Built 2026-10-19 (19 October 2026)

Widtsoe #3 Weather Records (USS0011M03S)

Record envelope, standing records and threshold days for Widtsoe #3 (USS0011M03S), Utah, United States, with 49 years of record.

Key Facts for Widtsoe #3

  • Widtsoe #3 (USS0011M03S) is a weather station in Utah, United States at 37.84 latitude and -111.88 longitude, 2,938 m (9,640 ft) above sea level.
  • The station reports from 1978 to 2026, 49 years of record.
  • 1,464 records set at Widtsoe #3 still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Widtsoe #3 set a daily record precipitation of 45.7 mm (1.8 in) on 11 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Utah, United States, 37.84 latitude, -111.88 longitude.
  • Elevation: 2,938 m (9,640 ft).
  • Period of record: 1978 to 2026, 49 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

19 days at or beyond a record
Daily record high and record low at Widtsoe #3, with 2026 drawn through them The band shows the record high and record low for each calendar day at Widtsoe #3. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Widtsoe #3. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Widtsoe #3, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.4 C (54.3 F)-25.5 C (-13.9 F)8.2 C (46.8 F)-17.2 C (1.0 F)
Feb14.9 C (58.8 F)-27.7 C (-17.9 F)10.2 C (50.4 F)-16.8 C (1.8 F)
Mar20.4 C (68.7 F)-19.2 C (-2.6 F)20.4 C (68.7 F)-12.1 C (10.2 F)
Apr21.1 C (70.0 F)-17.0 C (1.4 F)15.4 C (59.7 F)-13.8 C (7.2 F)
May24.7 C (76.5 F)-12.4 C (9.7 F)22.7 C (72.9 F)-7.0 C (19.4 F)
Jun29.2 C (84.6 F)-4.8 C (23.4 F)26.3 C (79.3 F)1.4 C (34.5 F)
Jul30.9 C (87.6 F)4.4 C (39.9 F)29.4 C (84.9 F)6.2 C (43.2 F)
Aug30.7 C (87.3 F)1.5 C (34.7 F)27.3 C (81.1 F)5.2 C (41.4 F)
Sep28.9 C (84.0 F)-8.3 C (17.1 F)21.8 C (71.2 F)1.9 C (35.4 F)
Oct22.9 C (73.2 F)-19.6 C (-3.3 F)18.6 C (65.5 F)-3.5 C (25.7 F)
Nov17.1 C (62.8 F)-21.5 C (-6.7 F)n/an/a
Dec12.4 C (54.3 F)-23.4 C (-10.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Widtsoe #3 by the year they were set 1,464 records at Widtsoe #3 still stand. 2020 holds the most, with 96. 02550751002003: 272004: 632005: 622006: 542007: 612008: 722009: 402010: 632011: 602012: 492013: 832014: 382015: 812016: 612017: 662018: 472019: 572020: 962021: 762022: 682023: 522024: 612025: 662026: 6120032006200920122015201820212024
1,464 records at Widtsoe #3 still stand. 2020 holds the most, with 96.
Standing records at Widtsoe #3 by the year they were set
Year setStanding records
200327
200463
200562
200654
200761
200872
200940
201063
201160
201249
201383
201438
201581
201661
201766
201847
201957
202096
202176
202268
202352
202461
202566
202661

