Built 2026-10-19 (19 October 2026)

Defiance Weather Records (USC00332098)

Record envelope, standing records and threshold days for Defiance (USC00332098), Ohio, United States, with 134 years of record.

Key Facts for Defiance

  • Defiance (USC00332098) is a weather station in Ohio, United States at 41.28 latitude and -84.38 longitude, 213 m (700 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Defiance still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Defiance set a daily record precipitation of 61.2 mm (2.4 in) on 10 August 2026.

About the Station

  • Location: Ohio, United States, 41.28 latitude, -84.38 longitude.
  • Elevation: 213 m (700 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Defiance, with 2026 drawn through them The band shows the record high and record low for each calendar day at Defiance. The lines show the 2026 daily maximum and minimum. 4 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 Defiance. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Defiance, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-32.2 C (-26.0 F)15.6 C (60.1 F)-22.2 C (-8.0 F)
Feb22.8 C (73.0 F)-30.0 C (-22.0 F)18.3 C (64.9 F)-19.4 C (-2.9 F)
Mar31.7 C (89.1 F)-21.7 C (-7.1 F)26.1 C (79.0 F)-7.8 C (18.0 F)
Apr32.8 C (91.0 F)-15.6 C (3.9 F)27.8 C (82.0 F)-5.0 C (23.0 F)
May37.2 C (99.0 F)-4.4 C (24.1 F)30.0 C (86.0 F)-0.6 C (30.9 F)
Jun41.7 C (107.1 F)1.7 C (35.1 F)33.3 C (91.9 F)7.8 C (46.0 F)
Jul43.9 C (111.0 F)4.4 C (39.9 F)36.7 C (98.1 F)12.2 C (54.0 F)
Aug40.0 C (104.0 F)2.2 C (36.0 F)31.7 C (89.1 F)11.7 C (53.1 F)
Sep37.8 C (100.0 F)-3.3 C (26.1 F)23.9 C (75.0 F)7.2 C (45.0 F)
Oct33.3 C (91.9 F)-10.0 C (14.0 F)n/an/a
Nov27.8 C (82.0 F)-17.8 C (0.0 F)n/an/a
Dec21.1 C (70.0 F)-28.3 C (-18.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Defiance by the year they were set 1,464 records at Defiance still stand. 1895 holds the most, with 40. 0102030401893: 21894: 201895: 401896: 331897: 321898: 101899: 201900: 191901: 111902: 181903: 231904: 151905: 101906: 151907: 141908: 211909: 191910: 161911: 171912: 81925: 191926: 191927: 21928: 281929: 141930: 41931: 271932: 111933: 141934: 261935: 41936: 231937: 71938: 101939: 111940: 101941: 131942: 121943: 91944: 141945: 141946: 141947: 91948: 91949: 101950: 171951: 131952: 51953: 151954: 111955: 81956: 51957: 61958: 91959: 81960: 101961: 41962: 111963: 251964: 181965: 131966: 91967: 131968: 71969: 61970: 101971: 51972: 181973: 41974: 121975: 51976: 101977: 101978: 111979: 111980: 71981: 61982: 191983: 161984: 141985: 101986: 111987: 51988: 151989: 101990: 131991: 191992: 51993: 51994: 101995: 141996: 81997: 51998: 111999: 102000: 152001: 72002: 92003: 62004: 52005: 42006: 72007: 122008: 82009: 52010: 62011: 102012: 292013: 82014: 122015: 92016: 52017: 132018: 142019: 142020: 102021: 72022: 72023: 12024: 82025: 42026: 111893190619311944195719701983199620092022
1,464 records at Defiance still stand. 1895 holds the most, with 40.
Standing records at Defiance by the year they were set
Year setStanding records
18932
189420
189540
189633
189732
189810
189920
190019
190111
190218
190323
190415
190510
190615
190714
190821
190919
191016
191117
19128
192519
192619
19272
192828
192914
19304
193127
193211
193314
193426
19354
193623
19377
193810
193911
194010
194113
194212
19439
194414
194514
194614
19479
19489
194910
195017
195113
19525
195315
195411
19558
19565
19576
19589
19598
196010
19614
196211
196325
196418
196513
19669
196713
19687
19696
197010
19715
197218
19734
197412
19755
197610
197710
197811
197911
19807
19816
198219
198316
198414
198510
198611
19875
198815
198910
199013
199119
19925
19935
199410
199514
19968
19975
199811
199910
200015
20017
20029
20036
20045
20054
20067
200712
20088
20095
20106
201110
201229
20138
201412
20159
20165
201713
201814
201914
202010
20217
20227
20231
20248
20254
202611

All-Time Record Progression

5 new records
When Defiance set new all-time records 5 all-time records were set at Defiance between 9 December 1977 and 22 July 2011. Each dot is a new record. Record snow depthRecord low maximum temperatureRecord high minimum temperature9 December 1977: Record snow depth 38.1 cm (15.0 in)27 January 1978: Record snow depth 48.3 cm (19.0 in)5 February 1978: Record snow depth 53.3 cm (21.0 in)25 December 1983: Record low maximum temperature -23.3 C (-9.9 F)22 July 2011: Record high minimum temperature 26.1 C (79.0 F)1980198519901995200020052010
5 all-time records were set at Defiance between 9 December 1977 and 22 July 2011. Each dot is a new record.
When Defiance set new all-time records
DateKindDetail
1977-12-09Record snow depthRecord snow depth 38.1 cm (15.0 in)
1978-01-27Record snow depthRecord snow depth 48.3 cm (19.0 in)
1978-02-05Record snow depthRecord snow depth 53.3 cm (21.0 in)
1983-12-25Record low maximum temperatureRecord low maximum temperature -23.3 C (-9.9 F)
2011-07-22Record high minimum temperatureRecord high minimum temperature 26.1 C (79.0 F)

