Built 2026-10-17 (17 October 2026)

Williamsburg 1E Weather Records (USC00139067)

Record envelope, standing records and threshold days for Williamsburg 1E (USC00139067), Iowa, United States, with 134 years of record.

Key Facts for Williamsburg 1E

  • Williamsburg 1E (USC00139067) is a weather station in Iowa, United States at 41.66 latitude and -92.00 longitude, 238 m (780 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Williamsburg 1E still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Williamsburg 1E set a daily record high maximum temperature of 31.7 C (89.1 F) on 12 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, 41.66 latitude, -92.00 longitude.
  • Elevation: 238 m (780 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

8 days at or beyond a record
Daily record high and record low at Williamsburg 1E, with 2026 drawn through them The band shows the record high and record low for each calendar day at Williamsburg 1E. The lines show the 2026 daily maximum and minimum. 8 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 Williamsburg 1E. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Williamsburg 1E, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan19.4 C (66.9 F)-35.0 C (-31.0 F)14.4 C (57.9 F)-26.1 C (-15.0 F)
Feb25.0 C (77.0 F)-35.0 C (-31.0 F)20.6 C (69.1 F)-16.7 C (1.9 F)
Mar32.8 C (91.0 F)-31.7 C (-25.1 F)32.8 C (91.0 F)-16.7 C (1.9 F)
Apr33.9 C (93.0 F)-15.0 C (5.0 F)30.0 C (86.0 F)-3.3 C (26.1 F)
May40.0 C (104.0 F)-5.0 C (23.0 F)32.2 C (90.0 F)-1.7 C (28.9 F)
Jun42.2 C (108.0 F)1.7 C (35.1 F)33.9 C (93.0 F)8.9 C (48.0 F)
Jul43.3 C (109.9 F)2.2 C (36.0 F)35.6 C (96.1 F)10.6 C (51.1 F)
Aug43.9 C (111.0 F)4.4 C (39.9 F)33.3 C (91.9 F)11.1 C (52.0 F)
Sep39.4 C (102.9 F)-3.9 C (25.0 F)36.7 C (98.1 F)8.3 C (46.9 F)
Oct36.1 C (97.0 F)-19.4 C (-2.9 F)31.7 C (89.1 F)4.4 C (39.9 F)
Nov27.2 C (81.0 F)-24.4 C (-11.9 F)n/an/a
Dec23.3 C (73.9 F)-33.3 C (-27.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Williamsburg 1E by the year they were set 1,464 records at Williamsburg 1E still stand. 1934 holds the most, with 47. 02040601893: 111894: 41895: 201916: 141917: 241918: 281919: 121920: 81921: 111922: 81923: 151924: 181925: 311926: 161927: 181928: 131929: 231930: 341931: 211932: 81933: 241934: 471935: 71936: 411937: 111938: 161939: 211940: 111941: 91942: 141943: 131944: 81945: 81946: 111947: 131948: 101949: 121950: 151951: 111952: 141953: 181954: 51955: 91956: 81957: 51958: 81959: 111960: 161961: 71962: 141963: 181964: 121965: 161966: 111967: 151968: 91969: 41970: 151971: 61972: 131973: 91974: 81975: 111976: 131977: 151978: 71979: 91980: 71981: 141982: 131983: 201984: 81985: 121986: 131987: 131988: 131989: 151990: 151991: 141992: 131993: 61994: 81995: 51996: 101997: 101998: 141999: 102000: 162001: 92002: 92003: 102004: 92005: 102006: 132007: 102008: 52009: 132010: 12011: 62012: 232013: 142014: 102015: 152016: 32017: 122018: 162019: 132020: 82021: 132022: 102023: 92024: 122025: 62026: 111893192519371949196119731985199720092021
1,464 records at Williamsburg 1E still stand. 1934 holds the most, with 47.
Standing records at Williamsburg 1E by the year they were set
Year setStanding records
189311
18944
189520
191614
191724
191828
191912
19208
192111
19228
192315
192418
192531
192616
192718
192813
192923
193034
193121
19328
193324
193447
19357
193641
193711
193816
193921
194011
19419
194214
194313
19448
19458
194611
194713
194810
194912
195015
195111
195214
195318
19545
19559
19568
19575
19588
195911
196016
19617
196214
196318
196412
196516
196611
196715
19689
19694
197015
19716
197213
19739
19748
197511
197613
197715
19787
19799
19807
198114
198213
198320
19848
198512
198613
198713
198813
198915
199015
199114
199213
19936
19948
19955
199610
199710
199814
199910
200016
20019
20029
200310
20049
200510
200613
200710
20085
200913
20101
20116
201223
201314
201410
201515
20163
201712
201816
201913
20208
202113
202210
20239
202412
20256
202611

All-Time Record Progression

7 new records
When Williamsburg 1E set new all-time records 7 all-time records were set at Williamsburg 1E between 15 June 1982 and 2 February 2011. Each dot is a new record. Record daily precipitationRecord high minimum temperatureRecord low maximum temperatureRecord low minimum temperatureRecord daily snowfall15 June 1982: Record daily precipitation 156.2 mm (6.1 in)17 August 1983: Record high minimum temperature 27.8 C (82.0 F)24 December 1983: Record low maximum temperature -24.4 C (-11.9 F)22 December 1989: Record low maximum temperature -25.0 C (-13.0 F)3 February 1996: Record low maximum temperature -26.1 C (-15.0 F)4 February 1996: Record low minimum temperature -35.0 C (-31.0 F)2 February 2011: Record daily snowfall 36.8 cm (14.5 in)198519901995200020052010
7 all-time records were set at Williamsburg 1E between 15 June 1982 and 2 February 2011. Each dot is a new record.
When Williamsburg 1E set new all-time records
DateKindDetail
1982-06-15Record daily precipitationRecord daily precipitation 156.2 mm (6.1 in)
1983-08-17Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)
1983-12-24Record low maximum temperatureRecord low maximum temperature -24.4 C (-11.9 F)
1989-12-22Record low maximum temperatureRecord low maximum temperature -25.0 C (-13.0 F)
1996-02-03Record low maximum temperatureRecord low maximum temperature -26.1 C (-15.0 F)
1996-02-04Record low minimum temperatureRecord low minimum temperature -35.0 C (-31.0 F)
2011-02-02Record daily snowfallRecord daily snowfall 36.8 cm (14.5 in)