Wettest Day of Each Month

Jan: 81.3 mm (3.2 in)
Record daily precipitation for each month at Widtsoe #3 The wettest day on record for each calendar month at Widtsoe #3. The most was 81.3 mm (3.2 in) on 30 January 1993. 0255075100 Jan: 81.3 mm (3.2 in), 30 January 1993 Jan Feb: 55.9 mm (2.2 in), 19 February 2011 Feb Mar: 78.7 mm (3.1 in), 15 March 2024 Mar Apr: 40.6 mm (1.6 in), 23 April 1999 Apr May: 40.6 mm (1.6 in), 27 May 2019 May Jun: 38.1 mm (1.5 in), 6 June 2020 Jun Jul: 76.2 mm (3.0 in), 21 July 2026 Jul Aug: 55.9 mm (2.2 in), 28 August 2000 Aug Sep: 68.6 mm (2.7 in), 10 September 2013 Sep Oct: 78.7 mm (3.1 in), 5 October 2010 Oct Nov: 63.5 mm (2.5 in), 22 November 2013 Nov Dec: 48.3 mm (1.9 in), 22 December 2010 Dec
The wettest day on record for each calendar month at Widtsoe #3. The most was 81.3 mm (3.2 in) on 30 January 1993.
Record daily precipitation for each month at Widtsoe #3
MonthRecord daily precipitation (mm)Date
Jan81.3 mm (3.2 in)30 January 1993
Feb55.9 mm (2.2 in)19 February 2011
Mar78.7 mm (3.1 in)15 March 2024
Apr40.6 mm (1.6 in)23 April 1999
May40.6 mm (1.6 in)27 May 2019
Jun38.1 mm (1.5 in)6 June 2020
Jul76.2 mm (3.0 in)21 July 2026
Aug55.9 mm (2.2 in)28 August 2000
Sep68.6 mm (2.7 in)10 September 2013
Oct78.7 mm (3.1 in)5 October 2010
Nov63.5 mm (2.5 in)22 November 2013
Dec48.3 mm (1.9 in)22 December 2010

Period of Record Coverage

2003 to 2026
Days with data per year at Widtsoe #3 24 years of record at Widtsoe #3, 2003 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2003, 2026. 2003: 153 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 364 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 287 of 365 days20052010201520202025
24 years of record at Widtsoe #3, 2003 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2003, 2026.
Days with data per year at Widtsoe #3
YearDays with dataShare of yearComplete
200315342%No
2004366100%Yes
2005365100%Yes
2006364100%Yes
2007364100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628779%No

Latest Records

20
Latest records at Widtsoe #3
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Widtsoe #3, USdaily rain (Provisional)45.7 mm (1.8 in)2.5 mm (0.10 in)44 years19 of 100 (Routine)
28 September 2026Widtsoe #3, USdaily rain (Provisional)25.4 mm (1.0 in)7.6 mm (0.30 in)12 years14 of 100 (Routine)
6 September 2026Widtsoe #3, USdaily rain (Provisional)12.7 mm (0.5 in)2.5 mm (0.10 in)36 years16 of 100 (Routine)
31 August 2026Widtsoe #3, USdaily rain (Provisional)22.9 mm (0.9 in)7.7 mm (0.30 in)28 years20 of 100 (Routine)
21 July 2026Widtsoe #3, USmonthly rain76.2 mm (3.0 in)38.1 mm (1.5 in)1 year54 of 100 (Notable)
25 June 2026Widtsoe #3, USdaily rain7.6 mm (0.30 in)2.5 mm (0.10 in)16 years14 of 100 (Routine)
17 May 2026Widtsoe #3, USdaily rain (Tie)10.2 mm (0.4 in)tie37 years3 of 100 (Routine)
13 April 2026Widtsoe #3, USdaily rain10.2 mm (0.4 in)2.6 mm (0.10 in)13 years12 of 100 (Routine)
19 November 2025Widtsoe #3, USdaily rain27.9 mm (1.1 in)12.7 mm (0.5 in)46 years30 of 100 (Routine)
18 November 2025Widtsoe #3, USdaily rain20.3 mm (0.8 in)7.6 mm (0.30 in)31 years20 of 100 (Routine)
16 November 2025Widtsoe #3, USdaily rain30.5 mm (1.2 in)12.7 mm (0.5 in)10 years20 of 100 (Routine)
9 October 2025Widtsoe #3, USdaily rain17.8 mm (0.7 in)7.6 mm (0.30 in)40 years20 of 100 (Routine)
29 August 2025Widtsoe #3, USdaily rain30.5 mm (1.2 in)20.3 mm (0.8 in)14 years33 of 100 (Routine)
17 July 2025Widtsoe #3, USmonthly rain38.1 mm (1.5 in)2.5 mm (0.10 in)37 years29 of 100 (Routine)
2 July 2025Widtsoe #3, USdaily rain20.3 mm (0.8 in)12.7 mm (0.5 in)16 years20 of 100 (Routine)
4 June 2025Widtsoe #3, USdaily rain (Tie)5.1 mm (0.20 in)tie26 years2 of 100 (Routine)
5 May 2025Widtsoe #3, USdaily rain17.8 mm (0.7 in)12.7 mm (0.5 in)30 years20 of 100 (Routine)
17 April 2025Widtsoe #3, USdaily rain (Tie)7.6 mm (0.30 in)tie30 years3 of 100 (Routine)
13 March 2025Widtsoe #3, USdaily rain (Tie)17.8 mm (0.7 in)tie44 years4 of 100 (Routine)
26 November 2024Widtsoe #3, USdaily rain25.4 mm (1.0 in)12.7 mm (0.5 in)46 years30 of 100 (Routine)