Wettest Day of Each Month

Sep: 117.6 mm (4.6 in)
Record daily precipitation for each month at Defiance The wettest day on record for each calendar month at Defiance. The most was 117.6 mm (4.6 in) on 18 September 1907. 050100150 Jan: 49.0 mm (1.9 in), 19 January 1996 Jan Feb: 55.6 mm (2.2 in), 27 February 1997 Feb Mar: 56.9 mm (2.2 in), 14 March 1933 Mar Apr: 104.1 mm (4.1 in), 23 April 1977 Apr May: 88.4 mm (3.5 in), 26 May 2011 May Jun: 81.0 mm (3.2 in), 28 June 1894 Jun Jul: 109.7 mm (4.3 in), 5 July 1901 Jul Aug: 101.6 mm (4.0 in), 15 August 1909 Aug Sep: 117.6 mm (4.6 in), 18 September 1907 Sep Oct: 98.8 mm (3.9 in), 18 October 1988 Oct Nov: 82.0 mm (3.2 in), 9 November 1966 Nov Dec: 69.6 mm (2.7 in), 8 December 1966 Dec
The wettest day on record for each calendar month at Defiance. The most was 117.6 mm (4.6 in) on 18 September 1907.
Record daily precipitation for each month at Defiance
MonthRecord daily precipitation (mm)Date
Jan49.0 mm (1.9 in)19 January 1996
Feb55.6 mm (2.2 in)27 February 1997
Mar56.9 mm (2.2 in)14 March 1933
Apr104.1 mm (4.1 in)23 April 1977
May88.4 mm (3.5 in)26 May 2011
Jun81.0 mm (3.2 in)28 June 1894
Jul109.7 mm (4.3 in)5 July 1901
Aug101.6 mm (4.0 in)15 August 1909
Sep117.6 mm (4.6 in)18 September 1907
Oct98.8 mm (3.9 in)18 October 1988
Nov82.0 mm (3.2 in)9 November 1966
Dec69.6 mm (2.7 in)8 December 1966

Period of Record Coverage

1893 to 2026
Days with data per year at Defiance 122 years of record at Defiance, 1893 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1912, 1925, 1926, 1927, 1928, 1929, 1930 and others. 1893: 144 of 365 days1894: 364 of 365 days1895: 356 of 365 days1896: 362 of 366 days1897: 363 of 365 days1898: 363 of 365 days1899: 360 of 365 days1900: 356 of 365 days1901: 359 of 365 days1902: 353 of 365 days1903: 361 of 365 days1904: 359 of 366 days1905: 362 of 365 days1906: 355 of 365 days1907: 360 of 365 days1908: 361 of 366 days1909: 364 of 365 days1910: 359 of 365 days1911: 361 of 365 days1912: 60 of 366 days1925: 195 of 365 days1926: 30 of 365 days1927: 29 of 365 days1928: 87 of 366 days1929: 54 of 365 days1930: 5 of 365 days1931: 181 of 365 days1932: 356 of 366 days1933: 333 of 365 days1934: 334 of 365 days1935: 347 of 365 days1936: 355 of 366 days1937: 352 of 365 days1938: 228 of 365 days1939: 353 of 365 days1940: 356 of 366 days1941: 353 of 365 days1942: 354 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 364 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 365 of 366 days1949: 363 of 365 days1950: 333 of 365 days1951: 364 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 361 of 365 days1959: 363 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 363 of 365 days1964: 366 of 366 days1965: 364 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 363 of 365 days1978: 365 of 365 days1979: 363 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 364 of 365 days1983: 365 of 365 days1984: 364 of 366 days1985: 357 of 365 days1986: 341 of 365 days1987: 334 of 365 days1988: 365 of 366 days1989: 363 of 365 days1990: 364 of 365 days1991: 364 of 365 days1992: 366 of 366 days1993: 364 of 365 days1994: 365 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 364 of 365 days2000: 363 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 332 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 359 of 366 days2009: 361 of 365 days2010: 360 of 365 days2011: 362 of 365 days2012: 366 of 366 days2013: 364 of 365 days2014: 363 of 365 days2015: 365 of 365 days2016: 364 of 366 days2017: 360 of 365 days2018: 363 of 365 days2019: 365 of 365 days2020: 362 of 366 days2021: 359 of 365 days2022: 357 of 365 days2023: 358 of 365 days2024: 359 of 366 days2025: 362 of 365 days2026: 240 of 365 days190019401960198020002020
122 years of record at Defiance, 1893 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1912, 1925, 1926, 1927, 1928, 1929, 1930 and others.
Days with data per year at Defiance
YearDays with dataShare of yearComplete
189314439%No
1894364100%Yes
189535698%Yes
189636299%Yes
189736399%Yes
189836399%Yes
189936099%Yes
190035698%Yes
190135998%Yes
190235397%Yes
190336199%Yes
190435998%Yes
190536299%Yes
190635597%Yes
190736099%Yes
190836199%Yes
1909364100%Yes
191035998%Yes
191136199%Yes
19126016%No
192519553%No
1926308%No
1927298%No
19288724%No
19295415%No
193051%No
193118150%No
193235697%Yes
193333391%Yes
193433492%Yes
193534795%Yes
193635597%Yes
193735296%Yes
193822862%No
193935397%Yes
194035697%Yes
194135397%Yes
194235497%Yes
1943365100%Yes
1944366100%Yes
1945364100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
194936399%Yes
195033391%Yes
1951364100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
195836199%Yes
195936399%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
196336399%Yes
1964366100%Yes
1965364100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%Yes
197736399%Yes
1978365100%Yes
197936399%Yes
1980366100%Yes
1981365100%Yes
1982364100%Yes
1983365100%Yes
198436499%Yes
198535798%Yes
198634193%Yes
198733492%Yes
1988365100%Yes
198936399%Yes
1990364100%Yes
1991364100%Yes
1992366100%Yes
1993364100%Yes
1994365100%Yes
1995364100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999364100%Yes
200036399%Yes
2001364100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200533291%Yes
2006365100%Yes
2007365100%Yes
200835998%Yes
200936199%Yes
201036099%Yes
201136299%Yes
2012366100%Yes
2013364100%Yes
201436399%Yes
2015365100%Yes
201636499%Yes
201736099%Yes
201836399%Yes
2019365100%Yes
202036299%Yes
202135998%Yes
202235798%Yes
202335898%Yes
202435998%Yes
202536299%Yes
202624066%No

