Built 2026-10-17 (17 October 2026)

1 WSW Princeton Weather Records (USC00127125)

Record envelope, standing records and threshold days for 1 WSW Princeton (USC00127125), Indiana, United States, with 134 years of record.

Key Facts for 1 WSW Princeton

  • 1 WSW Princeton (USC00127125) is a weather station in Indiana, United States at 38.35 latitude and -87.59 longitude, 137 m (450 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at 1 WSW Princeton still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • 1 WSW Princeton set a daily record high minimum temperature of 23.3 C (73.9 F) on 18 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Indiana, United States, 38.35 latitude, -87.59 longitude.
  • Elevation: 137 m (450 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

7 days at or beyond a record
Daily record high and record low at 1 WSW Princeton, with 2026 drawn through them The band shows the record high and record low for each calendar day at 1 WSW Princeton. The lines show the 2026 daily maximum and minimum. 7 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 1 WSW Princeton. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at 1 WSW Princeton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.9 C (75.0 F)-28.3 C (-18.9 F)18.9 C (66.0 F)-17.8 C (0.0 F)
Feb25.6 C (78.1 F)-28.9 C (-20.0 F)21.7 C (71.1 F)-13.9 C (7.0 F)
Mar32.8 C (91.0 F)-21.7 C (-7.1 F)31.1 C (88.0 F)-7.8 C (18.0 F)
Apr33.3 C (91.9 F)-6.1 C (21.0 F)29.4 C (84.9 F)2.2 C (36.0 F)
May37.8 C (100.0 F)-2.2 C (28.0 F)30.6 C (87.1 F)3.3 C (37.9 F)
Jun41.1 C (106.0 F)0.0 C (32.0 F)33.3 C (91.9 F)13.3 C (55.9 F)
Jul45.0 C (113.0 F)7.8 C (46.0 F)35.6 C (96.1 F)15.6 C (60.1 F)
Aug42.2 C (108.0 F)6.1 C (43.0 F)36.1 C (97.0 F)15.0 C (59.0 F)
Sep40.6 C (105.1 F)-2.8 C (27.0 F)38.3 C (100.9 F)10.0 C (50.0 F)
Oct35.0 C (95.0 F)-7.2 C (19.0 F)32.2 C (90.0 F)11.1 C (52.0 F)
Nov28.9 C (84.0 F)-19.4 C (-2.9 F)n/an/a
Dec24.4 C (75.9 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at 1 WSW Princeton by the year they were set 1,464 records at 1 WSW Princeton still stand. 1936 holds the most, with 46. 02040601893: 11897: 111899: 261900: 111901: 241902: 171903: 131904: 31905: 61906: 191907: 181908: 81909: 101910: 121911: 301912: 71913: 211914: 171915: 131916: 141917: 301918: 261919: 151920: 161921: 51922: 81923: 131924: 111925: 261926: 51927: 191928: 221929: 191930: 281931: 271932: 91933: 161934: 111935: 101936: 461937: 61938: 101939: 161940: 171941: 51942: 111943: 121944: 101945: 111946: 91947: 81948: 61949: 81950: 141951: 91952: 161953: 151954: 141955: 121956: 41957: 61958: 81959: 71960: 141961: 61962: 101963: 171964: 101965: 131966: 111967: 181968: 111969: 71970: 101971: 31972: 91973: 51974: 181975: 61976: 81977: 141978: 91979: 91980: 91981: 61982: 141983: 131984: 81985: 111986: 131987: 81988: 61989: 181990: 121991: 191992: 141993: 41994: 31995: 81996: 91997: 91998: 101999: 22000: 52001: 112002: 102003: 32004: 72005: 52006: 32007: 42008: 22009: 62010: 32011: 42012: 202013: 42014: 92015: 72016: 62017: 52018: 162019: 102020: 52021: 102022: 52023: 22024: 112025: 52026: 51893191019231936194919621975198820012014
1,464 records at 1 WSW Princeton still stand. 1936 holds the most, with 46.
Standing records at 1 WSW Princeton by the year they were set
Year setStanding records
18931
189711
189926
190011
190124
190217
190313
19043
19056
190619
190718
19088
190910
191012
191130
19127
191321
191417
191513
191614
191730
191826
191915
192016
19215
19228
192313
192411
192526
19265
192719
192822
192919
193028
193127
19329
193316
193411
193510
193646
19376
193810
193916
194017
19415
194211
194312
194410
194511
19469
19478
19486
19498
195014
19519
195216
195315
195414
195512
19564
19576
19588
19597
196014
19616
196210
196317
196410
196513
196611
196718
196811
19697
197010
19713
19729
19735
197418
19756
19768
197714
19789
19799
19809
19816
198214
198313
19848
198511
198613
19878
19886
198918
199012
199119
199214
19934
19943
19958
19969
19979
199810
19992
20005
200111
200210
20033
20047
20055
20063
20074
20082
20096
20103
20114
201220
20134
20149
20157
20166
20175
201816
201910
20205
202110
20225
20232
202411
20255
20265

All-Time Record Progression

2 new records
When 1 WSW Princeton set new all-time records 2 all-time records were set at 1 WSW Princeton between 13 July 1936 and 5 August 1954. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature13 July 1936: Record high maximum temperature 45.0 C (113.0 F)5 August 1954: Record high minimum temperature 28.9 C (84.0 F)1940194519501955
2 all-time records were set at 1 WSW Princeton between 13 July 1936 and 5 August 1954. Each dot is a new record.
When 1 WSW Princeton set new all-time records
DateKindDetail
1936-07-13Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
1954-08-05Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Aug: 266.7 mm (10.5 in)
Record daily precipitation for each month at 1 WSW Princeton The wettest day on record for each calendar month at 1 WSW Princeton. The most was 266.7 mm (10.5 in) on 6 August 1905. 0100200300 Jan: 96.5 mm (3.8 in), 14 January 1937 Jan Feb: 139.7 mm (5.5 in), 14 February 1908 Feb Mar: 124.2 mm (4.9 in), 9 March 1964 Mar Apr: 84.3 mm (3.3 in), 4 April 2006 Apr May: 119.4 mm (4.7 in), 8 May 1961 May Jun: 101.6 mm (4.0 in), 17 June 2019 Jun Jul: 210.6 mm (8.3 in), 26 July 1979 Jul Aug: 266.7 mm (10.5 in), 6 August 1905 Aug Sep: 123.2 mm (4.9 in), 26 September 2007 Sep Oct: 101.9 mm (4.0 in), 6 October 2013 Oct Nov: 109.0 mm (4.3 in), 14 November 1993 Nov Dec: 147.3 mm (5.8 in), 21 December 2013 Dec
The wettest day on record for each calendar month at 1 WSW Princeton. The most was 266.7 mm (10.5 in) on 6 August 1905.
Record daily precipitation for each month at 1 WSW Princeton
MonthRecord daily precipitation (mm)Date
Jan96.5 mm (3.8 in)14 January 1937
Feb139.7 mm (5.5 in)14 February 1908
Mar124.2 mm (4.9 in)9 March 1964
Apr84.3 mm (3.3 in)4 April 2006
May119.4 mm (4.7 in)8 May 1961
Jun101.6 mm (4.0 in)17 June 2019
Jul210.6 mm (8.3 in)26 July 1979
Aug266.7 mm (10.5 in)6 August 1905
Sep123.2 mm (4.9 in)26 September 2007
Oct101.9 mm (4.0 in)6 October 2013
Nov109.0 mm (4.3 in)14 November 1993
Dec147.3 mm (5.8 in)21 December 2013