Climate Trend

22 complete years, 2004 to 2025
Annual mean temperature at Widtsoe #3 as warming stripes, 2004 to 2025 One stripe for each of 22 complete years at Widtsoe #3, 2004 to 2025. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 2011, at 4.0 C (39.3 F), and the warmest was 2020, at 6.1 C (42.9 F). The strongest colour marks a difference of 1.1 C (2.0 F). 2004: 4.4 C, -0.7 C from the station mean2005: 4.8 C, -0.3 C from the station mean2006: 4.7 C, -0.4 C from the station mean2007: 5.3 C, +0.2 C from the station mean2008: 4.4 C, -0.7 C from the station mean2009: 4.6 C, -0.4 C from the station mean2010: 4.4 C, -0.7 C from the station mean2011: 4.0 C, -1.0 C from the station mean2012: 5.6 C, +0.5 C from the station mean2013: 4.4 C, -0.7 C from the station mean2014: 5.4 C, +0.3 C from the station mean2015: 5.4 C, +0.3 C from the station mean2016: 5.5 C, +0.4 C from the station mean2017: 6.0 C, +0.9 C from the station mean2018: 5.6 C, +0.5 C from the station mean2019: 4.3 C, -0.8 C from the station mean2020: 6.1 C, +1.0 C from the station mean2021: 5.6 C, +0.5 C from the station mean2022: 5.0 C, -0.1 C from the station mean2023: 4.5 C, -0.6 C from the station mean2024: 6.0 C, +0.9 C from the station mean2025: 6.0 C, +0.9 C from the station mean20042006200820102012201420162018202020222024
One stripe for each of 22 complete years at Widtsoe #3, 2004 to 2025. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 2011, at 4.0 C (39.3 F), and the warmest was 2020, at 6.1 C (42.9 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Widtsoe #3 as warming stripes, 2004 to 2025
YearAnnual mean temperatureDifference from the station mean
20044.4 C-0.74 C
20054.8 C-0.34 C
20064.7 C-0.36 C
20075.3 C+0.22 C
20084.4 C-0.67 C
20094.6 C-0.45 C
20104.4 C-0.74 C
20114.0 C-1.05 C
20125.6 C+0.54 C
20134.4 C-0.73 C
20145.4 C+0.31 C
20155.4 C+0.31 C
20165.5 C+0.37 C
20176.0 C+0.94 C
20185.6 C+0.49 C
20194.3 C-0.80 C
20206.1 C+0.96 C
20215.6 C+0.50 C
20225.0 C-0.08 C
20234.5 C-0.57 C
20246.0 C+0.89 C
20256.0 C+0.94 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1978 to 2026
Yearly extremes at Widtsoe #3: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)30.9 C (87.6 F)202128.6 C (83.5 F)24
Coldest night (TNn)-27.7 C (-17.9 F)2011-20.6 C (-5.2 F)24
Wettest day (Rx1day)81.3 mm (3.2 in)199338.1 mm (1.5 in)49
Wettest five days (Rx5day)157.5 mm (6.2 in)201368.6 mm (2.7 in)49
Longest dry spell (CDD)52 days197925 days49

Hottest day (TXx)