Wettest Day of Each Month

Jun: 156.2 mm (6.1 in)
Record daily precipitation for each month at Williamsburg 1E The wettest day on record for each calendar month at Williamsburg 1E. The most was 156.2 mm (6.1 in) on 15 June 1982. 050100150200 Jan: 42.7 mm (1.7 in), 12 January 1960 Jan Feb: 55.6 mm (2.2 in), 9 February 2001 Feb Mar: 72.6 mm (2.9 in), 25 March 1945 Mar Apr: 137.2 mm (5.4 in), 18 April 2013 Apr May: 136.7 mm (5.4 in), 10 May 1996 May Jun: 156.2 mm (6.1 in), 15 June 1982 Jun Jul: 132.1 mm (5.2 in), 24 July 1924 Jul Aug: 109.2 mm (4.3 in), 14 August 1986 Aug Sep: 126.2 mm (5.0 in), 7 September 1927 Sep Oct: 92.7 mm (3.6 in), 6 October 2018 Oct Nov: 76.2 mm (3.0 in), 17 November 1952 Nov Dec: 48.3 mm (1.9 in), 15 December 1971 Dec
The wettest day on record for each calendar month at Williamsburg 1E. The most was 156.2 mm (6.1 in) on 15 June 1982.
Record daily precipitation for each month at Williamsburg 1E
MonthRecord daily precipitation (mm)Date
Jan42.7 mm (1.7 in)12 January 1960
Feb55.6 mm (2.2 in)9 February 2001
Mar72.6 mm (2.9 in)25 March 1945
Apr137.2 mm (5.4 in)18 April 2013
May136.7 mm (5.4 in)10 May 1996
Jun156.2 mm (6.1 in)15 June 1982
Jul132.1 mm (5.2 in)24 July 1924
Aug109.2 mm (4.3 in)14 August 1986
Sep126.2 mm (5.0 in)7 September 1927
Oct92.7 mm (3.6 in)6 October 2018
Nov76.2 mm (3.0 in)17 November 1952
Dec48.3 mm (1.9 in)15 December 1971

Period of Record Coverage

1893 to 2026
Days with data per year at Williamsburg 1E 114 years of record at Williamsburg 1E, 1893 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1915, 1950, 1951, 1991, 2002, 2008 and others. 1893: 30 of 365 days1895: 287 of 365 days1915: 31 of 365 days1916: 363 of 366 days1917: 363 of 365 days1918: 363 of 365 days1919: 363 of 365 days1920: 365 of 366 days1921: 363 of 365 days1922: 365 of 365 days1923: 361 of 365 days1924: 360 of 366 days1925: 362 of 365 days1926: 346 of 365 days1927: 361 of 365 days1928: 365 of 366 days1929: 361 of 365 days1930: 354 of 365 days1931: 361 of 365 days1932: 359 of 366 days1933: 362 of 365 days1934: 363 of 365 days1935: 361 of 365 days1936: 363 of 366 days1937: 362 of 365 days1938: 361 of 365 days1939: 363 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 363 of 365 days1943: 365 of 365 days1944: 362 of 366 days1945: 362 of 365 days1946: 362 of 365 days1947: 358 of 365 days1948: 340 of 366 days1949: 364 of 365 days1950: 325 of 365 days1951: 271 of 365 days1952: 366 of 366 days1953: 360 of 365 days1954: 360 of 365 days1955: 360 of 365 days1956: 358 of 366 days1957: 357 of 365 days1958: 357 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 363 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 364 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 363 of 365 days1976: 363 of 366 days1977: 363 of 365 days1978: 364 of 365 days1979: 364 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 355 of 365 days1983: 362 of 365 days1984: 361 of 366 days1985: 359 of 365 days1986: 358 of 365 days1987: 351 of 365 days1988: 365 of 366 days1989: 365 of 365 days1990: 353 of 365 days1991: 278 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 355 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 359 of 365 days2000: 366 of 366 days2001: 363 of 365 days2002: 280 of 365 days2003: 342 of 365 days2004: 356 of 366 days2005: 344 of 365 days2006: 355 of 365 days2007: 353 of 365 days2008: 263 of 366 days2009: 358 of 365 days2010: 361 of 365 days2011: 359 of 365 days2012: 366 of 366 days2013: 333 of 365 days2014: 183 of 365 days2015: 360 of 365 days2016: 364 of 366 days2017: 355 of 365 days2018: 353 of 365 days2019: 359 of 365 days2020: 355 of 366 days2021: 360 of 365 days2022: 357 of 365 days2023: 362 of 365 days2024: 362 of 366 days2025: 358 of 365 days2026: 280 of 365 days19201935195019651980199520102025
114 years of record at Williamsburg 1E, 1893 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1915, 1950, 1951, 1991, 2002, 2008 and others.
Days with data per year at Williamsburg 1E
YearDays with dataShare of yearComplete
1893308%No
189528779%No
1915318%No
191636399%Yes
191736399%Yes
191836399%Yes
191936399%Yes
1920365100%Yes
192136399%Yes
1922365100%Yes
192336199%Yes
192436098%Yes
192536299%Yes
192634695%Yes
192736199%Yes
1928365100%Yes
192936199%Yes
193035497%Yes
193136199%Yes
193235998%Yes
193336299%Yes
193436399%Yes
193536199%Yes
193636399%Yes
193736299%Yes
193836199%Yes
193936399%Yes
1940366100%Yes
1941365100%Yes
194236399%Yes
1943365100%Yes
194436299%Yes
194536299%Yes
194636299%Yes
194735898%Yes
194834093%Yes
1949364100%Yes
195032589%No
195127174%No
1952366100%Yes
195336099%Yes
195436099%Yes
195536099%Yes
195635898%Yes
195735798%Yes
195835798%Yes
1959364100%Yes
1960366100%Yes
1961364100%Yes
1962365100%Yes
1963364100%Yes
1964366100%Yes
196536399%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969364100%Yes
1970365100%Yes
1971365100%Yes
197236499%Yes
197336399%Yes
1974364100%Yes
197536399%Yes
197636399%Yes
197736399%Yes
1978364100%Yes
1979364100%Yes
1980365100%Yes
1981365100%Yes
198235597%Yes
198336299%Yes
198436199%Yes
198535998%Yes
198635898%Yes
198735196%Yes
1988365100%Yes
1989365100%Yes
199035397%Yes
199127876%No
1992365100%Yes
1993365100%Yes
199435597%Yes
1995365100%Yes
1996365100%Yes
1997365100%Yes
1998365100%Yes
199935998%Yes
2000366100%Yes
200136399%Yes
200228077%No
200334294%Yes
200435697%Yes
200534494%Yes
200635597%Yes
200735397%Yes
200826372%No
200935898%Yes
201036199%Yes
201135998%Yes
2012366100%Yes
201333391%Yes
201418350%No
201536099%Yes
201636499%Yes
201735597%Yes
201835397%Yes
201935998%Yes
202035597%Yes
202136099%Yes
202235798%Yes
202336299%Yes
202436299%Yes
202535898%Yes
202628077%No