Period of Record Coverage

1897 to 2026
Days with data per year at 1 WSW Princeton 130 years of record at 1 WSW Princeton, 1897 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1954, 2008, 2022, 2023, 2026. 1897: 204 of 365 days1898: 60 of 365 days1899: 343 of 365 days1900: 336 of 365 days1901: 338 of 365 days1902: 347 of 365 days1903: 332 of 365 days1904: 338 of 366 days1905: 348 of 365 days1906: 362 of 365 days1907: 362 of 365 days1908: 360 of 366 days1909: 362 of 365 days1910: 364 of 365 days1911: 361 of 365 days1912: 363 of 366 days1913: 363 of 365 days1914: 363 of 365 days1915: 364 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 363 of 365 days1919: 364 of 365 days1920: 365 of 366 days1921: 364 of 365 days1922: 350 of 365 days1923: 365 of 365 days1924: 364 of 366 days1925: 363 of 365 days1926: 365 of 365 days1927: 360 of 365 days1928: 365 of 366 days1929: 362 of 365 days1930: 362 of 365 days1931: 364 of 365 days1932: 362 of 366 days1933: 362 of 365 days1934: 364 of 365 days1935: 363 of 365 days1936: 363 of 366 days1937: 363 of 365 days1938: 362 of 365 days1939: 356 of 365 days1940: 365 of 366 days1941: 365 of 365 days1942: 365 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: 362 of 365 days1950: 361 of 365 days1951: 363 of 365 days1952: 363 of 366 days1953: 329 of 365 days1954: 295 of 365 days1955: 357 of 365 days1956: 359 of 366 days1957: 354 of 365 days1958: 362 of 365 days1959: 361 of 365 days1960: 331 of 366 days1961: 364 of 365 days1962: 363 of 365 days1963: 364 of 365 days1964: 363 of 366 days1965: 362 of 365 days1966: 362 of 365 days1967: 363 of 365 days1968: 365 of 366 days1969: 363 of 365 days1970: 363 of 365 days1971: 364 of 365 days1972: 364 of 366 days1973: 361 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 335 of 366 days1977: 364 of 365 days1978: 365 of 365 days1979: 364 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 361 of 365 days1983: 364 of 365 days1984: 363 of 366 days1985: 363 of 365 days1986: 365 of 365 days1987: 363 of 365 days1988: 333 of 366 days1989: 364 of 365 days1990: 362 of 365 days1991: 361 of 365 days1992: 359 of 366 days1993: 357 of 365 days1994: 363 of 365 days1995: 362 of 365 days1996: 353 of 366 days1997: 359 of 365 days1998: 333 of 365 days1999: 330 of 365 days2000: 354 of 366 days2001: 358 of 365 days2002: 359 of 365 days2003: 350 of 365 days2004: 359 of 366 days2005: 329 of 365 days2006: 362 of 365 days2007: 337 of 365 days2008: 324 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 363 of 365 days2014: 364 of 365 days2015: 364 of 365 days2016: 365 of 366 days2017: 365 of 365 days2018: 363 of 365 days2019: 361 of 365 days2020: 361 of 366 days2021: 364 of 365 days2022: 217 of 365 days2023: 55 of 365 days2024: 343 of 366 days2025: 353 of 365 days2026: 262 of 365 days1900192019401960198020002020
130 years of record at 1 WSW Princeton, 1897 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1897, 1898, 1954, 2008, 2022, 2023, 2026.
Days with data per year at 1 WSW Princeton
YearDays with dataShare of yearComplete
189720456%No
18986016%No
189934394%Yes
190033692%Yes
190133893%Yes
190234795%Yes
190333291%Yes
190433892%Yes
190534895%Yes
190636299%Yes
190736299%Yes
190836098%Yes
190936299%Yes
1910364100%Yes
191136199%Yes
191236399%Yes
191336399%Yes
191436399%Yes
1915364100%Yes
1916366100%Yes
1917364100%Yes
191836399%Yes
1919364100%Yes
1920365100%Yes
1921364100%Yes
192235096%Yes
1923365100%Yes
192436499%Yes
192536399%Yes
1926365100%Yes
192736099%Yes
1928365100%Yes
192936299%Yes
193036299%Yes
1931364100%Yes
193236299%Yes
193336299%Yes
1934364100%Yes
193536399%Yes
193636399%Yes
193736399%Yes
193836299%Yes
193935698%Yes
1940365100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945364100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
194936299%Yes
195036199%Yes
195136399%Yes
195236399%Yes
195332990%Yes
195429581%No
195535798%Yes
195635998%Yes
195735497%Yes
195836299%Yes
195936199%Yes
196033190%Yes
1961364100%Yes
196236399%Yes
1963364100%Yes
196436399%Yes
196536299%Yes
196636299%Yes
196736399%Yes
1968365100%Yes
196936399%Yes
197036399%Yes
1971364100%Yes
197236499%Yes
197336199%Yes
1974365100%Yes
1975364100%Yes
197633592%Yes
1977364100%Yes
1978365100%Yes
1979364100%Yes
1980365100%Yes
1981365100%Yes
198236199%Yes
1983364100%Yes
198436399%Yes
198536399%Yes
1986365100%Yes
198736399%Yes
198833391%Yes
1989364100%Yes
199036299%Yes
199136199%Yes
199235998%Yes
199335798%Yes
199436399%Yes
199536299%Yes
199635396%Yes
199735998%Yes
199833391%Yes
199933090%Yes
200035497%Yes
200135898%Yes
200235998%Yes
200335096%Yes
200435998%Yes
200532990%Yes
200636299%Yes
200733792%Yes
200832489%No
2009365100%Yes
2010365100%Yes
2011364100%Yes
2012366100%Yes
201336399%Yes
2014364100%Yes
2015364100%Yes
2016365100%Yes
2017365100%Yes
201836399%Yes
201936199%Yes
202036199%Yes
2021364100%Yes
202221759%No
20235515%No
202434394%Yes
202535397%Yes
202626272%No