Hottest day (TXx) at Widtsoe #3 by year The hottest day of the year at Widtsoe #3, 1978 to 2026. The record is 30.9 C (87.6 F) in 2021, marked on the chart; the median year is 28.6 C (83.5 F). 2628303219801990200020102020Record: 30.9 C (87.6 F) in 2021
The hottest day of the year at Widtsoe #3, 1978 to 2026. The record is 30.9 C (87.6 F) in 2021, marked on the chart; the median year is 28.6 C (83.5 F).
Hottest day (TXx) at Widtsoe #3 by year
YearHottest day (TXx)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
200326.8 C (80.2 F)
200427.7 C (81.9 F)
200529.1 C (84.4 F)
200629.1 C (84.4 F)
200730.4 C (86.7 F)
200827.3 C (81.1 F)
200930.0 C (86.0 F)
201028.4 C (83.1 F)
201127.3 C (81.1 F)
201226.9 C (80.4 F)
201329.2 C (84.6 F)
201427.0 C (80.6 F)
201527.7 C (81.9 F)
201628.7 C (83.7 F)
201729.2 C (84.6 F)
201828.1 C (82.6 F)
201927.4 C (81.3 F)
202030.7 C (87.3 F)
202130.9 C (87.6 F)
202228.5 C (83.3 F)
202330.4 C (86.7 F)
202429.6 C (85.3 F)
202527.6 C (81.7 F)
202629.4 C (84.9 F)

Coldest night (TNn)