Latest Records

20
Latest records at Defiance
DateStationRecordValueBeat old record byOld record stoodSignificance
10 August 2026Defiance, USdaily rain61.2 mm (2.4 in)39.9 mm (1.6 in)95 years73 of 100 (Major)
3 July 2026Defiance, USdaily high min (Tie)24.4 C (75.9 F)tie13 years3 of 100 (Routine)
2 July 2026Defiance, USdaily high min (Tie)23.3 C (73.9 F)tie8 years3 of 100 (Routine)
1 July 2026Defiance, USdaily high min24.4 C (75.9 F)1.6 C (2.9 F)0 years14 of 100 (Routine)
16 April 2026Defiance, USdaily rain48.3 mm (1.9 in)3.8 mm (0.15 in)64 years33 of 100 (Routine)
16 April 2026Defiance, USdaily high min (Tie)16.7 C (62.1 F)tie13 years3 of 100 (Routine)
15 April 2026Defiance, USdaily high min16.1 C (61.0 F)1.7 C (3.1 F)20 years19 of 100 (Routine)
14 April 2026Defiance, USdaily high min16.1 C (61.0 F)1.7 C (3.1 F)71 years34 of 100 (Routine)
10 April 2026Defiance, USdaily high min13.3 C (55.9 F)1.1 C (2.0 F)8 years14 of 100 (Routine)
1 April 2026Defiance, USdaily rain66.0 mm (2.6 in)19.5 mm (0.8 in)96 years60 of 100 (Major)
11 March 2026Defiance, USdaily high min15.6 C (60.1 F)5.0 C (9.0 F)124 years48 of 100 (Notable)
11 March 2026Defiance, USdaily high max23.3 C (73.9 F)2.7 C (4.9 F)126 years43 of 100 (Notable)
10 March 2026Defiance, USdaily high max21.7 C (71.1 F)0.6 C (1.1 F)131 years40 of 100 (Notable)
7 March 2026Defiance, USdaily high max22.8 C (73.0 F)1.1 C (2.0 F)52 years26 of 100 (Routine)
10 January 2026Defiance, USdaily high max14.4 C (57.9 F)4.4 C (7.9 F)87 years42 of 100 (Notable)
10 January 2026Defiance, USdaily high min2.8 C (37.0 F)0.6 C (1.1 F)91 years37 of 100 (Notable)
9 January 2026Defiance, USdaily high min4.4 C (39.9 F)0.5 C (0.9 F)76 years33 of 100 (Routine)
6 December 2025Defiance, USdaily low min-17.2 C (1.0 F)0.5 C (0.9 F)48 years24 of 100 (Routine)
11 November 2025Defiance, USdaily snow depth (Tie)2.5 cm (1.0 in)tie124 years10 of 100 (Routine)
10 November 2025Defiance, USdaily snow depth5.1 cm (2.0 in)2.6 cm (1.0 in)120 years20 of 100 (Routine)