Latest Records

20
Latest records at 1 WSW Princeton
DateStationRecordValueBeat old record byOld record stoodSignificance
18 September 20261 WSW Princeton, USdaily high min (Provisional)23.3 C (73.9 F)0.5 C (0.9 F)95 years39 of 100 (Notable)
17 September 20261 WSW Princeton, USdaily high min (Provisional)23.9 C (75.0 F)0.6 C (1.1 F)48 years25 of 100 (Routine)
12 September 20261 WSW Princeton, USdaily rain (Provisional)74.9 mm (2.9 in)4.0 mm (0.16 in)60 years30 of 100 (Routine)
10 September 20261 WSW Princeton, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)88 years37 of 100 (Notable)
4 September 20261 WSW Princeton, USdaily high max (Tie, Provisional)38.3 C (100.9 F)tie100 years10 of 100 (Routine)
3 July 20261 WSW Princeton, USdaily high min (Tie)23.9 C (75.0 F)tie100 years10 of 100 (Routine)
28 June 20261 WSW Princeton, USdaily rain68.6 mm (2.7 in)2.1 mm (0.08 in)44 years24 of 100 (Routine)
22 June 20261 WSW Princeton, USdaily rain44.7 mm (1.8 in)3.3 mm (0.13 in)112 years42 of 100 (Notable)
19 May 20261 WSW Princeton, USdaily rain55.9 mm (2.2 in)22.9 mm (0.9 in)20 years31 of 100 (Routine)
14 April 20261 WSW Princeton, USdaily high min19.4 C (66.9 F)2.2 C (4.0 F)113 years44 of 100 (Notable)
4 April 20261 WSW Princeton, USdaily high min18.3 C (64.9 F)2.7 C (4.9 F)40 years27 of 100 (Routine)
27 March 20261 WSW Princeton, USdaily high max30.6 C (87.1 F)0.6 C (1.1 F)116 years40 of 100 (Notable)
23 March 20261 WSW Princeton, USdaily high max (Tie)31.1 C (88.0 F)tie116 years10 of 100 (Routine)
11 March 20261 WSW Princeton, USdaily high max (Tie)27.2 C (81.0 F)tie115 years10 of 100 (Routine)
11 March 20261 WSW Princeton, USdaily high min (Tie)16.7 C (62.1 F)tie36 years5 of 100 (Routine)
7 March 20261 WSW Princeton, USdaily high max (Tie)26.1 C (79.0 F)tie100 years10 of 100 (Routine)
5 March 20261 WSW Princeton, USdaily rain69.9 mm (2.8 in)19.1 mm (0.8 in)128 years53 of 100 (Notable)
30 January 20261 WSW Princeton, USdaily snow depth22.9 cm (9.0 in)5.1 cm (2.0 in)16 years22 of 100 (Routine)
29 January 20261 WSW Princeton, USdaily snow depth22.9 cm (9.0 in)2.6 cm (1.0 in)16 years18 of 100 (Routine)
28 January 20261 WSW Princeton, USdaily snow depth25.4 cm (10.0 in)5.1 cm (2.0 in)16 years22 of 100 (Routine)