Latest Records

20
Latest records at Williamsburg 1E
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Williamsburg 1E, USdaily high max (Provisional)31.7 C (89.1 F)0.6 C (1.1 F)51 years25 of 100 (Routine)
12 October 2026Williamsburg 1E, USdaily high min (Tie, Provisional)16.1 C (61.0 F)tie97 years9 of 100 (Routine)
1 October 2026Williamsburg 1E, USdaily rain (Provisional)27.2 mm (1.1 in)1.3 mm (0.05 in)64 years30 of 100 (Routine)
15 September 2026Williamsburg 1E, USdaily rain (Provisional)62.5 mm (2.5 in)0.3 mm (0.01 in)56 years26 of 100 (Routine)
9 September 2026Williamsburg 1E, USdaily rain (Provisional)62.2 mm (2.4 in)11.4 mm (0.4 in)36 years28 of 100 (Routine)
4 September 2026Williamsburg 1E, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)104 years42 of 100 (Notable)
2 September 2026Williamsburg 1E, USdaily high min (Tie, Provisional)22.8 C (73.0 F)tie25 years4 of 100 (Routine)
1 September 2026Williamsburg 1E, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie68 years7 of 100 (Routine)
22 June 2026Williamsburg 1E, USdaily low max16.7 C (62.1 F)3.3 C (5.9 F)75 years39 of 100 (Notable)
15 April 2026Williamsburg 1E, USdaily high max (Tie)30.0 C (86.0 F)tie1 year2 of 100 (Routine)
14 April 2026Williamsburg 1E, USdaily high min16.1 C (61.0 F)0.5 C (0.9 F)84 years35 of 100 (Notable)
31 March 2026Williamsburg 1E, USdaily high max30.0 C (86.0 F)2.8 C (5.0 F)40 years25 of 100 (Routine)
22 March 2026Williamsburg 1E, USmonthly high max32.8 C (91.0 F)1.7 C (3.1 F)39 years33 of 100 (Routine)
17 March 2026Williamsburg 1E, USdaily low min-16.7 C (1.9 F)1.1 C (2.0 F)84 years36 of 100 (Notable)
17 March 2026Williamsburg 1E, USdaily low max-7.2 C (19.0 F)0.5 C (0.9 F)84 years35 of 100 (Notable)
10 March 2026Williamsburg 1E, USdaily high max23.9 C (75.0 F)2.8 C (5.0 F)108 years43 of 100 (Notable)
17 February 2026Williamsburg 1E, USdaily high max20.6 C (69.1 F)1.2 C (2.2 F)44 years24 of 100 (Routine)
25 January 2026Williamsburg 1E, USdaily low max-16.7 C (1.9 F)0.6 C (1.1 F)90 years37 of 100 (Notable)
24 January 2026Williamsburg 1E, USdaily low max-21.1 C (-6.0 F)2.2 C (4.0 F)90 years40 of 100 (Notable)
9 January 2026Williamsburg 1E, USdaily rain21.6 mm (0.9 in)5.9 mm (0.23 in)96 years20 of 100 (Routine)

