 in)
191867.1 mm (2.6 in)
191995.4 mm (3.8 in)
192076.7 mm (3.0 in)
192195.3 mm (3.8 in)
192293.0 mm (3.7 in)
1923159.7 mm (6.3 in)
1924188.7 mm (7.4 in)
1925141.3 mm (5.6 in)
1926146.0 mm (5.7 in)
1927149.3 mm (5.9 in)
1928110.5 mm (4.4 in)
192982.1 mm (3.2 in)
1930268.2 mm (10.6 in)
1931113.0 mm (4.4 in)
193287.6 mm (3.4 in)
1933120.7 mm (4.8 in)
1934120.9 mm (4.8 in)
1935143.0 mm (5.6 in)
193691.9 mm (3.6 in)
193774.5 mm (2.9 in)
193889.0 mm (3.5 in)
193996.0 mm (3.8 in)
194067.4 mm (2.7 in)
194176.2 mm (3.0 in)
194269.1 mm (2.7 in)
1943219.2 mm (8.6 in)
1944100.6 mm (4.0 in)
194594.8 mm (3.7 in)
1946158.2 mm (6.2 in)
194765.5 mm (2.6 in)
1948119.6 mm (4.7 in)
194983.1 mm (3.3 in)
195095.8 mm (3.8 in)
1951213.6 mm (8.4 in)
195284.9 mm (3.3 in)
195347.0 mm (1.9 in)
195489.7 mm (3.5 in)
195588.6 mm (3.5 in)
195652.4 mm (2.1 in)
195766.2 mm (2.6 in)
195886.6 mm (3.4 in)
1959112.0 mm (4.4 in)
1960143.2 mm (5.6 in)
1961117.4 mm (4.6 in)
196288.6 mm (3.5 in)
196385.4 mm (3.4 in)
196479.0 mm (3.1 in)
1965159.8 mm (6.3 in)
1966100.5 mm (4.0 in)
1967119.8 mm (4.7 in)
196874.9 mm (2.9 in)
196980.3 mm (3.2 in)
1970153.2 mm (6.0 in)
197189.4 mm (3.5 in)
197282.7 mm (3.3 in)
1973112.5 mm (4.4 in)
197495.8 mm (3.8 in)
197545.5 mm (1.8 in)
197693.5 mm (3.7 in)
1977137.4 mm (5.4 in)
1978124.4 mm (4.9 in)
197989.4 mm (3.5 in)
1980128.7 mm (5.1 in)
1981140.4 mm (5.5 in)
1982150.6 mm (5.9 in)
198398.5 mm (3.9 in)
1984114.9 mm (4.5 in)
198597.1 mm (3.8 in)
1986110.8 mm (4.4 in)
198791.9 mm (3.6 in)
198881.8 mm (3.2 in)
1989134.6 mm (5.3 in)
1990167.0 mm (6.6 in)
199162.5 mm (2.5 in)
1992131.3 mm (5.2 in)
1993141.3 mm (5.6 in)
199463.0 mm (2.5 in)
199598.1 mm (3.9 in)
1996146.6 mm (5.8 in)
1997103.7 mm (4.1 in)
1998115.8 mm (4.6 in)
199983.8 mm (3.3 in)
200078.8 mm (3.1 in)
2001107.2 mm (4.2 in)
200292.2 mm (3.6 in)
200371.8 mm (2.8 in)
200481.8 mm (3.2 in)
200557.6 mm (2.3 in)
200666.0 mm (2.6 in)
2007133.5 mm (5.3 in)
200897.4 mm (3.8 in)
2009142.2 mm (5.6 in)
2010134.6 mm (5.3 in)
201156.1 mm (2.2 in)
2012136.4 mm (5.4 in)
2013119.8 mm (4.7 in)
2014103.9 mm (4.1 in)
2015114.5 mm (4.5 in)
201667.4 mm (2.7 in)
2017101.9 mm (4.0 in)
2018121.2 mm (4.8 in)
2019117.7 mm (4.6 in)
2020103.7 mm (4.1 in)
202190.2 mm (3.6 in)
202257.4 mm (2.3 in)
202360.7 mm (2.4 in)
202472.7 mm (2.9 in)
202582.5 mm (3.2 in)
2026140.0 mm (5.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Washington by year The longest dry spell of the year at Washington, 1893 to 2026. The record is 63 days in 1952, marked on the chart; the median year is 23 days. 0204060801900192019401960198020002020Record: 63 days in 1952
The longest dry spell of the year at Washington, 1893 to 2026. The record is 63 days in 1952, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Washington by year
YearLongest dry spell (CDD)
189332 days
189433 days
189525 days
189623 days
189724 days
189820 days
189930 days
190018 days
190130 days
190228 days
190328 days
190430 days
190523 days
190620 days
190725 days
190827 days
190929 days
191021 days
191125 days
191229 days
191329 days
191421 days
191523 days
191620 days
191733 days
191819 days
191932 days
192027 days
192116 days
192223 days
192328 days
192422 days
192522 days
192626 days
192719 days
192823 days
192915 days
193022 days
193145 days
193221 days
193327 days
193435 days
193516 days
193623 days
193726 days
193824 days
193925 days
194037 days
194118 days
194220 days
194327 days
194427 days
194520 days
194622 days
194742 days
194831 days
194922 days
195032 days
195116 days
195263 days
195330 days
195426 days
195516 days
195633 days
195728 days
195824 days
195922 days
196016 days
196115 days
196219 days
196321 days
196422 days
196514 days
196651 days
196730 days
196835 days
196932 days
197022 days
197129 days
197223 days
197319 days
197415 days
197517 days
197626 days
197730 days
197823 days
197918 days
198026 days
198131 days
198218 days
198325 days
198427 days
198521 days
198622 days
198741 days
198823 days
198940 days
199016 days
199132 days
199217 days
199327 days
199421 days
199523 days
199617 days
199721 days
199823 days
199937 days
200018 days
200115 days
200230 days
200321 days
200420 days
200524 days
200620 days
200731 days
200814 days
200924 days
201020 days
201123 days
201224 days
201339 days
201417 days
201520 days
201622 days
201719 days
201821 days
201918 days
202021 days
202127 days
202226 days
202324 days
202422 days
202522 days
202641 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