Climate Trend

112 complete years, 1899 to 2025
Annual mean temperature at 1 WSW Princeton as warming stripes, 1899 to 2025 One stripe for each of 112 complete years at 1 WSW Princeton, 1899 to 2025. Blue stripes are years cooler than the station's own mean of 13.3 C (55.9 F); red stripes are warmer. The coolest year was 2014, at 11.2 C (52.2 F), and the warmest was 1921, at 15.5 C (59.9 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1899: 12.9 C, -0.4 C from the station mean1901: 12.3 C, -1.0 C from the station mean1902: 13.0 C, -0.3 C from the station mean1903: 12.9 C, -0.4 C from the station mean1904: 12.0 C, -1.3 C from the station mean1905: 13.0 C, -0.3 C from the station mean1906: 13.6 C, +0.3 C from the station mean1907: 12.8 C, -0.5 C from the station mean1908: 13.9 C, +0.6 C from the station mean1909: 13.2 C, -0.1 C from the station mean1910: 12.5 C, -0.8 C from the station mean1911: 14.5 C, +1.2 C from the station mean1912: 12.1 C, -1.2 C from the station mean1913: 14.5 C, +1.2 C from the station mean1914: 13.7 C, +0.4 C from the station mean1915: 13.5 C, +0.2 C from the station mean1916: 13.6 C, +0.3 C from the station mean1917: 11.9 C, -1.4 C from the station mean1918: 13.0 C, -0.3 C from the station mean1919: 13.6 C, +0.3 C from the station mean1920: 12.3 C, -1.0 C from the station mean1921: 15.5 C, +2.2 C from the station mean1922: 14.2 C, +0.9 C from the station mean1923: 14.2 C, +0.9 C from the station mean1924: 12.9 C, -0.4 C from the station mean1925: 14.1 C, +0.8 C from the station mean1926: 13.2 C, -0.1 C from the station mean1927: 14.0 C, +0.7 C from the station mean1928: 13.6 C, +0.3 C from the station mean1929: 13.4 C, +0.1 C from the station mean1930: 13.9 C, +0.6 C from the station mean1931: 15.5 C, +2.2 C from the station mean1932: 14.3 C, +1.0 C from the station mean1933: 14.6 C, +1.3 C from the station mean1934: 14.2 C, +0.9 C from the station mean1935: 13.8 C, +0.5 C from the station mean1936: 14.2 C, +0.9 C from the station mean1937: 13.5 C, +0.2 C from the station mean1938: 15.2 C, +1.9 C from the station mean1940: 12.8 C, -0.5 C from the station mean1941: 14.5 C, +1.2 C from the station mean1942: 13.6 C, +0.3 C from the station mean1943: 13.3 C, 0.0 C from the station mean1944: 13.9 C, +0.6 C from the station mean1945: 13.0 C, -0.3 C from the station mean1946: 14.4 C, +1.1 C from the station mean1947: 12.9 C, -0.4 C from the station mean1948: 13.3 C, 0.0 C from the station mean1949: 14.0 C, +0.7 C from the station mean1950: 12.5 C, -0.8 C from the station mean1951: 12.7 C, -0.6 C from the station mean1952: 14.1 C, +0.8 C from the station mean1955: 13.7 C, +0.4 C from the station mean1956: 14.0 C, +0.7 C from the station mean1957: 13.6 C, +0.3 C from the station mean1958: 12.0 C, -1.3 C from the station mean1959: 13.1 C, -0.2 C from the station mean1961: 12.9 C, -0.4 C from the station mean1962: 12.8 C, -0.5 C from the station mean1963: 12.5 C, -0.8 C from the station mean1964: 14.0 C, +0.7 C from the station mean1965: 14.0 C, +0.7 C from the station mean1966: 12.5 C, -0.8 C from the station mean1968: 12.4 C, -0.9 C from the station mean1969: 12.6 C, -0.7 C from the station mean1970: 13.4 C, +0.1 C from the station mean1971: 13.5 C, +0.2 C from the station mean1972: 13.2 C, -0.1 C from the station mean1973: 14.3 C, +1.0 C from the station mean1974: 13.2 C, -0.1 C from the station mean1975: 13.2 C, -0.1 C from the station mean1977: 12.7 C, -0.6 C from the station mean1978: 11.7 C, -1.6 C from the station mean1979: 11.7 C, -1.6 C from the station mean1980: 12.6 C, -0.7 C from the station mean1981: 12.7 C, -0.6 C from the station mean1982: 12.5 C, -0.8 C from the station mean1983: 12.8 C, -0.5 C from the station mean1984: 12.9 C, -0.4 C from the station mean1985: 12.5 C, -0.8 C from the station mean1986: 13.5 C, +0.2 C from the station mean1987: 13.9 C, +0.6 C from the station mean1989: 12.3 C, -1.0 C from the station mean1990: 14.0 C, +0.7 C from the station mean1991: 14.3 C, +1.0 C from the station mean1992: 13.1 C, -0.2 C from the station mean1993: 12.6 C, -0.7 C from the station mean1994: 13.3 C, 0.0 C from the station mean1995: 13.9 C, +0.6 C from the station mean1996: 12.2 C, -1.1 C from the station mean1997: 12.4 C, -0.9 C from the station mean2000: 12.5 C, -0.8 C from the station mean2001: 13.7 C, +0.4 C from the station mean2002: 13.8 C, +0.5 C from the station mean2003: 12.7 C, -0.6 C from the station mean2004: 13.5 C, +0.2 C from the station mean2006: 13.5 C, +0.2 C from the station mean2009: 12.5 C, -0.8 C from the station mean2010: 13.1 C, -0.2 C from the station mean2011: 13.3 C, 0.0 C from the station mean2012: 14.4 C, +1.1 C from the station mean2013: 11.8 C, -1.5 C from the station mean2014: 11.2 C, -2.1 C from the station mean2015: 12.7 C, -0.6 C from the station mean2016: 13.8 C, +0.5 C from the station mean2017: 13.7 C, +0.4 C from the station mean2018: 12.9 C, -0.4 C from the station mean2019: 12.9 C, -0.4 C from the station mean2020: 13.3 C, 0.0 C from the station mean2021: 13.4 C, +0.1 C from the station mean2024: 15.1 C, +1.8 C from the station mean2025: 13.8 C, +0.5 C from the station mean1899191019201930194019501960197019801990200020102020
One stripe for each of 112 complete years at 1 WSW Princeton, 1899 to 2025. Blue stripes are years cooler than the station's own mean of 13.3 C (55.9 F); red stripes are warmer. The coolest year was 2014, at 11.2 C (52.2 F), and the warmest was 1921, at 15.5 C (59.9 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at 1 WSW Princeton as warming stripes, 1899 to 2025
YearAnnual mean temperatureDifference from the station mean
189912.9 C-0.38 C
190112.3 C-1.01 C
190213.0 C-0.33 C
190312.9 C-0.38 C
190412.0 C-1.34 C
190513.0 C-0.26 C
190613.6 C+0.25 C
190712.8 C-0.46 C
190813.9 C+0.61 C
190913.2 C-0.15 C
191012.5 C-0.77 C
191114.5 C+1.19 C
191212.1 C-1.23 C
191314.5 C+1.16 C
191413.7 C+0.39 C
191513.5 C+0.19 C
191613.6 C+0.28 C
191711.9 C-1.42 C
191813.0 C-0.28 C
191913.6 C+0.29 C
192012.3 C-0.99 C
192115.5 C+2.21 C
192214.2 C+0.87 C
192314.2 C+0.92 C
192412.9 C-0.44 C
192514.1 C+0.75 C
192613.2 C-0.07 C
192714.0 C+0.67 C
192813.6 C+0.28 C
192913.4 C+0.07 C
193013.9 C+0.63 C
193115.5 C+2.16 C
193214.3 C+0.96 C
193314.6 C+1.32 C
193414.2 C+0.92 C
193513.8 C+0.52 C
193614.2 C+0.92 C
193713.5 C+0.17 C
193815.2 C+1.86 C
194012.8 C-0.54 C
194114.5 C+1.20 C
194213.6 C+0.27 C
194313.3 C-0.01 C
194413.9 C+0.57 C
194513.0 C-0.27 C
194614.4 C+1.14 C
194712.9 C-0.36 C
194813.3 C-0.03 C
194914.0 C+0.74 C
195012.5 C-0.78 C
195112.7 C-0.56 C
195214.1 C+0.76 C
195513.7 C+0.35 C
195614.0 C+0.67 C
195713.6 C+0.28 C
195812.0 C-1.34 C
195913.1 C-0.17 C
196112.9 C-0.43 C
196212.8 C-0.55 C
196312.5 C-0.79 C
196414.0 C+0.70 C
196514.0 C+0.65 C
196612.5 C-0.83 C
196812.4 C-0.89 C
196912.6 C-0.70 C
197013.4 C+0.08 C
197113.5 C+0.24 C
197213.2 C-0.07 C
197314.3 C+0.97 C
197413.2 C-0.13 C
197513.2 C-0.10 C
197712.7 C-0.64 C
197811.7 C-1.64 C
197911.7 C-1.64 C
198012.6 C-0.71 C
198112.7 C-0.63 C
198212.5 C-0.77 C
198312.8 C-0.46 C
198412.9 C-0.45 C
198512.5 C-0.83 C
198613.5 C+0.21 C
198713.9 C+0.55 C
198912.3 C-1.01 C
199014.0 C+0.68 C
199114.3 C+1.02 C
199213.1 C-0.20 C
199312.6 C-0.71 C
199413.3 C+0.03 C
199513.9 C+0.61 C
199612.2 C-1.15 C
199712.4 C-0.92 C
200012.5 C-0.79 C
200113.7 C+0.39 C
200213.8 C+0.52 C
200312.7 C-0.61 C
200413.5 C+0.19 C
200613.5 C+0.22 C
200912.5 C-0.78 C
201013.1 C-0.22 C
201113.3 C+0.04 C
201214.4 C+1.06 C
201311.8 C-1.51 C
201411.2 C-2.09 C
201512.7 C-0.60 C
201613.8 C+0.53 C
201713.7 C+0.37 C
201812.9 C-0.38 C
201912.9 C-0.44 C
202013.3 C+0.00 C
202113.4 C+0.05 C
202415.1 C+1.83 C
202513.8 C+0.50 C