Climate Trend

98 complete years, 1916 to 2025
Annual mean temperature at Williamsburg 1E as warming stripes, 1916 to 2025 One stripe for each of 98 complete years at Williamsburg 1E, 1916 to 2025. Blue stripes are years cooler than the station's own mean of 9.6 C (49.3 F); red stripes are warmer. The coolest year was 1917, at 7.5 C (45.4 F), and the warmest was 1931, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.6 C (4.7 F). 1916: 8.9 C, -0.7 C from the station mean1917: 7.5 C, -2.1 C from the station mean1918: 9.7 C, +0.1 C from the station mean1919: 9.4 C, -0.2 C from the station mean1920: 9.0 C, -0.6 C from the station mean1921: 11.6 C, +2.0 C from the station mean1922: 10.5 C, +0.9 C from the station mean1923: 9.4 C, -0.3 C from the station mean1924: 7.9 C, -1.7 C from the station mean1925: 8.7 C, -0.9 C from the station mean1926: 9.0 C, -0.6 C from the station mean1927: 9.2 C, -0.4 C from the station mean1928: 9.6 C, 0.0 C from the station mean1930: 10.6 C, +0.9 C from the station mean1931: 12.2 C, +2.5 C from the station mean1932: 9.8 C, +0.1 C from the station mean1933: 11.0 C, +1.4 C from the station mean1934: 11.1 C, +1.5 C from the station mean1935: 9.2 C, -0.4 C from the station mean1936: 9.0 C, -0.6 C from the station mean1937: 8.5 C, -1.1 C from the station mean1938: 11.0 C, +1.4 C from the station mean1939: 10.8 C, +1.2 C from the station mean1940: 9.5 C, -0.2 C from the station mean1941: 11.1 C, +1.5 C from the station mean1942: 9.9 C, +0.3 C from the station mean1943: 9.0 C, -0.6 C from the station mean1944: 10.1 C, +0.5 C from the station mean1945: 9.2 C, -0.4 C from the station mean1946: 10.8 C, +1.2 C from the station mean1947: 9.8 C, +0.2 C from the station mean1949: 9.8 C, +0.2 C from the station mean1952: 9.7 C, +0.1 C from the station mean1953: 10.5 C, +0.9 C from the station mean1954: 10.4 C, +0.8 C from the station mean1955: 9.6 C, -0.1 C from the station mean1956: 9.8 C, +0.2 C from the station mean1958: 9.1 C, -0.5 C from the station mean1959: 9.4 C, -0.2 C from the station mean1960: 8.9 C, -0.7 C from the station mean1961: 9.4 C, -0.2 C from the station mean1962: 9.1 C, -0.5 C from the station mean1963: 9.6 C, 0.0 C from the station mean1964: 10.3 C, +0.7 C from the station mean1965: 9.3 C, -0.3 C from the station mean1966: 9.0 C, -0.6 C from the station mean1967: 9.3 C, -0.3 C from the station mean1968: 10.0 C, +0.4 C from the station mean1969: 9.2 C, -0.4 C from the station mean1970: 9.6 C, 0.0 C from the station mean1971: 10.0 C, +0.4 C from the station mean1972: 8.8 C, -0.8 C from the station mean1973: 10.7 C, +1.1 C from the station mean1974: 9.8 C, +0.2 C from the station mean1975: 10.1 C, +0.5 C from the station mean1976: 9.6 C, 0.0 C from the station mean1977: 10.2 C, +0.6 C from the station mean1978: 8.6 C, -1.0 C from the station mean1979: 8.6 C, -1.0 C from the station mean1980: 10.1 C, +0.4 C from the station mean1981: 10.5 C, +0.9 C from the station mean1982: 9.0 C, -0.6 C from the station mean1983: 10.2 C, +0.6 C from the station mean1984: 10.0 C, +0.4 C from the station mean1985: 9.0 C, -0.6 C from the station mean1986: 10.3 C, +0.7 C from the station mean1987: 11.5 C, +1.9 C from the station mean1988: 10.4 C, +0.8 C from the station mean1989: 8.2 C, -1.4 C from the station mean1990: 9.7 C, +0.1 C from the station mean1992: 9.0 C, -0.6 C from the station mean1993: 8.2 C, -1.4 C from the station mean1994: 8.8 C, -0.8 C from the station mean1995: 8.8 C, -0.9 C from the station mean1996: 7.8 C, -1.8 C from the station mean1997: 8.7 C, -0.9 C from the station mean1998: 11.0 C, +1.4 C from the station mean1999: 10.1 C, +0.5 C from the station mean2000: 9.6 C, -0.1 C from the station mean2001: 9.8 C, +0.2 C from the station mean2003: 8.4 C, -1.2 C from the station mean2004: 8.9 C, -0.7 C from the station mean2006: 10.1 C, +0.5 C from the station mean2007: 9.5 C, -0.1 C from the station mean2009: 8.2 C, -1.5 C from the station mean2010: 8.8 C, -0.8 C from the station mean2011: 9.1 C, -0.5 C from the station mean2012: 10.7 C, +1.1 C from the station mean2016: 10.6 C, +1.0 C from the station mean2017: 10.1 C, +0.5 C from the station mean2018: 8.8 C, -0.8 C from the station mean2019: 8.3 C, -1.4 C from the station mean2020: 9.4 C, -0.2 C from the station mean2021: 9.6 C, 0.0 C from the station mean2022: 8.4 C, -1.2 C from the station mean2023: 10.4 C, +0.8 C from the station mean2024: 10.8 C, +1.2 C from the station mean2025: 9.8 C, +0.2 C from the station mean19161930194019501960197019801990200020102020
One stripe for each of 98 complete years at Williamsburg 1E, 1916 to 2025. Blue stripes are years cooler than the station's own mean of 9.6 C (49.3 F); red stripes are warmer. The coolest year was 1917, at 7.5 C (45.4 F), and the warmest was 1931, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.6 C (4.7 F).
Annual mean temperature at Williamsburg 1E as warming stripes, 1916 to 2025
YearAnnual mean temperatureDifference from the station mean
19168.9 C-0.74 C
19177.5 C-2.13 C
19189.7 C+0.08 C
19199.4 C-0.24 C
19209.0 C-0.56 C
192111.6 C+2.02 C
192210.5 C+0.94 C
19239.4 C-0.25 C
19247.9 C-1.68 C
19258.7 C-0.86 C
19269.0 C-0.59 C
19279.2 C-0.39 C
19289.6 C-0.03 C
193010.6 C+0.95 C
193112.2 C+2.55 C
19329.8 C+0.15 C
193311.0 C+1.38 C
193411.1 C+1.49 C
19359.2 C-0.39 C
19369.0 C-0.64 C
19378.5 C-1.14 C
193811.0 C+1.40 C
193910.8 C+1.22 C
19409.5 C-0.15 C
194111.1 C+1.48 C
19429.9 C+0.33 C
19439.0 C-0.56 C
194410.1 C+0.48 C
19459.2 C-0.36 C
194610.8 C+1.22 C
19479.8 C+0.21 C
19499.8 C+0.16 C
19529.7 C+0.13 C
195310.5 C+0.87 C
195410.4 C+0.83 C
19559.6 C-0.05 C
19569.8 C+0.20 C
19589.1 C-0.50 C
19599.4 C-0.18 C
19608.9 C-0.73 C
19619.4 C-0.22 C
19629.1 C-0.46 C
19639.6 C-0.01 C
196410.3 C+0.69 C
19659.3 C-0.31 C
19669.0 C-0.59 C
19679.3 C-0.27 C
196810.0 C+0.37 C
19699.2 C-0.39 C
19709.6 C0.00 C
197110.0 C+0.43 C
19728.8 C-0.84 C
197310.7 C+1.09 C
19749.8 C+0.18 C
197510.1 C+0.50 C
19769.6 C-0.02 C
197710.2 C+0.58 C
19788.6 C-1.03 C
19798.6 C-0.98 C
198010.1 C+0.45 C
198110.5 C+0.91 C
19829.0 C-0.63 C
198310.2 C+0.57 C
198410.0 C+0.44 C
19859.0 C-0.62 C
198610.3 C+0.72 C
198711.5 C+1.90 C
198810.4 C+0.84 C
19898.2 C-1.39 C
19909.7 C+0.14 C
19929.0 C-0.57 C
19938.2 C-1.40 C
19948.8 C-0.82 C
19958.8 C-0.85 C
19967.8 C-1.81 C
19978.7 C-0.93 C
199811.0 C+1.36 C
199910.1 C+0.47 C
20009.6 C-0.05 C
20019.8 C+0.16 C
20038.4 C-1.21 C
20048.9 C-0.69 C
200610.1 C+0.51 C
20079.5 C-0.11 C
20098.2 C-1.45 C
20108.8 C-0.77 C
20119.1 C-0.52 C
201210.7 C+1.11 C
201610.6 C+1.02 C
201710.1 C+0.46 C
20188.8 C-0.84 C
20198.3 C-1.35 C
20209.4 C-0.20 C
20219.6 C+0.04 C
20228.4 C-1.16 C
202310.4 C+0.77 C
202410.8 C+1.17 C
20259.8 C+0.17 C