Climate Trend

104 complete years, 1894 to 2025
Annual mean temperature at Defiance as warming stripes, 1894 to 2025 One stripe for each of 104 complete years at Defiance, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 9.8 C (49.7 F); red stripes are warmer. The coolest year was 1978, at 8.1 C (46.5 F), and the warmest was 2024, at 12.1 C (53.7 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1894: 10.6 C, +0.7 C from the station mean1895: 9.4 C, -0.5 C from the station mean1896: 10.7 C, +0.9 C from the station mean1897: 9.6 C, -0.3 C from the station mean1898: 10.2 C, +0.4 C from the station mean1899: 9.9 C, 0.0 C from the station mean1900: 10.1 C, +0.3 C from the station mean1901: 9.3 C, -0.5 C from the station mean1902: 9.7 C, -0.1 C from the station mean1903: 9.4 C, -0.4 C from the station mean1905: 9.3 C, -0.5 C from the station mean1906: 10.7 C, +0.8 C from the station mean1907: 9.0 C, -0.8 C from the station mean1908: 10.4 C, +0.6 C from the station mean1909: 9.5 C, -0.4 C from the station mean1910: 9.4 C, -0.4 C from the station mean1911: 10.5 C, +0.6 C from the station mean1932: 10.7 C, +0.8 C from the station mean1935: 9.4 C, -0.4 C from the station mean1936: 9.5 C, -0.4 C from the station mean1937: 9.4 C, -0.4 C from the station mean1939: 10.6 C, +0.8 C from the station mean1940: 9.2 C, -0.7 C from the station mean1941: 11.0 C, +1.2 C from the station mean1942: 9.9 C, +0.1 C from the station mean1943: 9.9 C, 0.0 C from the station mean1944: 10.7 C, +0.9 C from the station mean1945: 9.4 C, -0.4 C from the station mean1946: 10.6 C, +0.8 C from the station mean1947: 9.4 C, -0.5 C from the station mean1948: 10.3 C, +0.5 C from the station mean1949: 11.3 C, +1.5 C from the station mean1951: 9.2 C, -0.7 C from the station mean1952: 10.4 C, +0.5 C from the station mean1953: 10.9 C, +1.0 C from the station mean1954: 10.2 C, +0.4 C from the station mean1955: 10.4 C, +0.5 C from the station mean1956: 9.8 C, -0.1 C from the station mean1957: 9.6 C, -0.2 C from the station mean1958: 8.8 C, -1.1 C from the station mean1959: 10.1 C, +0.3 C from the station mean1960: 8.9 C, -0.9 C from the station mean1961: 9.2 C, -0.6 C from the station mean1962: 8.8 C, -1.0 C from the station mean1963: 8.2 C, -1.6 C from the station mean1964: 9.4 C, -0.4 C from the station mean1965: 9.1 C, -0.8 C from the station mean1966: 8.7 C, -1.1 C from the station mean1967: 8.7 C, -1.2 C from the station mean1968: 9.2 C, -0.6 C from the station mean1969: 8.8 C, -1.1 C from the station mean1970: 9.1 C, -0.7 C from the station mean1971: 9.4 C, -0.4 C from the station mean1972: 8.3 C, -1.5 C from the station mean1973: 10.2 C, +0.3 C from the station mean1974: 9.0 C, -0.8 C from the station mean1975: 9.6 C, -0.2 C from the station mean1976: 8.6 C, -1.3 C from the station mean1977: 9.2 C, -0.6 C from the station mean1978: 8.1 C, -1.8 C from the station mean1979: 8.5 C, -1.4 C from the station mean1980: 8.2 C, -1.7 C from the station mean1981: 8.1 C, -1.7 C from the station mean1982: 8.9 C, -1.0 C from the station mean1983: 9.9 C, +0.1 C from the station mean1984: 9.3 C, -0.5 C from the station mean1985: 9.7 C, -0.1 C from the station mean1988: 10.0 C, +0.2 C from the station mean1989: 9.1 C, -0.7 C from the station mean1990: 10.9 C, +1.1 C from the station mean1991: 11.0 C, +1.2 C from the station mean1992: 9.6 C, -0.3 C from the station mean1993: 9.5 C, -0.4 C from the station mean1994: 9.7 C, -0.1 C from the station mean1995: 9.7 C, -0.2 C from the station mean1996: 9.1 C, -0.8 C from the station mean1997: 9.4 C, -0.4 C from the station mean1998: 12.0 C, +2.1 C from the station mean1999: 10.7 C, +0.9 C from the station mean2000: 10.1 C, +0.3 C from the station mean2001: 10.7 C, +0.8 C from the station mean2002: 10.5 C, +0.6 C from the station mean2003: 9.2 C, -0.6 C from the station mean2004: 9.9 C, +0.1 C from the station mean2006: 11.0 C, +1.1 C from the station mean2007: 10.4 C, +0.6 C from the station mean2008: 9.5 C, -0.3 C from the station mean2009: 9.6 C, -0.3 C from the station mean2010: 10.7 C, +0.8 C from the station mean2011: 10.2 C, +0.3 C from the station mean2012: 12.1 C, +2.2 C from the station mean2013: 9.8 C, 0.0 C from the station mean2014: 8.5 C, -1.4 C from the station mean2015: 10.1 C, +0.2 C from the station mean2016: 11.3 C, +1.4 C from the station mean2017: 11.2 C, +1.4 C from the station mean2018: 10.3 C, +0.4 C from the station mean2019: 9.9 C, +0.1 C from the station mean2020: 10.8 C, +1.0 C from the station mean2021: 11.1 C, +1.2 C from the station mean2022: 10.3 C, +0.4 C from the station mean2023: 11.4 C, +1.6 C from the station mean2024: 12.1 C, +2.2 C from the station mean2025: 10.4 C, +0.5 C from the station mean18941900191019201930194019501960197019801990200020102020
One stripe for each of 104 complete years at Defiance, 1894 to 2025. Blue stripes are years cooler than the station's own mean of 9.8 C (49.7 F); red stripes are warmer. The coolest year was 1978, at 8.1 C (46.5 F), and the warmest was 2024, at 12.1 C (53.7 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Defiance as warming stripes, 1894 to 2025
YearAnnual mean temperatureDifference from the station mean
189410.6 C+0.73 C
18959.4 C-0.48 C
189610.7 C+0.86 C
18979.6 C-0.27 C
189810.2 C+0.37 C
18999.9 C+0.04 C
190010.1 C+0.26 C
19019.3 C-0.52 C
19029.7 C-0.12 C
19039.4 C-0.39 C
19059.3 C-0.54 C
190610.7 C+0.82 C
19079.0 C-0.79 C
190810.4 C+0.59 C
19099.5 C-0.35 C
19109.4 C-0.39 C
191110.5 C+0.65 C
193210.7 C+0.84 C
19359.4 C-0.43 C
19369.5 C-0.35 C
19379.4 C-0.40 C
193910.6 C+0.79 C
19409.2 C-0.68 C
194111.0 C+1.16 C
19429.9 C+0.08 C
19439.9 C+0.03 C
194410.7 C+0.88 C
19459.4 C-0.43 C
194610.6 C+0.81 C
19479.4 C-0.47 C
194810.3 C+0.46 C
194911.3 C+1.46 C
19519.2 C-0.65 C
195210.4 C+0.55 C
195310.9 C+1.05 C
195410.2 C+0.38 C
195510.4 C+0.53 C
19569.8 C-0.05 C
19579.6 C-0.22 C
19588.8 C-1.06 C
195910.1 C+0.28 C
19608.9 C-0.89 C
19619.2 C-0.62 C
19628.8 C-1.01 C
19638.2 C-1.63 C
19649.4 C-0.44 C
19659.1 C-0.75 C
19668.7 C-1.10 C
19678.7 C-1.16 C
19689.2 C-0.64 C
19698.8 C-1.06 C
19709.1 C-0.71 C
19719.4 C-0.40 C
19728.3 C-1.52 C
197310.2 C+0.33 C
19749.0 C-0.81 C
19759.6 C-0.23 C
19768.6 C-1.27 C
19779.2 C-0.63 C
19788.1 C-1.75 C
19798.5 C-1.37 C
19808.2 C-1.66 C
19818.1 C-1.71 C
19828.9 C-0.98 C
19839.9 C+0.10 C
19849.3 C-0.49 C
19859.7 C-0.14 C
198810.0 C+0.17 C
19899.1 C-0.69 C
199010.9 C+1.07 C
199111.0 C+1.21 C
19929.6 C-0.28 C
19939.5 C-0.38 C
19949.7 C-0.10 C
19959.7 C-0.17 C
19969.1 C-0.78 C
19979.4 C-0.42 C
199812.0 C+2.12 C
199910.7 C+0.90 C
200010.1 C+0.28 C
200110.7 C+0.84 C
200210.5 C+0.63 C
20039.2 C-0.63 C
20049.9 C+0.06 C
200611.0 C+1.14 C
200710.4 C+0.59 C
20089.5 C-0.32 C
20099.6 C-0.28 C
201010.7 C+0.83 C
201110.2 C+0.35 C
201212.1 C+2.25 C
20139.8 C-0.02 C
20148.5 C-1.37 C
201510.1 C+0.24 C
201611.3 C+1.43 C
201711.2 C+1.38 C
201810.3 C+0.43 C
20199.9 C+0.07 C
202010.8 C+0.98 C
202111.1 C+1.22 C
202210.3 C+0.44 C
202311.4 C+1.56 C
202412.1 C+2.25 C
202510.4 C+0.53 C

The fitted trend in annual mean temperature here over 1894 to 2025 is 0.04 C (-0.01 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.07 F (-0.01 to 0.15) per decade. The slope is a straight line fitted to 104 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Defiance
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.04 C (-0.01 to 0.08) per decade0.07 F (-0.01 to 0.15) per decade1894 to 2025104Not clearly different from zero
Mean daily maximum-0.04 C (-0.08 to 0.00) per decade-0.07 F (-0.15 to 0.01) per decade1894 to 2025104Not clearly different from zero
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1894 to 2025104Rise