The fitted trend in annual mean temperature here over 1899 to 2025 is -0.03 C (-0.08 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.06 F (-0.14 to 0.01) per decade. The slope is a straight line fitted to 112 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at 1 WSW Princeton
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.03 C (-0.08 to 0.01) per decade-0.06 F (-0.14 to 0.01) per decade1899 to 2025112Not clearly different from zero
Mean daily maximum-0.08 C (-0.13 to -0.04) per decade-0.2 F (-0.2 to -0.1) per decade1899 to 2025112Fall
Mean daily minimum0.02 C (-0.03 to 0.06) per decade0.03 F (-0.05 to 0.11) per decade1899 to 2025112Not 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 1 WSW Princeton: 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)130
Coldest night (TNn)-28.9 C (-20.0 F)1899-18.9 C (-2.0 F)131
Wettest day (Rx1day)266.7 mm (10.5 in)190567.6 mm (2.7 in)134
Wettest five days (Rx5day)272.0 mm (10.7 in)2006110.0 mm (4.3 in)134
Longest dry spell (CDD)52 days196320 days134

Hottest day (TXx)

Hottest day (TXx) at 1 WSW Princeton by year The hottest day of the year at 1 WSW Princeton, 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). 25303540451900192019401960198020002020Record: 45.0 C (113.0 F) in 1936
The hottest day of the year at 1 WSW Princeton, 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 1 WSW Princeton by year
YearHottest day (TXx)
1893n/a
1894n/a
1895n/a
1896n/a
189738.3 C (100.9 F)
189836.7 C (98.1 F)
189940.6 C (105.1 F)
190037.8 C (100.0 F)
190143.9 C (111.0 F)
190236.7 C (98.1 F)
190337.2 C (99.0 F)
190434.4 C (93.9 F)
190536.7 C (98.1 F)
190635.6 C (96.1 F)
190737.2 C (99.0 F)
190837.2 C (99.0 F)
190938.9 C (102.0 F)
191036.1 C (97.0 F)
191139.4 C (102.9 F)
191238.3 C (100.9 F)
191340.6 C (105.1 F)
191441.1 C (106.0 F)
191536.7 C (98.1 F)
191639.4 C (102.9 F)
191735.6 C (96.1 F)
191837.8 C (100.0 F)
191938.3 C (100.9 F)
192035.0 C (95.0 F)
192136.7 C (98.1 F)
192237.2 C (99.0 F)
192336.7 C (98.1 F)
192437.8 C (100.0 F)
192540.6 C (105.1 F)
192640.0 C (104.0 F)
192737.2 C (99.0 F)
192837.2 C (99.0 F)
192937.8 C (100.0 F)
193043.3 C (109.9 F)
193140.6 C (105.1 F)
193238.9 C (102.0 F)
193338.9 C (102.0 F)
193441.1 C (106.0 F)
193538.3 C (100.9 F)
193645.0 C (113.0 F)
193737.8 C (100.0 F)
193838.3 C (100.9 F)
193939.4 C (102.9 F)
194040.0 C (104.0 F)
194138.3 C (100.9 F)
194237.2 C (99.0 F)
194338.9 C (102.0 F)
194438.3 C (100.9 F)
194536.1 C (97.0 F)
194636.7 C (98.1 F)
194737.8 C (100.0 F)
194836.1 C (97.0 F)
194936.1 C (97.0 F)
195033.9 C (93.0 F)
195136.7 C (98.1 F)
195239.4 C (102.9 F)
195340.0 C (104.0 F)
195440.0 C (104.0 F)
195536.7 C (98.1 F)
195637.2 C (99.0 F)
195735.0 C (95.0 F)
195833.3 C (91.9 F)
195934.4 C (93.9 F)
196036.1 C (97.0 F)
196133.9 C (93.0 F)
196237.2 C (99.0 F)
196336.1 C (97.0 F)
196437.8 C (100.0 F)
196536.7 C (98.1 F)
196637.8 C (100.0 F)
196735.6 C (96.1 F)
196835.6 C (96.1 F)
196936.7 C (98.1 F)
197036.1 C (97.0 F)
197136.7 C (98.1 F)
197235.6 C (96.1 F)
197335.0 C (95.0 F)
197435.0 C (95.0 F)
197535.0 C (95.0 F)
197636.1 C (97.0 F)
197736.1 C (97.0 F)
197837.8 C (100.0 F)
197935.0 C (95.0 F)
198038.9 C (102.0 F)
198135.6 C (96.1 F)
198235.6 C (96.1 F)
198338.9 C (102.0 F)
198435.6 C (96.1 F)
198535.6 C (96.1 F)
198636.1 C (97.0 F)
198737.2 C (99.0 F)
198838.9 C (102.0 F)
198935.6 C (96.1 F)
199036.7 C (98.1 F)
199138.3 C (100.9 F)
199235.0 C (95.0 F)
199337.2 C (99.0 F)
199435.6 C (96.1 F)
199537.8 C (100.0 F)
199635.0 C (95.0 F)
199736.7 C (98.1 F)
199835.6 C (96.1 F)
199937.8 C (100.0 F)
200035.6 C (96.1 F)
200135.6 C (96.1 F)
200237.2 C (99.0 F)
200336.7 C (98.1 F)
200434.4 C (93.9 F)
200537.8 C (100.0 F)
200636.7 C (98.1 F)
200738.3 C (100.9 F)
200835.0 C (95.0 F)
200935.0 C (95.0 F)
201038.9 C (102.0 F)
201137.8 C (100.0 F)
201241.1 C (106.0 F)
201335.6 C (96.1 F)
201434.4 C (93.9 F)
201534.4 C (93.9 F)
201634.4 C (93.9 F)
201736.7 C (98.1 F)
201835.6 C (96.1 F)
201935.0 C (95.0 F)
202035.0 C (95.0 F)
202134.4 C (93.9 F)
202237.2 C (99.0 F)
202327.2 C (81.0 F)
202436.7 C (98.1 F)
202536.1 C (97.0 F)
202638.3 C (100.9 F)

Coldest night (TNn)