The fitted trend in annual mean temperature here over 1916 to 2025 is -0.03 C (-0.09 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.16 to 0.05) per decade. The slope is a straight line fitted to 98 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Williamsburg 1E
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.03 C (-0.09 to 0.03) per decade-0.05 F (-0.16 to 0.05) per decade1916 to 202598Not clearly different from zero
Mean daily maximum-0.04 C (-0.11 to 0.02) per decade-0.08 F (-0.19 to 0.04) per decade1916 to 202598Not clearly different from zero
Mean daily minimum-0.02 C (-0.08 to 0.04) per decade-0.03 F (-0.14 to 0.08) per decade1916 to 202598Not 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 Williamsburg 1E: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)193436.1 C (97.0 F)114
Coldest night (TNn)-35.0 C (-31.0 F)1996-26.1 C (-15.0 F)114
Wettest day (Rx1day)156.2 mm (6.1 in)198264.3 mm (2.5 in)115
Wettest five days (Rx5day)196.5 mm (7.7 in)199097.6 mm (3.8 in)114
Longest dry spell (CDD)63 days195223 days115

Hottest day (TXx)

Hottest day (TXx) at Williamsburg 1E by year The hottest day of the year at Williamsburg 1E, 1893 to 2026. The record is 43.9 C (111.0 F) in 1934, marked on the chart; the median year is 36.1 C (97.0 F). 010203040501900192019401960198020002020Record: 43.9 C (111.0 F) in 1934
The hottest day of the year at Williamsburg 1E, 1893 to 2026. The record is 43.9 C (111.0 F) in 1934, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Williamsburg 1E by year
YearHottest day (TXx)
189315.6 C (60.1 F)
1894n/a
189534.4 C (93.9 F)
19158.3 C (46.9 F)
191637.8 C (100.0 F)
191737.8 C (100.0 F)
191839.4 C (102.9 F)
191936.7 C (98.1 F)
192037.2 C (99.0 F)
192137.8 C (100.0 F)
192238.9 C (102.0 F)
192337.2 C (99.0 F)
192435.0 C (95.0 F)
192536.7 C (98.1 F)
192636.7 C (98.1 F)
192736.7 C (98.1 F)
192834.4 C (93.9 F)
192934.4 C (93.9 F)
193042.8 C (109.0 F)
193140.6 C (105.1 F)
193237.8 C (100.0 F)
193340.6 C (105.1 F)
193443.9 C (111.0 F)
193536.7 C (98.1 F)
193643.3 C (109.9 F)
193736.7 C (98.1 F)
193836.1 C (97.0 F)
193938.3 C (100.9 F)
194043.3 C (109.9 F)
194139.4 C (102.9 F)
194235.6 C (96.1 F)
194333.9 C (93.0 F)
194435.0 C (95.0 F)
194535.0 C (95.0 F)
194634.4 C (93.9 F)
194737.8 C (100.0 F)
194837.2 C (99.0 F)
194934.4 C (93.9 F)
195032.8 C (91.0 F)
195136.1 C (97.0 F)
195236.1 C (97.0 F)
195337.2 C (99.0 F)
195436.7 C (98.1 F)
195537.8 C (100.0 F)
195636.1 C (97.0 F)
195737.2 C (99.0 F)
195833.9 C (93.0 F)
195935.0 C (95.0 F)
196036.7 C (98.1 F)
196135.0 C (95.0 F)
196235.6 C (96.1 F)
196336.7 C (98.1 F)
196437.2 C (99.0 F)
196535.6 C (96.1 F)
196636.7 C (98.1 F)
196733.9 C (93.0 F)
196836.7 C (98.1 F)
196933.9 C (93.0 F)
197036.1 C (97.0 F)
197135.6 C (96.1 F)
197235.0 C (95.0 F)
197335.0 C (95.0 F)
197437.2 C (99.0 F)
197536.7 C (98.1 F)
197635.0 C (95.0 F)
197739.4 C (102.9 F)
197835.0 C (95.0 F)
197935.0 C (95.0 F)
198037.2 C (99.0 F)
198135.0 C (95.0 F)
198235.0 C (95.0 F)
198338.9 C (102.0 F)
198436.7 C (98.1 F)
198536.7 C (98.1 F)
198634.4 C (93.9 F)
198737.2 C (99.0 F)
198840.6 C (105.1 F)
198936.7 C (98.1 F)
199034.4 C (93.9 F)
199135.6 C (96.1 F)
199232.8 C (91.0 F)
199332.8 C (91.0 F)
199433.9 C (93.0 F)
199537.2 C (99.0 F)
199635.0 C (95.0 F)
199736.7 C (98.1 F)
199835.0 C (95.0 F)
199937.2 C (99.0 F)
200036.7 C (98.1 F)
200137.8 C (100.0 F)
200234.4 C (93.9 F)
200335.6 C (96.1 F)
200432.2 C (90.0 F)
200536.7 C (98.1 F)
200635.6 C (96.1 F)
200732.2 C (90.0 F)
200828.9 C (84.0 F)
200933.9 C (93.0 F)
201033.3 C (91.9 F)
201137.2 C (99.0 F)
201240.0 C (104.0 F)
201338.3 C (100.9 F)
201433.9 C (93.0 F)
201535.0 C (95.0 F)
201635.0 C (95.0 F)
201735.0 C (95.0 F)
201836.7 C (98.1 F)
201935.0 C (95.0 F)
202036.1 C (97.0 F)
202135.6 C (96.1 F)
202237.2 C (99.0 F)
202337.8 C (100.0 F)
202436.1 C (97.0 F)
202536.1 C (97.0 F)
202636.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Williamsburg 1E by year The coldest night of the year at Williamsburg 1E, 1893 to 2026. The record is -35.0 C (-31.0 F) in 1996, marked on the chart; the median year is -26.1 C (-15.0 F). -40-200201900192019401960198020002020Record: -35.0 C (-31.0 F) in 1996
The coldest night of the year at Williamsburg 1E, 1893 to 2026. The record is -35.0 C (-31.0 F) in 1996, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Williamsburg 1E by year
YearColdest night (TNn)
1893n/a
18947.2 C (45.0 F)
1895-24.4 C (-11.9 F)
1915-18.9 C (-2.0 F)
1916-32.2 C (-26.0 F)
1917-30.6 C (-23.1 F)
1918-32.8 C (-27.0 F)
1919-32.2 C (-26.0 F)
1920-24.4 C (-11.9 F)
1921-26.7 C (-16.1 F)
1922-25.6 C (-14.1 F)
1923-26.1 C (-15.0 F)
1924-33.3 C (-27.9 F)
1925-27.2 C (-17.0 F)
1926-23.3 C (-9.9 F)
1927-23.3 C (-9.9 F)
1928-24.4 C (-11.9 F)
1929-32.2 C (-26.0 F)
1930-33.3 C (-27.9 F)
1931-21.7 C (-7.1 F)
1932-27.2 C (-17.0 F)
1933-31.7 C (-25.1 F)
1934-24.4 C (-11.9 F)