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 Defiance: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)193435.6 C (96.1 F)122
Coldest night (TNn)-32.2 C (-26.0 F)1912-22.2 C (-8.0 F)117
Wettest day (Rx1day)117.6 mm (4.6 in)190749.0 mm (1.9 in)125
Wettest five days (Rx5day)174.0 mm (6.9 in)200782.9 mm (3.3 in)124
Longest dry spell (CDD)35 days192417 days125

Hottest day (TXx)

Hottest day (TXx) at Defiance by year The hottest day of the year at Defiance, 1893 to 2026. The record is 43.9 C (111.0 F) in 1934, marked on the chart; the median year is 35.6 C (96.1 F). 02040601900192019401960198020002020Record: 43.9 C (111.0 F) in 1934
The hottest day of the year at Defiance, 1893 to 2026. The record is 43.9 C (111.0 F) in 1934, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Defiance by year
YearHottest day (TXx)
189336.1 C (97.0 F)
189436.1 C (97.0 F)
189538.3 C (100.9 F)
189638.3 C (100.9 F)
189736.7 C (98.1 F)
189836.1 C (97.0 F)
189935.6 C (96.1 F)
190034.4 C (93.9 F)
190137.8 C (100.0 F)
190234.4 C (93.9 F)
190335.0 C (95.0 F)
190434.4 C (93.9 F)
190534.4 C (93.9 F)
190636.7 C (98.1 F)
190732.8 C (91.0 F)
190836.1 C (97.0 F)
190935.0 C (95.0 F)
191037.2 C (99.0 F)
191137.8 C (100.0 F)
19128.9 C (48.0 F)
1922n/a
1923n/a
1924n/a
192536.7 C (98.1 F)
192625.6 C (78.1 F)
19271.1 C (34.0 F)
192818.9 C (66.0 F)
19296.7 C (44.1 F)
193041.1 C (106.0 F)
193142.2 C (108.0 F)
193238.9 C (102.0 F)
193341.1 C (106.0 F)
193443.9 C (111.0 F)
193536.7 C (98.1 F)
193641.1 C (106.0 F)
193735.0 C (95.0 F)
193832.8 C (91.0 F)
193937.8 C (100.0 F)
194038.3 C (100.9 F)
194138.3 C (100.9 F)
194236.1 C (97.0 F)
194336.1 C (97.0 F)
194437.8 C (100.0 F)
194535.0 C (95.0 F)
194636.1 C (97.0 F)
194738.3 C (100.9 F)
194838.9 C (102.0 F)
194936.1 C (97.0 F)
195034.4 C (93.9 F)
195135.0 C (95.0 F)
195237.2 C (99.0 F)
195337.2 C (99.0 F)
195436.7 C (98.1 F)
195536.7 C (98.1 F)
195635.6 C (96.1 F)
195734.4 C (93.9 F)
195832.8 C (91.0 F)
195935.6 C (96.1 F)
196034.4 C (93.9 F)
196134.4 C (93.9 F)
196237.2 C (99.0 F)
196335.6 C (96.1 F)
196437.2 C (99.0 F)
196536.7 C (98.1 F)
196637.2 C (99.0 F)
196735.0 C (95.0 F)
196835.0 C (95.0 F)
196935.0 C (95.0 F)
197040.0 C (104.0 F)
197137.8 C (100.0 F)
197234.4 C (93.9 F)
197334.4 C (93.9 F)
197436.1 C (97.0 F)
197534.4 C (93.9 F)
197635.6 C (96.1 F)
197736.1 C (97.0 F)
197835.0 C (95.0 F)
197933.3 C (91.9 F)
198037.2 C (99.0 F)
198135.6 C (96.1 F)
198233.9 C (93.0 F)
198337.2 C (99.0 F)
198435.0 C (95.0 F)
198534.4 C (93.9 F)
198634.4 C (93.9 F)
198737.2 C (99.0 F)
198840.0 C (104.0 F)
198936.1 C (97.0 F)
199036.7 C (98.1 F)
199135.0 C (95.0 F)
199234.4 C (93.9 F)
199335.6 C (96.1 F)
199437.2 C (99.0 F)
199538.3 C (100.9 F)
199635.0 C (95.0 F)
199735.6 C (96.1 F)
199835.6 C (96.1 F)
199937.8 C (100.0 F)
200032.8 C (91.0 F)
200135.6 C (96.1 F)
200235.0 C (95.0 F)
200333.3 C (91.9 F)
200432.8 C (91.0 F)
200536.1 C (97.0 F)
200635.0 C (95.0 F)
200735.0 C (95.0 F)
200835.0 C (95.0 F)
200935.0 C (95.0 F)
201035.6 C (96.1 F)
201138.3 C (100.9 F)
201241.7 C (107.1 F)
201337.2 C (99.0 F)
201434.4 C (93.9 F)
201533.9 C (93.0 F)
201634.4 C (93.9 F)
201735.0 C (95.0 F)
201834.4 C (93.9 F)
201935.6 C (96.1 F)
202035.6 C (96.1 F)
202134.4 C (93.9 F)
202234.4 C (93.9 F)
202333.3 C (91.9 F)
202436.1 C (97.0 F)
202535.0 C (95.0 F)
202636.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Defiance by year The coldest night of the year at Defiance, 1893 to 2026. The record is -32.2 C (-26.0 F) in 1912, marked on the chart; the median year is -22.2 C (-8.0 F). -40-200201900192019401960198020002020Record: -32.2 C (-26.0 F) in 1912
The coldest night of the year at Defiance, 1893 to 2026. The record is -32.2 C (-26.0 F) in 1912, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Defiance by year
YearColdest night (TNn)
1893-12.2 C (10.0 F)
1894-20.6 C (-5.1 F)
1895-24.4 C (-11.9 F)
1896-22.8 C (-9.0 F)
1897-27.8 C (-18.0 F)
1898-21.7 C (-7.1 F)
1899-27.2 C (-17.0 F)
1900-20.6 C (-5.1 F)
1901-23.3 C (-9.9 F)
1902-22.8 C (-9.0 F)
1903-23.3 C (-9.9 F)
1904-26.7 C (-16.1 F)
1905-26.7 C (-16.1 F)
1906-23.9 C (-11.0 F)
1907-20.0 C (-4.0 F)
1908-19.4 C (-2.9 F)
1909-24.4 C (-11.9 F)
1910-22.8 C (-9.0 F)
1911-17.8 C (0.0 F)
1912-32.2 C (-26.0 F)
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
193016.7 C (62.1 F)
1931-10.0 C (14.0 F)
1932-21.7 C (-7.1 F)
1933-23.9 C (-11.0 F)
1934-26.1 C (-15.0 F)
1935-19.4 C (-2.9 F)
1936-25.6 C (-14.1 F)
1937-18.9 C (-2.0 F)
1938-19.4 C (-2.9 F)
1939-17.2 C (1.0 F)
1940-24.4 C (-11.9 F)
1941-15.0 C (5.0 F)
1942-22.2 C (-8.0 F)
1943-23.3 C (-9.9 F)
1944-23.3 C (-9.9 F)
1945-21.7 C (-7.1 F)
1946-22.2 C (-8.0 F)
1947-18.9 C (-2.0 F)
1948-21.7 C (-7.1 F)
1949-17.2 C (1.0 F)
1950-26.7 C (-16.1 F)
1951-26.7 C (-16.1 F)
1952-15.0 C (5.0 F)
1953-17.8 C (0.0 F)
1954-18.3 C (-0.9 F)
1955-22.2 C (-8.0 F)
1956-20.6 C (-5.1 F)
1957-23.3 C (-9.9 F)
1958-23.3 C (-9.9 F)