127 years with a frost

Across 127 years with a frost, the median last spring frost at Washington falls on 23 April and the median first autumn frost on 11 October, which leaves a median of 171 days between them.

In 1996 to 2025 the median growing season was 172 days. That is 4 days more than in 1893 to 1926.

Fitted over all years, the growing season changes by +0.5 days per decade at this station.

Frost dates and growing season at Washington
MeasureMedian, all yearsEarliest period (1893 to 1926)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost23 April26 April23 April3 days earlier-0.3 days per decade
First autumn frost11 October10 October13 October3 days later+0.1 days per decade
Growing days171 days168 days172 days4 days more+0.5 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

131 years, 1893 to 2025

A day with at least 62.2 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 169.1 mm (6.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Washington: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years62.2 mm (2.4 in)
5 years84.6 mm (3.3 in)
10 years101.7 mm (4.0 in)
25 years126.1 mm (5.0 in)
50 years146.6 mm (5.8 in)
100 years169.1 mm (6.7 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 131 years of values from 1893 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 186.7 mm (7.4 in) in 1943; 167.1 mm (6.6 in) in 1951; 161.3 mm (6.4 in) in 1930.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Washington had a mean temperature of 10.1 C (50.2 F) and 888.6 mm (35.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Piper City (United States, 301 km away), Tiskilwa 2 SE (United States, 187 km away) and General Wayne A Downing Intl A (United States, 183 km away).

Climate twins of Washington: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Piper CityUnited States301 km (187 mi)10.3 C (50.5 F)867.1 mm (34.1 in)0.62
Tiskilwa 2 SEUnited States187 km (116 mi)10.0 C (50.0 F)912.3 mm (35.9 in)0.63
General Wayne A Downing Intl AUnited States183 km (114 mi)10.2 C (50.4 F)921.4 mm (36.3 in)0.69

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Washington standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Washington threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).