1935-26.1 C (-15.0 F)
1936-33.9 C (-29.0 F)
1937-23.3 C (-9.9 F)
1938-22.8 C (-9.0 F)
1939-22.2 C (-8.0 F)
1940-28.3 C (-18.9 F)
1941-21.7 C (-7.1 F)
1942-27.8 C (-18.0 F)
1943-27.2 C (-17.0 F)
1944-23.3 C (-9.9 F)
1945-23.9 C (-11.0 F)
1946-23.3 C (-9.9 F)
1947-27.8 C (-18.0 F)
1948-24.4 C (-11.9 F)
1949-26.1 C (-15.0 F)
1950-23.9 C (-11.0 F)
1951-28.9 C (-20.0 F)
1952-24.4 C (-11.9 F)
1953-26.1 C (-15.0 F)
1954-25.0 C (-13.0 F)
1955-28.9 C (-20.0 F)
1956-29.4 C (-20.9 F)
1957-32.2 C (-26.0 F)
1958-28.9 C (-20.0 F)
1959-28.9 C (-20.0 F)
1960-27.8 C (-18.0 F)
1961-28.3 C (-18.9 F)
1962-31.7 C (-25.1 F)
1963-32.2 C (-26.0 F)
1964-22.8 C (-9.0 F)
1965-26.7 C (-16.1 F)
1966-31.1 C (-24.0 F)
1967-26.1 C (-15.0 F)
1968-26.7 C (-16.1 F)
1969-24.4 C (-11.9 F)
1970-30.6 C (-23.1 F)
1971-26.1 C (-15.0 F)
1972-30.6 C (-23.1 F)
1973-23.9 C (-11.0 F)
1974-33.3 C (-27.9 F)
1975-24.4 C (-11.9 F)
1976-26.1 C (-15.0 F)
1977-31.7 C (-25.1 F)
1978-25.6 C (-14.1 F)
1979-30.0 C (-22.0 F)
1980-22.8 C (-9.0 F)
1981-26.1 C (-15.0 F)
1982-31.1 C (-24.0 F)
1983-29.4 C (-20.9 F)
1984-27.2 C (-17.0 F)
1985-32.8 C (-27.0 F)
1986-26.1 C (-15.0 F)
1987-20.6 C (-5.1 F)
1988-26.7 C (-16.1 F)
1989-30.6 C (-23.1 F)
1990-24.4 C (-11.9 F)
1991-25.6 C (-14.1 F)
1992-21.1 C (-6.0 F)
1993-26.1 C (-15.0 F)
1994-32.2 C (-26.0 F)
1995-25.0 C (-13.0 F)
1996-35.0 C (-31.0 F)
1997-25.0 C (-13.0 F)
1998-25.0 C (-13.0 F)
1999-32.8 C (-27.0 F)
2000-27.2 C (-17.0 F)
2001-28.3 C (-18.9 F)
2002-22.2 C (-8.0 F)
2003-22.8 C (-9.0 F)
2004-24.4 C (-11.9 F)
2005-27.2 C (-17.0 F)
2006-26.1 C (-15.0 F)
2007-25.0 C (-13.0 F)
2008-27.2 C (-17.0 F)
2009-33.3 C (-27.9 F)
2010-28.3 C (-18.9 F)
2011-25.0 C (-13.0 F)
2012-20.6 C (-5.1 F)
2013-23.3 C (-9.9 F)
2014-16.7 C (1.9 F)
2015-27.8 C (-18.0 F)
2016-25.6 C (-14.1 F)
2017-27.2 C (-17.0 F)
2018-30.6 C (-23.1 F)
2019-35.0 C (-31.0 F)
2020-23.3 C (-9.9 F)
2021-27.8 C (-18.0 F)
2022-25.0 C (-13.0 F)
2023-21.1 C (-6.0 F)
2024-27.8 C (-18.0 F)
2025-25.0 C (-13.0 F)
2026-26.1 C (-15.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Williamsburg 1E by year The wettest day of the year at Williamsburg 1E, 1893 to 2026. The record is 156.2 mm (6.1 in) in 1982, marked on the chart; the median year is 64.3 mm (2.5 in). 0501001502001900192019401960198020002020Record: 156.2 mm (6.1 in) in 1982
The wettest day of the year at Williamsburg 1E, 1893 to 2026. The record is 156.2 mm (6.1 in) in 1982, marked on the chart; the median year is 64.3 mm (2.5 in).
Wettest day (Rx1day) at Williamsburg 1E by year
YearWettest day (Rx1day)
189380.0 mm (3.1 in)
189431.5 mm (1.2 in)
189554.4 mm (2.1 in)
19155.1 mm (0.20 in)
191645.0 mm (1.8 in)
191770.9 mm (2.8 in)
191891.2 mm (3.6 in)
191980.0 mm (3.1 in)
192038.4 mm (1.5 in)
1921101.6 mm (4.0 in)
192261.5 mm (2.4 in)
192342.9 mm (1.7 in)
1924132.1 mm (5.2 in)
192564.8 mm (2.6 in)
192686.9 mm (3.4 in)
1927126.2 mm (5.0 in)
192887.4 mm (3.4 in)
192958.2 mm (2.3 in)
1930128.3 mm (5.1 in)
193150.8 mm (2.0 in)
193249.8 mm (2.0 in)
193349.3 mm (1.9 in)
193446.7 mm (1.8 in)
193571.4 mm (2.8 in)
193668.6 mm (2.7 in)
193781.3 mm (3.2 in)
193844.2 mm (1.7 in)
193963.0 mm (2.5 in)
194043.2 mm (1.7 in)
194174.9 mm (2.9 in)
194244.2 mm (1.7 in)
194368.6 mm (2.7 in)
194453.3 mm (2.1 in)
194572.6 mm (2.9 in)
194647.5 mm (1.9 in)
194756.6 mm (2.2 in)
194891.4 mm (3.6 in)
194959.7 mm (2.4 in)
1950108.5 mm (4.3 in)
195180.0 mm (3.1 in)
195276.2 mm (3.0 in)
195336.1 mm (1.4 in)
195452.1 mm (2.1 in)
195541.4 mm (1.6 in)
195664.3 mm (2.5 in)
195753.6 mm (2.1 in)
195879.2 mm (3.1 in)
195962.5 mm (2.5 in)
196064.8 mm (2.6 in)
1961108.0 mm (4.3 in)
196299.1 mm (3.9 in)
196350.8 mm (2.0 in)
196466.3 mm (2.6 in)
196594.0 mm (3.7 in)
196662.7 mm (2.5 in)
196780.0 mm (3.1 in)
196834.8 mm (1.4 in)
196971.9 mm (2.8 in)
197071.1 mm (2.8 in)
197157.2 mm (2.3 in)
197277.5 mm (3.1 in)
197338.6 mm (1.5 in)
197464.0 mm (2.5 in)
197531.8 mm (1.3 in)
197664.3 mm (2.5 in)
197781.3 mm (3.2 in)
197857.4 mm (2.3 in)
197957.9 mm (2.3 in)
198074.7 mm (2.9 in)
198171.1 mm (2.8 in)
1982156.2 mm (6.1 in)
198362.7 mm (2.5 in)
198456.9 mm (2.2 in)
198537.6 mm (1.5 in)
1986109.2 mm (4.3 in)
198785.1 mm (3.4 in)
198887.1 mm (3.4 in)
198987.6 mm (3.4 in)
1990134.6 mm (5.3 in)
199145.2 mm (1.8 in)
199266.0 mm (2.6 in)
199376.5 mm (3.0 in)
199437.6 mm (1.5 in)
199539.1 mm (1.5 in)
1996136.7 mm (5.4 in)
199752.3 mm (2.1 in)
199867.3 mm (2.6 in)
199946.0 mm (1.8 in)
200094.2 mm (3.7 in)
200155.6 mm (2.2 in)
200282.8 mm (3.3 in)
200358.9 mm (2.3 in)
200460.5 mm (2.4 in)
200539.6 mm (1.6 in)
200646.5 mm (1.8 in)
200775.4 mm (3.0 in)
200868.6 mm (2.7 in)
200988.1 mm (3.5 in)
201053.8 mm (2.1 in)
201146.2 mm (1.8 in)
201253.6 mm (2.1 in)
2013137.2 mm (5.4 in)
201490.2 mm (3.6 in)
201583.8 mm (3.3 in)
201694.0 mm (3.7 in)
201758.4 mm (2.3 in)
201892.7 mm (3.6 in)
201952.1 mm (2.1 in)
202071.1 mm (2.8 in)
202187.6 mm (3.4 in)