1959-22.2 C (-8.0 F)
1960-25.0 C (-13.0 F)
1961-23.9 C (-11.0 F)
1962-23.9 C (-11.0 F)
1963-28.3 C (-18.9 F)
1964-22.8 C (-9.0 F)
1965-23.3 C (-9.9 F)
1966-22.2 C (-8.0 F)
1967-23.9 C (-11.0 F)
1968-25.6 C (-14.1 F)
1969-21.7 C (-7.1 F)
1970-25.6 C (-14.1 F)
1971-22.2 C (-8.0 F)
1972-28.3 C (-18.9 F)
1973-23.3 C (-9.9 F)
1974-21.1 C (-6.0 F)
1975-23.9 C (-11.0 F)
1976-23.9 C (-11.0 F)
1977-27.8 C (-18.0 F)
1978-25.0 C (-13.0 F)
1979-25.0 C (-13.0 F)
1980-21.7 C (-7.1 F)
1981-26.7 C (-16.1 F)
1982-30.0 C (-22.0 F)
1983-27.8 C (-18.0 F)
1984-29.4 C (-20.9 F)
1985-27.8 C (-18.0 F)
1986-20.0 C (-4.0 F)
1987-21.7 C (-7.1 F)
1988-21.1 C (-6.0 F)
1989-28.3 C (-18.9 F)
1990-18.3 C (-0.9 F)
1991-16.7 C (1.9 F)
1992-22.2 C (-8.0 F)
1993-22.8 C (-9.0 F)
1994-28.9 C (-20.0 F)
1995-19.4 C (-2.9 F)
1996-22.2 C (-8.0 F)
1997-22.2 C (-8.0 F)
1998-14.4 C (6.1 F)
1999-23.9 C (-11.0 F)
2000-21.1 C (-6.0 F)
2001-19.4 C (-2.9 F)
2002-16.1 C (3.0 F)
2003-23.9 C (-11.0 F)
2004-22.8 C (-9.0 F)
2005-16.7 C (1.9 F)
2006-15.6 C (3.9 F)
2007-21.7 C (-7.1 F)
2008-19.4 C (-2.9 F)
2009-27.2 C (-17.0 F)
2010-18.3 C (-0.9 F)
2011-23.3 C (-9.9 F)
2012-15.0 C (5.0 F)
2013-18.3 C (-0.9 F)
2014-27.8 C (-18.0 F)
2015-25.0 C (-13.0 F)
2016-21.7 C (-7.1 F)
2017-23.3 C (-9.9 F)
2018-25.0 C (-13.0 F)
2019-25.6 C (-14.1 F)
2020-13.9 C (7.0 F)
2021-20.6 C (-5.1 F)
2022-22.2 C (-8.0 F)
2023-13.9 C (7.0 F)
2024-20.6 C (-5.1 F)
2025-21.1 C (-6.0 F)
2026-22.2 C (-8.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Defiance by year The wettest day of the year at Defiance, 1893 to 2026. The record is 117.6 mm (4.6 in) in 1907, marked on the chart; the median year is 49.0 mm (1.9 in). 02550751001251900192019401960198020002020Record: 117.6 mm (4.6 in) in 1907
The wettest day of the year at Defiance, 1893 to 2026. The record is 117.6 mm (4.6 in) in 1907, marked on the chart; the median year is 49.0 mm (1.9 in).
Wettest day (Rx1day) at Defiance by year
YearWettest day (Rx1day)
189338.1 mm (1.5 in)
189481.0 mm (3.2 in)
189535.6 mm (1.4 in)
189659.9 mm (2.4 in)
189753.1 mm (2.1 in)
189839.1 mm (1.5 in)
189945.2 mm (1.8 in)
190058.4 mm (2.3 in)
1901109.7 mm (4.3 in)
190260.5 mm (2.4 in)
190346.7 mm (1.8 in)
190445.0 mm (1.8 in)
190568.6 mm (2.7 in)
190637.8 mm (1.5 in)
1907117.6 mm (4.6 in)
190860.7 mm (2.4 in)
1909101.6 mm (4.0 in)
191030.0 mm (1.2 in)
191140.6 mm (1.6 in)
191219.6 mm (0.8 in)
192228.7 mm (1.1 in)
192338.9 mm (1.5 in)
192436.6 mm (1.4 in)
192543.4 mm (1.7 in)
192653.3 mm (2.1 in)
192737.1 mm (1.5 in)
192839.4 mm (1.6 in)
192949.0 mm (1.9 in)
193055.4 mm (2.2 in)
193143.2 mm (1.7 in)
193263.8 mm (2.5 in)
193356.9 mm (2.2 in)
193445.2 mm (1.8 in)
193548.0 mm (1.9 in)
193638.9 mm (1.5 in)
193754.6 mm (2.1 in)
193841.7 mm (1.6 in)
193964.8 mm (2.6 in)
194038.1 mm (1.5 in)
194147.5 mm (1.9 in)
194260.5 mm (2.4 in)
194364.0 mm (2.5 in)
194456.4 mm (2.2 in)
194551.3 mm (2.0 in)
194670.4 mm (2.8 in)
194752.3 mm (2.1 in)
194839.9 mm (1.6 in)
194951.3 mm (2.0 in)
195078.7 mm (3.1 in)
195143.7 mm (1.7 in)
195245.2 mm (1.8 in)
195345.5 mm (1.8 in)
195442.2 mm (1.7 in)
195540.6 mm (1.6 in)
195674.9 mm (2.9 in)
195744.5 mm (1.8 in)
195841.4 mm (1.6 in)
195949.3 mm (1.9 in)
196037.3 mm (1.5 in)
196144.5 mm (1.8 in)
196252.8 mm (2.1 in)
196354.6 mm (2.1 in)
196441.7 mm (1.6 in)
196556.4 mm (2.2 in)
196682.0 mm (3.2 in)
196733.3 mm (1.3 in)
196876.7 mm (3.0 in)
196948.3 mm (1.9 in)
197045.7 mm (1.8 in)
197145.2 mm (1.8 in)
197277.0 mm (3.0 in)
197355.4 mm (2.2 in)
197434.8 mm (1.4 in)
197559.2 mm (2.3 in)
197633.0 mm (1.3 in)
1977104.1 mm (4.1 in)
197836.8 mm (1.4 in)
197946.0 mm (1.8 in)
198040.4 mm (1.6 in)
198167.3 mm (2.6 in)
198279.5 mm (3.1 in)
198339.1 mm (1.5 in)
198438.9 mm (1.5 in)
198569.1 mm (2.7 in)
198639.9 mm (1.6 in)
198736.8 mm (1.4 in)
198898.8 mm (3.9 in)
198951.3 mm (2.0 in)
199057.2 mm (2.3 in)
199182.0 mm (3.2 in)
199260.2 mm (2.4 in)
199338.1 mm (1.5 in)
199431.2 mm (1.2 in)
199555.9 mm (2.2 in)
199656.4 mm (2.2 in)
199785.6 mm (3.4 in)
199853.6 mm (2.1 in)
199939.9 mm (1.6 in)
200052.6 mm (2.1 in)
200145.5 mm (1.8 in)
200234.3 mm (1.4 in)
200345.5 mm (1.8 in)
200441.9 mm (1.6 in)
200550.8 mm (2.0 in)
200654.4 mm (2.1 in)
200773.2 mm (2.9 in)
200848.3 mm (1.9 in)
200976.7 mm (3.0 in)
201069.9 mm (2.8 in)
2011111.8 mm (4.4 in)
201247.0 mm (1.9 in)
201343.2 mm (1.7 in)
201475.4 mm (3.0 in)
201545.5 mm (1.8 in)
201655.9 mm (2.2 in)
201755.9 mm (2.2 in)
201885.6 mm (3.4 in)
201958.4 mm (2.3 in)
202088.4 mm (3.5 in)
202155.1 mm (2.2 in)
202245.7 mm (1.8 in)
202338.6 mm (1.5 in)
202427.7 mm (1.1 in)
202544.5 mm (1.8 in)
202666.0 mm (2.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Defiance by year The wettest five days of the year at Defiance, 1893 to 2026. The record is 174.0 mm (6.9 in) in 2007, marked on the chart; the median year is 82.9 mm (3.3 in). 0501001502001900192019401960198020002020Record: 174.0 mm (6.9 in) in 2007