Coldest night (TNn) at 1 WSW Princeton by year The coldest night of the year at 1 WSW Princeton, 1893 to 2026. The record is -28.9 C (-20.0 F) in 1899, marked on the chart; the median year is -18.9 C (-2.0 F). -30-20-1001900192019401960198020002020Record: -28.9 C (-20.0 F) in 1899
The coldest night of the year at 1 WSW Princeton, 1893 to 2026. The record is -28.9 C (-20.0 F) in 1899, marked on the chart; the median year is -18.9 C (-2.0 F).
Coldest night (TNn) at 1 WSW Princeton by year
YearColdest night (TNn)
1893-25.0 C (-13.0 F)
1894n/a
1895n/a
1896n/a
1897-7.8 C (18.0 F)
1898-2.2 C (28.0 F)
1899-28.9 C (-20.0 F)
1900-21.1 C (-6.0 F)
1901-22.2 C (-8.0 F)
1902-17.8 C (0.0 F)
1903-21.1 C (-6.0 F)
1904-26.7 C (-16.1 F)
1905-25.6 C (-14.1 F)
1906-20.6 C (-5.1 F)
1907-15.6 C (3.9 F)
1908-15.0 C (5.0 F)
1909-20.0 C (-4.0 F)
1910-24.4 C (-11.9 F)
1911-17.8 C (0.0 F)
1912-27.2 C (-17.0 F)
1913-15.0 C (5.0 F)
1914-23.3 C (-9.9 F)
1915-17.2 C (1.0 F)
1916-21.1 C (-6.0 F)
1917-24.4 C (-11.9 F)
1918-27.8 C (-18.0 F)
1919-17.8 C (0.0 F)
1920-21.7 C (-7.1 F)
1921-8.9 C (16.0 F)
1922-11.7 C (10.9 F)
1923-12.8 C (9.0 F)
1924-24.4 C (-11.9 F)
1925-20.0 C (-4.0 F)
1926-19.4 C (-2.9 F)
1927-20.6 C (-5.1 F)
1928-20.6 C (-5.1 F)
1929-22.2 C (-8.0 F)
1930-24.4 C (-11.9 F)
1931-11.7 C (10.9 F)
1932-18.9 C (-2.0 F)
1933-18.9 C (-2.0 F)
1934-23.3 C (-9.9 F)
1935-20.6 C (-5.1 F)
1936-25.6 C (-14.1 F)
1937-13.9 C (7.0 F)
1938-17.8 C (0.0 F)
1939-18.3 C (-0.9 F)
1940-26.1 C (-15.0 F)
1941-12.2 C (10.0 F)
1942-23.9 C (-11.0 F)
1943-18.9 C (-2.0 F)
1944-15.0 C (5.0 F)
1945-18.9 C (-2.0 F)
1946-17.8 C (0.0 F)
1947-15.6 C (3.9 F)
1948-20.6 C (-5.1 F)
1949-15.0 C (5.0 F)
1950-18.3 C (-0.9 F)
1951-26.7 C (-16.1 F)
1952-15.0 C (5.0 F)
1953-12.2 C (10.0 F)
1954-14.4 C (6.1 F)
1955-19.4 C (-2.9 F)
1956-14.4 C (6.1 F)
1957-17.8 C (0.0 F)
1958-20.6 C (-5.1 F)
1959-20.0 C (-4.0 F)
1960-21.7 C (-7.1 F)
1961-22.2 C (-8.0 F)
1962-24.4 C (-11.9 F)
1963-27.2 C (-17.0 F)
1964-19.4 C (-2.9 F)
1965-23.3 C (-9.9 F)
1966-22.8 C (-9.0 F)
1967-21.1 C (-6.0 F)
1968-22.8 C (-9.0 F)
1969-18.3 C (-0.9 F)
1970-22.2 C (-8.0 F)
1971-18.9 C (-2.0 F)
1972-23.3 C (-9.9 F)
1973-21.1 C (-6.0 F)
1974-16.7 C (1.9 F)
1975-13.9 C (7.0 F)
1976-20.6 C (-5.1 F)
1977-27.8 C (-18.0 F)
1978-20.6 C (-5.1 F)
1979-22.8 C (-9.0 F)
1980-20.0 C (-4.0 F)
1981-17.8 C (0.0 F)
1982-25.6 C (-14.1 F)
1983-23.3 C (-9.9 F)
1984-25.6 C (-14.1 F)
1985-28.3 C (-18.9 F)
1986-18.3 C (-0.9 F)
1987-15.0 C (5.0 F)
1988-17.8 C (0.0 F)
1989-26.1 C (-15.0 F)
1990-15.6 C (3.9 F)
1991-13.3 C (8.1 F)
1992-15.0 C (5.0 F)
1993-21.1 C (-6.0 F)
1994-26.1 C (-15.0 F)
1995-18.3 C (-0.9 F)
1996-23.3 C (-9.9 F)
1997-20.0 C (-4.0 F)
1998-12.8 C (9.0 F)
1999-13.9 C (7.0 F)
2000-18.9 C (-2.0 F)
2001-16.7 C (1.9 F)
2002-12.8 C (9.0 F)
2003-18.3 C (-0.9 F)
2004-22.2 C (-8.0 F)
2005-14.4 C (6.1 F)
2006-15.6 C (3.9 F)
2007-12.8 C (9.0 F)
2008-16.1 C (3.0 F)
2009-18.9 C (-2.0 F)
2010-18.9 C (-2.0 F)
2011-17.2 C (1.0 F)
2012-13.9 C (7.0 F)
2013-17.8 C (0.0 F)
2014-21.7 C (-7.1 F)
2015-20.0 C (-4.0 F)
2016-15.6 C (3.9 F)
2017-18.9 C (-2.0 F)
2018-20.6 C (-5.1 F)
2019-18.9 C (-2.0 F)
2020-13.3 C (8.1 F)
2021-19.4 C (-2.9 F)
2022-7.8 C (18.0 F)
2023-7.8 C (18.0 F)
2024-17.2 C (1.0 F)
2025-16.1 C (3.0 F)
2026-17.8 C (0.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at 1 WSW Princeton by year The wettest day of the year at 1 WSW Princeton, 1893 to 2026. The record is 266.7 mm (10.5 in) in 1905, marked on the chart; the median year is 67.6 mm (2.7 in). 01002003001900192019401960198020002020Record: 266.7 mm (10.5 in) in 1905
The wettest day of the year at 1 WSW Princeton, 1893 to 2026. The record is 266.7 mm (10.5 in) in 1905, marked on the chart; the median year is 67.6 mm (2.7 in).
Wettest day (Rx1day) at 1 WSW Princeton by year
YearWettest day (Rx1day)
189348.3 mm (1.9 in)
189448.3 mm (1.9 in)
189562.2 mm (2.4 in)
1896100.3 mm (3.9 in)
189750.8 mm (2.0 in)
189897.8 mm (3.9 in)
189949.5 mm (1.9 in)
190064.8 mm (2.6 in)
190166.0 mm (2.6 in)
190253.3 mm (2.1 in)
190366.0 mm (2.6 in)
190485.1 mm (3.4 in)
1905266.7 mm (10.5 in)
190692.7 mm (3.6 in)
190750.8 mm (2.0 in)
1908139.7 mm (5.5 in)
190953.3 mm (2.1 in)
191088.9 mm (3.5 in)
191141.7 mm (1.6 in)
1912100.6 mm (4.0 in)
1913111.0 mm (4.4 in)
191442.2 mm (1.7 in)
191553.8 mm (2.1 in)
191653.6 mm (2.1 in)
191758.9 mm (2.3 in)
191854.4 mm (2.1 in)
191975.2 mm (3.0 in)
192047.5 mm (1.9 in)
192143.2 mm (1.7 in)
192259.9 mm (2.4 in)
192367.3 mm (2.6 in)
192457.9 mm (2.3 in)
192549.5 mm (1.9 in)
192653.1 mm (2.1 in)
192786.6 mm (3.4 in)
192872.4 mm (2.9 in)
192962.2 mm (2.4 in)
193078.0 mm (3.1 in)
193191.7 mm (3.6 in)
193296.5 mm (3.8 in)
193368.6 mm (2.7 in)
193471.1 mm (2.8 in)
1935104.4 mm (4.1 in)
193668.1 mm (2.7 in)
193796.5 mm (3.8 in)
193894.5 mm (3.7 in)
193947.0 mm (1.9 in)
194055.4 mm (2.2 in)
194143.7 mm (1.7 in)
194243.2 mm (1.7 in)
194389.9 mm (3.5 in)
194452.3 mm (2.1 in)
194595.8 mm (3.8 in)
1946101.6 mm (4.0 in)
194758.4 mm (2.3 in)
194871.6 mm (2.8 in)
194984.6 mm (3.3 in)
195085.9 mm (3.4 in)
195149.8 mm (2.0 in)
195259.7 mm (2.4 in)
195338.1 mm (1.5 in)
195453.3 mm (2.1 in)
195567.6 mm (2.7 in)
195643.7 mm (1.7 in)
195754.6 mm (2.1 in)
195854.6 mm (2.1 in)
1959115.6 mm (4.6 in)
196070.4 mm (2.8 in)
1961119.4 mm (4.7 in)
196250.8 mm (2.0 in)
196352.8 mm (2.1 in)
1964124.2 mm (4.9 in)
196572.9 mm (2.9 in)
196652.1 mm (2.1 in)
1967123.7 mm (4.9 in)
196850.8 mm (2.0 in)
196958.4 mm (2.3 in)
197080.8 mm (3.2 in)
197164.0 mm (2.5 in)
197253.3 mm (2.1 in)
197344.2 mm (1.7 in)
197459.7 mm (2.4 in)
197577.2 mm (3.0 in)
197671.6 mm (2.8 in)
197786.4 mm (3.4 in)
197850.8 mm (2.0 in)
1979210.6 mm (8.3 in)
198058.9 mm (2.3 in)
198159.4 mm (2.3 in)
198288.9 mm (3.5 in)
198387.1 mm (3.4 in)
198465.0 mm (2.6 in)
198567.6 mm (2.7 in)
198646.0 mm (1.8 in)
198738.1 mm (1.5 in)
198884.8 mm (3.3 in)
198961.5 mm (2.4 in)
199089.7 mm (3.5 in)
199142.9 mm (1.7 in)
199254.6 mm (2.1 in)
1993109.0 mm (4.3 in)
199455.6 mm (2.2 in)
199579.2 mm (3.1 in)
199690.4 mm (3.6 in)
199770.9 mm (2.8 in)
199863.0 mm (2.5 in)
199982.3 mm (3.2 in)
200091.4 mm (3.6 in)
2001117.9 mm (4.6 in)
2002108.0 mm (4.3 in)