202252.1 mm (2.1 in)
202335.6 mm (1.4 in)
202458.7 mm (2.3 in)
202550.8 mm (2.0 in)
202662.5 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Williamsburg 1E by year The wettest five days of the year at Williamsburg 1E, 1893 to 2026. The record is 196.5 mm (7.7 in) in 1990, marked on the chart; the median year is 97.6 mm (3.8 in). 0501001502001900192019401960198020002020Record: 196.5 mm (7.7 in) in 1990
The wettest five days of the year at Williamsburg 1E, 1893 to 2026. The record is 196.5 mm (7.7 in) in 1990, marked on the chart; the median year is 97.6 mm (3.8 in).
Wettest five days (Rx5day) at Williamsburg 1E by year
YearWettest five days (Rx5day)
189344.2 mm (1.7 in)
1894n/a
189582.5 mm (3.2 in)
19159.9 mm (0.39 in)
191681.9 mm (3.2 in)
191799.8 mm (3.9 in)
1918132.2 mm (5.2 in)
191997.8 mm (3.9 in)
192074.2 mm (2.9 in)
1921140.5 mm (5.5 in)
1922129.3 mm (5.1 in)
192359.2 mm (2.3 in)
1924113.2 mm (4.5 in)
192597.3 mm (3.8 in)
1926123.0 mm (4.8 in)
1927133.1 mm (5.2 in)
1928115.3 mm (4.5 in)
192966.1 mm (2.6 in)
1930152.9 mm (6.0 in)
1931101.4 mm (4.0 in)
193255.6 mm (2.2 in)
193365.0 mm (2.6 in)
193474.4 mm (2.9 in)
1935122.9 mm (4.8 in)
193695.7 mm (3.8 in)
1937126.0 mm (5.0 in)
193855.3 mm (2.2 in)
1939120.6 mm (4.7 in)
194060.3 mm (2.4 in)
1941155.4 mm (6.1 in)
194262.0 mm (2.4 in)
194389.9 mm (3.5 in)
1944125.2 mm (4.9 in)
194580.5 mm (3.2 in)
194692.5 mm (3.6 in)
194785.6 mm (3.4 in)
194892.7 mm (3.6 in)
194976.8 mm (3.0 in)
1950134.7 mm (5.3 in)
1951128.0 mm (5.0 in)
195297.5 mm (3.8 in)
195367.3 mm (2.6 in)
195479.5 mm (3.1 in)
195564.5 mm (2.5 in)
195677.8 mm (3.1 in)
195766.5 mm (2.6 in)
1958109.0 mm (4.3 in)
195979.7 mm (3.1 in)
1960119.9 mm (4.7 in)
1961146.3 mm (5.8 in)
1962119.4 mm (4.7 in)
196370.9 mm (2.8 in)
1964117.6 mm (4.6 in)
1965152.9 mm (6.0 in)
1966106.5 mm (4.2 in)
196795.0 mm (3.7 in)
196871.9 mm (2.8 in)
1969109.5 mm (4.3 in)
1970147.3 mm (5.8 in)
197176.7 mm (3.0 in)
1972120.7 mm (4.8 in)
197378.2 mm (3.1 in)
1974171.0 mm (6.7 in)
197553.9 mm (2.1 in)
1976137.3 mm (5.4 in)
1977130.6 mm (5.1 in)
1978104.9 mm (4.1 in)
1979121.4 mm (4.8 in)
1980118.9 mm (4.7 in)
1981106.9 mm (4.2 in)
1982172.7 mm (6.8 in)
198395.8 mm (3.8 in)
1984104.6 mm (4.1 in)
198577.9 mm (3.1 in)
1986143.2 mm (5.6 in)
1987162.6 mm (6.4 in)
1988104.6 mm (4.1 in)
1989143.5 mm (5.6 in)
1990196.5 mm (7.7 in)
199183.8 mm (3.3 in)
1992130.0 mm (5.1 in)
1993165.7 mm (6.5 in)
199469.1 mm (2.7 in)
199591.5 mm (3.6 in)
1996185.2 mm (7.3 in)
199767.1 mm (2.6 in)
199885.8 mm (3.4 in)
199950.0 mm (2.0 in)
2000134.3 mm (5.3 in)
200163.5 mm (2.5 in)
2002117.6 mm (4.6 in)
200373.8 mm (2.9 in)
200489.7 mm (3.5 in)
200567.5 mm (2.7 in)
200676.5 mm (3.0 in)
2007122.6 mm (4.8 in)
2008110.2 mm (4.3 in)
2009125.2 mm (4.9 in)
201091.5 mm (3.6 in)
201170.8 mm (2.8 in)
201270.6 mm (2.8 in)
2013159.1 mm (6.3 in)
2014100.9 mm (4.0 in)
201585.8 mm (3.4 in)
201696.5 mm (3.8 in)
201768.5 mm (2.7 in)
2018163.9 mm (6.5 in)
2019100.5 mm (4.0 in)
202098.6 mm (3.9 in)
202197.7 mm (3.8 in)
202255.9 mm (2.2 in)
202344.5 mm (1.8 in)
202488.9 mm (3.5 in)
202582.5 mm (3.2 in)
2026131.9 mm (5.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Williamsburg 1E by year The longest dry spell of the year at Williamsburg 1E, 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 Williamsburg 1E, 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 Williamsburg 1E by year
YearLongest dry spell (CDD)
18935 days
18942 days
189510 days
191514 days
191631 days
191727 days
191827 days
191933 days
192017 days
192115 days
192220 days
192319 days
192422 days
192521 days
192615 days
192720 days
192823 days
192930 days
193017 days
193126 days
193223 days
193333 days
193435 days
193516 days
193620 days
193720 days
193824 days
193925 days
194021 days
194119 days
194231 days
194327 days
194428 days
194516 days
194626 days
194737 days
194832 days
194920 days
195029 days
195113 days
195263 days
195323 days
195428 days
195517 days
195624 days
195729 days
195824 days
195921 days
196026 days
196116 days
196226 days
196335 days
196435 days
196520 days
196624 days
196723 days
196818 days
196922 days
197016 days
197131 days
197222 days
197318 days
197415 days
197534 days
197626 days
197724 days
197825 days
197930 days
198023 days
198131 days
198217 days
198322 days
198421 days
198521 days
198623 days
198748 days
198842 days
198950 days
199017 days
199117 days
199217 days
199327 days
199423 days
199529 days
199618 days
199718 days
199823 days
199937 days
200018 days
200115 days
200242 days
200328 days
200424 days
200524 days
200621 days
200730 days
200814 days
200924 days
201016 days
201123 days
201227 days
201345 days
201419 days
201525 days
201620 days
201719 days
201817 days
201925 days
202024 days
202116 days
202226 days
202330 days
202424 days
202518 days
202625 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