The wettest five days of the year at Defiance, 1893 to 2026. The record is 174.0 mm (6.9 in) in 2007, marked on the chart; the median year is 82.9 mm (3.3 in).
Wettest five days (Rx5day) at Defiance by year
YearWettest five days (Rx5day)
1893n/a
1894102.3 mm (4.0 in)
189554.1 mm (2.1 in)
189638.4 mm (1.5 in)
189773.1 mm (2.9 in)
189896.0 mm (3.8 in)
189967.8 mm (2.7 in)
190063.5 mm (2.5 in)
1901125.4 mm (4.9 in)
1902111.8 mm (4.4 in)
190389.7 mm (3.5 in)
190498.3 mm (3.9 in)
1905123.2 mm (4.9 in)
190665.5 mm (2.6 in)
1907121.4 mm (4.8 in)
190849.8 mm (2.0 in)
1909115.3 mm (4.5 in)
191063.0 mm (2.5 in)
191172.4 mm (2.9 in)
191223.1 mm (0.9 in)
192238.9 mm (1.5 in)
192385.7 mm (3.4 in)
192459.5 mm (2.3 in)
192587.6 mm (3.4 in)
1926133.9 mm (5.3 in)
192796.7 mm (3.8 in)
192860.6 mm (2.4 in)
1929106.2 mm (4.2 in)
193086.4 mm (3.4 in)
193153.0 mm (2.1 in)
193268.4 mm (2.7 in)
193367.3 mm (2.6 in)
193486.3 mm (3.4 in)
193575.5 mm (3.0 in)
193655.4 mm (2.2 in)
193776.7 mm (3.0 in)
193858.6 mm (2.3 in)
193981.3 mm (3.2 in)
194059.4 mm (2.3 in)
1941101.4 mm (4.0 in)
194263.2 mm (2.5 in)
1943116.6 mm (4.6 in)
194497.1 mm (3.8 in)
1945103.1 mm (4.1 in)
1946140.7 mm (5.5 in)
194771.3 mm (2.8 in)
194868.1 mm (2.7 in)
1949115.8 mm (4.6 in)
195095.5 mm (3.8 in)
195160.2 mm (2.4 in)
1952101.4 mm (4.0 in)
195358.0 mm (2.3 in)
195457.8 mm (2.3 in)
195588.3 mm (3.5 in)
195684.8 mm (3.3 in)
195789.2 mm (3.5 in)
195882.9 mm (3.3 in)
195988.2 mm (3.5 in)
196064.8 mm (2.6 in)
196162.0 mm (2.4 in)
196257.1 mm (2.2 in)
196380.0 mm (3.1 in)
196472.9 mm (2.9 in)
196591.9 mm (3.6 in)
1966124.0 mm (4.9 in)
196761.7 mm (2.4 in)
196887.9 mm (3.5 in)
196965.8 mm (2.6 in)
197063.7 mm (2.5 in)
197178.5 mm (3.1 in)
1972118.4 mm (4.7 in)
197364.0 mm (2.5 in)
197457.2 mm (2.3 in)
197589.4 mm (3.5 in)
197650.7 mm (2.0 in)
1977116.5 mm (4.6 in)
197856.9 mm (2.2 in)
197978.5 mm (3.1 in)
198056.4 mm (2.2 in)
1981135.9 mm (5.4 in)
1982108.4 mm (4.3 in)
198364.2 mm (2.5 in)
198468.0 mm (2.7 in)
198582.8 mm (3.3 in)
198696.5 mm (3.8 in)
198754.4 mm (2.1 in)
1988109.2 mm (4.3 in)
198989.7 mm (3.5 in)
1990110.8 mm (4.4 in)
1991119.4 mm (4.7 in)
199284.8 mm (3.3 in)
199378.3 mm (3.1 in)
199476.7 mm (3.0 in)
199579.0 mm (3.1 in)
1996135.4 mm (5.3 in)
1997120.4 mm (4.7 in)
1998105.6 mm (4.2 in)
199965.3 mm (2.6 in)
200083.6 mm (3.3 in)
200177.3 mm (3.0 in)
200275.8 mm (3.0 in)
200396.0 mm (3.8 in)
200485.3 mm (3.4 in)
200590.4 mm (3.6 in)
2006103.9 mm (4.1 in)
2007174.0 mm (6.9 in)
200890.5 mm (3.6 in)
200989.9 mm (3.5 in)
201077.8 mm (3.1 in)
2011137.2 mm (5.4 in)
201247.0 mm (1.9 in)
201375.7 mm (3.0 in)
201475.9 mm (3.0 in)
2015106.7 mm (4.2 in)
201663.2 mm (2.5 in)
2017100.9 mm (4.0 in)
201898.3 mm (3.9 in)
201976.2 mm (3.0 in)
2020117.7 mm (4.6 in)
202190.5 mm (3.6 in)
202268.8 mm (2.7 in)
202350.8 mm (2.0 in)
202451.2 mm (2.0 in)
202597.8 mm (3.9 in)
2026114.2 mm (4.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Defiance by year The longest dry spell of the year at Defiance, 1893 to 2026. The record is 35 days in 1924, marked on the chart; the median year is 17 days. 0102030401900192019401960198020002020Record: 35 days in 1924
The longest dry spell of the year at Defiance, 1893 to 2026. The record is 35 days in 1924, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Defiance by year
YearLongest dry spell (CDD)
18931 day
189417 days
18955 days
189610 days
189724 days
189816 days
189917 days
190026 days
190122 days
19027 days
190316 days
190418 days
190518 days
190613 days
190714 days
190827 days
190915 days
191019 days
191121 days
191210 days
192215 days
192322 days
192435 days
192519 days
192618 days
192718 days
192814 days
192917 days
193022 days
193118 days
193217 days
193316 days
193420 days
193513 days
193620 days
193715 days
193821 days
193921 days
194024 days
194122 days
194228 days
194320 days
194418 days
194515 days
194617 days
194713 days
194819 days
194921 days
195016 days
195115 days
195225 days
195325 days
195417 days
195519 days
195634 days
195731 days
195822 days
195912 days
196017 days
196115 days
196217 days
196331 days
196416 days
196515 days
196620 days
196724 days
196825 days
196929 days
197021 days
197113 days
197214 days
197314 days
19749 days
197515 days
197626 days
197731 days
197815 days
197917 days
198016 days
198124 days
198217 days
198324 days
198415 days
198515 days
198615 days
198728 days
198823 days
198923 days
199013 days
199114 days
199219 days
199318 days
199426 days
199521 days
199625 days
199714 days
199819 days
199921 days
200013 days
200117 days
200221 days
200319 days
200420 days
200516 days
200616 days
200714 days
200816 days
200921 days
201018 days
201118 days
201220 days
201314 days
201412 days
201514 days
201617 days
201714 days
201813 days
201913 days
202013 days
202123 days
202214 days
202322 days
202416 days
202534 days
202611 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