200350.8 mm (2.0 in)
2004128.3 mm (5.1 in)
200590.2 mm (3.6 in)
200685.6 mm (3.4 in)
2007123.2 mm (4.9 in)
2008111.8 mm (4.4 in)
200969.1 mm (2.7 in)
201069.1 mm (2.7 in)
2011109.2 mm (4.3 in)
201261.0 mm (2.4 in)
2013147.3 mm (5.8 in)
201483.8 mm (3.3 in)
201574.9 mm (2.9 in)
201657.2 mm (2.3 in)
201778.7 mm (3.1 in)
2018111.8 mm (4.4 in)
2019101.6 mm (4.0 in)
202066.0 mm (2.6 in)
202169.9 mm (2.8 in)
202259.7 mm (2.4 in)
202341.1 mm (1.6 in)
202450.8 mm (2.0 in)
202563.8 mm (2.5 in)
202674.9 mm (2.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at 1 WSW Princeton by year The wettest five days of the year at 1 WSW Princeton, 1893 to 2026. The record is 272.0 mm (10.7 in) in 2006, marked on the chart; the median year is 110.0 mm (4.3 in). 01002003001900192019401960198020002020Record: 272.0 mm (10.7 in) in 2006
The wettest five days of the year at 1 WSW Princeton, 1893 to 2026. The record is 272.0 mm (10.7 in) in 2006, marked on the chart; the median year is 110.0 mm (4.3 in).
Wettest five days (Rx5day) at 1 WSW Princeton by year
YearWettest five days (Rx5day)
189392.2 mm (3.6 in)
189462.8 mm (2.5 in)
189587.6 mm (3.4 in)
1896100.3 mm (3.9 in)
189782.6 mm (3.3 in)
1898129.6 mm (5.1 in)
189966.0 mm (2.6 in)
1900109.2 mm (4.3 in)
190176.2 mm (3.0 in)
190299.1 mm (3.9 in)
190392.1 mm (3.6 in)
1904128.2 mm (5.0 in)
1905266.7 mm (10.5 in)
1906138.5 mm (5.5 in)
190797.8 mm (3.9 in)
1908154.9 mm (6.1 in)
190993.5 mm (3.7 in)
1910164.0 mm (6.5 in)
191173.6 mm (2.9 in)
1912114.5 mm (4.5 in)
1913191.3 mm (7.5 in)
191475.7 mm (3.0 in)
1915122.9 mm (4.8 in)
1916130.9 mm (5.2 in)
191782.7 mm (3.3 in)
1918128.8 mm (5.1 in)
1919148.3 mm (5.8 in)
1920100.9 mm (4.0 in)
1921116.1 mm (4.6 in)
1922125.9 mm (5.0 in)
192393.2 mm (3.7 in)
192471.2 mm (2.8 in)
192555.9 mm (2.2 in)
192684.1 mm (3.3 in)
1927146.2 mm (5.8 in)
1928106.6 mm (4.2 in)
192981.3 mm (3.2 in)
193086.6 mm (3.4 in)
193194.2 mm (3.7 in)
1932108.2 mm (4.3 in)
1933133.4 mm (5.3 in)
1934104.9 mm (4.1 in)
1935115.9 mm (4.6 in)
193689.9 mm (3.5 in)
1937168.7 mm (6.6 in)
1938110.5 mm (4.4 in)
193996.5 mm (3.8 in)
194091.0 mm (3.6 in)
194156.2 mm (2.2 in)
194282.1 mm (3.2 in)
1943110.0 mm (4.3 in)
194485.7 mm (3.4 in)
1945175.5 mm (6.9 in)
1946176.7 mm (7.0 in)
194766.3 mm (2.6 in)
1948106.4 mm (4.2 in)
1949116.5 mm (4.6 in)
1950138.2 mm (5.4 in)
195180.0 mm (3.1 in)
195285.1 mm (3.4 in)
195353.8 mm (2.1 in)
1954100.4 mm (4.0 in)
1955100.6 mm (4.0 in)
195655.9 mm (2.2 in)
1957129.6 mm (5.1 in)
1958112.1 mm (4.4 in)
1959146.3 mm (5.8 in)
196083.6 mm (3.3 in)
1961236.2 mm (9.3 in)
196295.5 mm (3.8 in)
196367.3 mm (2.6 in)
1964174.9 mm (6.9 in)
1965121.4 mm (4.8 in)
196693.2 mm (3.7 in)
1967136.2 mm (5.4 in)
196876.4 mm (3.0 in)
1969113.6 mm (4.5 in)
1970129.0 mm (5.1 in)
197168.8 mm (2.7 in)
1972165.9 mm (6.5 in)
1973100.9 mm (4.0 in)
197485.6 mm (3.4 in)
1975109.9 mm (4.3 in)
1976131.0 mm (5.2 in)
1977101.9 mm (4.0 in)
197879.8 mm (3.1 in)
1979254.8 mm (10.0 in)
198092.9 mm (3.7 in)
1981152.4 mm (6.0 in)
1982121.4 mm (4.8 in)
1983237.7 mm (9.4 in)
198485.6 mm (3.4 in)
1985124.8 mm (4.9 in)
1986112.1 mm (4.4 in)
198778.8 mm (3.1 in)
1988115.3 mm (4.5 in)
1989124.5 mm (4.9 in)
1990133.9 mm (5.3 in)
199167.6 mm (2.7 in)
199285.1 mm (3.4 in)
1993160.6 mm (6.3 in)
199494.1 mm (3.7 in)
1995117.3 mm (4.6 in)
1996131.6 mm (5.2 in)
1997102.9 mm (4.1 in)
199898.8 mm (3.9 in)
1999116.8 mm (4.6 in)
2000152.6 mm (6.0 in)
2001126.3 mm (5.0 in)
2002145.5 mm (5.7 in)
2003122.8 mm (4.8 in)
2004165.1 mm (6.5 in)
2005138.7 mm (5.5 in)
2006272.0 mm (10.7 in)
2007145.8 mm (5.7 in)
2008156.3 mm (6.2 in)
200998.2 mm (3.9 in)
2010133.8 mm (5.3 in)
2011148.6 mm (5.9 in)
201283.1 mm (3.3 in)
2013175.2 mm (6.9 in)
2014102.9 mm (4.1 in)
2015119.4 mm (4.7 in)
2016108.9 mm (4.3 in)
2017152.3 mm (6.0 in)
2018212.5 mm (8.4 in)
2019147.2 mm (5.8 in)
2020110.8 mm (4.4 in)
202193.0 mm (3.7 in)
202291.2 mm (3.6 in)
202341.1 mm (1.6 in)
2024106.0 mm (4.2 in)
2025172.8 mm (6.8 in)
2026141.5 mm (5.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at 1 WSW Princeton by year The longest dry spell of the year at 1 WSW Princeton, 1893 to 2026. The record is 52 days in 1963, marked on the chart; the median year is 20 days. 02040601900192019401960198020002020Record: 52 days in 1963
The longest dry spell of the year at 1 WSW Princeton, 1893 to 2026. The record is 52 days in 1963, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at 1 WSW Princeton by year
YearLongest dry spell (CDD)
189330 days
189420 days
189520 days
189623 days
189727 days
189818 days
189919 days
190026 days
190123 days
190220 days
190324 days
190429 days
190517 days
190620 days
190721 days
190833 days
190916 days
191020 days
191121 days
191221 days
191320 days
191429 days
191521 days
191619 days
191727 days
191825 days
191943 days
192027 days
192124 days
192218 days
192326 days
192440 days
192521 days
192619 days
192726 days
192822 days
192917 days
193027 days
193120 days
193216 days
193327 days
193419 days
193518 days
193626 days
193718 days
193830 days
193924 days
194031 days
194115 days
194216 days
194330 days
194433 days
194519 days
194619 days
194729 days
194819 days
194921 days
195016 days
195115 days
195227 days
195322 days
195419 days
195525 days
195620 days
195722 days
195820 days
195920 days
196019 days
196117 days
196219 days
196352 days
196427 days
196520 days
196629 days
196725 days
196818 days
196917 days
197015 days
197117 days
197214 days
197316 days
197422 days
197520 days
197618 days
197718 days
197818 days
197914 days
198020 days
198117 days
198216 days
198326 days
198420 days
198517 days
198616 days
198713 days
198831 days
198919 days
199013 days
199120 days
199219 days
199317 days
199420 days
199521 days
199625 days
199716 days
199839 days
199939 days
200021 days
200125 days
200214 days
200338 days
200438 days
200528 days
200617 days
200722 days
200827 days
200916 days
201020 days
201117 days
201228 days
201319 days
201416 days
201521 days
201627 days
201736 days
201817 days
201928 days
202021 days
202119 days
20228 days
202325 days
202431 days
202518 days
202620 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