98 years with a frost

Across 98 years with a frost, the median last spring frost at Williamsburg 1E falls on 29 April and the median first autumn frost on 6 October, which leaves a median of 160 days between them.

In 1989 to 2025 the median growing season was 163 days. That is 4 days more than in 1916 to 1946.

Fitted over all years, the growing season changes by +0.8 days per decade at this station.

Frost dates and growing season at Williamsburg 1E
MeasureMedian, all yearsEarliest period (1916 to 1946)Recent period (1989 to 2025)Recent against earliestFitted trend
Last spring frost29 April2 May29 April3 days earlier-0.7 days per decade
First autumn frost6 October8 October8 Octoberno change+0.1 days per decade
Growing days160 days159 days163 days4 days more+0.8 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

99 years, 1916 to 2025

A day with at least 64.1 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 156.8 mm (6.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Williamsburg 1E: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.1 mm (2.5 in)
5 years86.5 mm (3.4 in)
10 years102.2 mm (4.0 in)
25 years123.3 mm (4.9 in)
50 years139.7 mm (5.5 in)
100 years156.8 mm (6.2 in)Longer than the 99 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 99 years of values from 1916 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: 156.2 mm (6.1 in) in 1982; 137.2 mm (5.4 in) in 2013; 136.7 mm (5.4 in) in 1996.

Station Changes

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

Climate Twins

2007 to 2025 against 1961 to 1990

Over 2007 to 2025, Williamsburg 1E had a mean temperature of 9.5 C (49.1 F) and 912.7 mm (35.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Walnut (United States, 200 km away), Galva (United States, 173 km away) and Dixon Wwtp (United States, 207 km away).

Climate twins of Williamsburg 1E: stations whose 1961 to 1990 climate is closest to its 2007 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
WalnutUnited States200 km (124 mi)9.7 C (49.5 F)934.6 mm (36.8 in)0.63
GalvaUnited States173 km (107 mi)9.6 C (49.3 F)936.6 mm (36.9 in)0.64
Dixon WwtpUnited States207 km (129 mi)9.2 C (48.6 F)888.0 mm (35.0 in)0.65

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 Williamsburg 1E standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Williamsburg 1E 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).