104 years with a frost

Across 104 years with a frost, the median last spring frost at Defiance falls on 29 April and the median first autumn frost on 13 October, which leaves a median of 166 days between them.

In 1995 to 2025 the median growing season was 182 days. That is 28 days more than in 1894 to 1947.

Fitted over all years, the growing season changes by +2.8 days per decade at this station.

Frost dates and growing season at Defiance
MeasureMedian, all yearsEarliest period (1894 to 1947)Recent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost29 April4 May24 April10 days earlier-1.2 days per decade
First autumn frost13 October3 October22 October19 days later+1.6 days per decade
Growing days166 days154 days182 days28 days more+2.8 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

110 years, 1894 to 2025

A day with at least 49.7 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 117.7 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Defiance: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.7 mm (2.0 in)
5 years64.5 mm (2.5 in)
10 years75.5 mm (3.0 in)
25 years91.0 mm (3.6 in)
50 years103.8 mm (4.1 in)
100 years117.7 mm (4.6 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 110 years of values from 1894 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: 111.8 mm (4.4 in) in 2011; 104.1 mm (4.1 in) in 1977; 101.6 mm (4.0 in) in 1909.

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, Defiance had a mean temperature of 10.6 C (51.1 F) and 958.6 mm (37.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Muncie Delaware Co AP (United States, 144 km away), Salamonia (United States, 107 km away) and Lafayette Purdue UNIV AP (United States, 236 km away).

Climate twins of Defiance: 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
Muncie Delaware Co APUnited States144 km (89 mi)10.7 C (51.3 F)979.2 mm (38.6 in)0.63
SalamoniaUnited States107 km (66 mi)10.5 C (50.9 F)936.2 mm (36.9 in)0.66
Lafayette Purdue UNIV APUnited States236 km (147 mi)10.7 C (51.2 F)915.5 mm (36.0 in)0.70

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 Defiance standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Defiance 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).