112 years with a frost

Across 112 years with a frost, the median last spring frost at 1 WSW Princeton falls on 14 April and the median first autumn frost on 24 October, which leaves a median of 191 days between them.

In 1989 to 2025 the median growing season was 199 days. That is 15 days more than in 1899 to 1929.

Fitted over all years, the growing season changes by +2.0 days per decade at this station.

Frost dates and growing season at 1 WSW Princeton
MeasureMedian, all yearsEarliest period (1899 to 1929)Recent period (1989 to 2025)Recent against earliestFitted trend
Last spring frost14 April18 April10 April8 days earlier-0.9 days per decade
First autumn frost24 October21 October28 October7 days later+1.1 days per decade
Growing days191 days184 days199 days15 days more+2.0 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

128 years, 1894 to 2025

A day with at least 68.4 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 191.7 mm (7.5 in) of rain is expected about once in 100 years.

Rainfall return levels at 1 WSW Princeton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.4 mm (2.7 in)
5 years92.9 mm (3.7 in)
10 years112.1 mm (4.4 in)
25 years140.3 mm (5.5 in)
50 years164.5 mm (6.5 in)
100 years191.7 mm (7.5 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 128 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: 266.7 mm (10.5 in) in 1905; 210.6 mm (8.3 in) in 1979; 147.3 mm (5.8 in) in 2013.

Station Changes

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

Climate Twins

2009 to 2025 against 1961 to 1990

Over 2009 to 2025, 1 WSW Princeton had a mean temperature of 13.2 C (55.7 F) and 1,280.3 mm (50.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Hopkinsville (United States, 167 km away), Russellville (United States, 178 km away) and Greensburg (United States, 220 km away).

Climate twins of 1 WSW Princeton: stations whose 1961 to 1990 climate is closest to its 2009 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
HopkinsvilleUnited States167 km (104 mi)13.5 C (56.4 F)1,309.5 mm (51.6 in)0.66
RussellvilleUnited States178 km (111 mi)13.4 C (56.2 F)1,306.1 mm (51.4 in)0.74
GreensburgUnited States220 km (137 mi)13.3 C (55.9 F)1,353.0 mm (53.3 in)0.78

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 1 WSW Princeton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for 1 WSW Princeton 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).