Coldest night (TNn) at Widtsoe #3 by year The coldest night of the year at Widtsoe #3, 1978 to 2026. The record is -27.7 C (-17.9 F) in 2011, marked on the chart; the median year is -20.6 C (-5.2 F). -30-25-20-1519801990200020102020Record: -27.7 C (-17.9 F) in 2011
The coldest night of the year at Widtsoe #3, 1978 to 2026. The record is -27.7 C (-17.9 F) in 2011, marked on the chart; the median year is -20.6 C (-5.2 F).
Coldest night (TNn) at Widtsoe #3 by year
YearColdest night (TNn)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003-19.3 C (-2.7 F)
2004-20.7 C (-5.3 F)
2005-18.6 C (-1.5 F)
2006-20.6 C (-5.1 F)
2007-23.7 C (-10.7 F)
2008-24.3 C (-11.7 F)
2009-18.9 C (-2.0 F)
2010-22.5 C (-8.5 F)
2011-27.7 C (-17.9 F)
2012-19.2 C (-2.6 F)
2013-25.5 C (-13.9 F)
2014-21.4 C (-6.5 F)
2015-19.3 C (-2.7 F)
2016-21.6 C (-6.9 F)
2017-19.7 C (-3.5 F)
2018-21.4 C (-6.5 F)
2019-22.4 C (-8.3 F)
2020-22.2 C (-8.0 F)
2021-18.1 C (-0.6 F)
2022-20.8 C (-5.4 F)
2023-20.3 C (-4.5 F)
2024-18.5 C (-1.3 F)
2025-19.2 C (-2.6 F)
2026-17.2 C (1.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Widtsoe #3 by year The wettest day of the year at Widtsoe #3, 1978 to 2026. The record is 81.3 mm (3.2 in) in 1993, marked on the chart; the median year is 38.1 mm (1.5 in). 2040608010019801990200020102020Record: 81.3 mm (3.2 in) in 1993
The wettest day of the year at Widtsoe #3, 1978 to 2026. The record is 81.3 mm (3.2 in) in 1993, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Widtsoe #3 by year
YearWettest day (Rx1day)
197845.7 mm (1.8 in)
197933.0 mm (1.3 in)
198027.9 mm (1.1 in)
198143.2 mm (1.7 in)
198235.6 mm (1.4 in)
198345.7 mm (1.8 in)
198430.5 mm (1.2 in)
198533.0 mm (1.3 in)
198625.4 mm (1.0 in)
198735.6 mm (1.4 in)
198838.1 mm (1.5 in)
198933.0 mm (1.3 in)
199033.0 mm (1.3 in)
199135.6 mm (1.4 in)
199230.5 mm (1.2 in)
199381.3 mm (3.2 in)
199433.0 mm (1.3 in)
199561.0 mm (2.4 in)
199648.3 mm (1.9 in)
199750.8 mm (2.0 in)
199840.6 mm (1.6 in)
199940.6 mm (1.6 in)
200055.9 mm (2.2 in)
200138.1 mm (1.5 in)
200233.0 mm (1.3 in)
200322.9 mm (0.9 in)
200461.0 mm (2.4 in)
200535.6 mm (1.4 in)
200633.0 mm (1.3 in)
200727.9 mm (1.1 in)
200822.9 mm (0.9 in)
200933.0 mm (1.3 in)
201078.7 mm (3.1 in)
201155.9 mm (2.2 in)
201243.2 mm (1.7 in)
201368.6 mm (2.7 in)
201440.6 mm (1.6 in)
201543.2 mm (1.7 in)
201666.0 mm (2.6 in)
201738.1 mm (1.5 in)
201835.6 mm (1.4 in)
201961.0 mm (2.4 in)
202038.1 mm (1.5 in)
202150.8 mm (2.0 in)
202250.8 mm (2.0 in)
202333.0 mm (1.3 in)
202478.7 mm (3.1 in)
202538.1 mm (1.5 in)
202676.2 mm (3.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Widtsoe #3 by year The wettest five days of the year at Widtsoe #3, 1978 to 2026. The record is 157.5 mm (6.2 in) in 2013, marked on the chart; the median year is 68.6 mm (2.7 in). 05010015020019801990200020102020Record: 157.5 mm (6.2 in) in 2013
The wettest five days of the year at Widtsoe #3, 1978 to 2026. The record is 157.5 mm (6.2 in) in 2013, marked on the chart; the median year is 68.6 mm (2.7 in).
Wettest five days (Rx5day) at Widtsoe #3 by year
YearWettest five days (Rx5day)
197878.8 mm (3.1 in)
197976.2 mm (3.0 in)
198068.6 mm (2.7 in)
198166.1 mm (2.6 in)
198276.2 mm (3.0 in)
1983119.3 mm (4.7 in)
198463.5 mm (2.5 in)
198568.6 mm (2.7 in)
198671.1 mm (2.8 in)
198773.6 mm (2.9 in)
198850.8 mm (2.0 in)
198938.1 mm (1.5 in)
199068.5 mm (2.7 in)
199171.2 mm (2.8 in)
199266.1 mm (2.6 in)
1993147.3 mm (5.8 in)
199455.9 mm (2.2 in)
199581.3 mm (3.2 in)
199666.0 mm (2.6 in)
199778.8 mm (3.1 in)
199868.5 mm (2.7 in)
199963.5 mm (2.5 in)
200096.5 mm (3.8 in)
200171.1 mm (2.8 in)
200238.1 mm (1.5 in)
200335.5 mm (1.4 in)
2004106.6 mm (4.2 in)
200588.9 mm (3.5 in)
200663.5 mm (2.5 in)
200745.7 mm (1.8 in)
200840.7 mm (1.6 in)
200943.1 mm (1.7 in)
2010142.2 mm (5.6 in)
201173.6 mm (2.9 in)
201266.1 mm (2.6 in)
2013157.5 mm (6.2 in)
201463.4 mm (2.5 in)
201571.1 mm (2.8 in)
201688.8 mm (3.5 in)
201753.4 mm (2.1 in)
201860.8 mm (2.4 in)
2019109.3 mm (4.3 in)
202043.2 mm (1.7 in)
202161.0 mm (2.4 in)
202296.5 mm (3.8 in)
202363.4 mm (2.5 in)
2024101.5 mm (4.0 in)
202581.2 mm (3.2 in)
2026104.2 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Widtsoe #3 by year The longest dry spell of the year at Widtsoe #3, 1978 to 2026. The record is 52 days in 1979, marked on the chart; the median year is 25 days. 10203040506019801990200020102020Record: 52 days in 1979
The longest dry spell of the year at Widtsoe #3, 1978 to 2026. The record is 52 days in 1979, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Widtsoe #3 by year
YearLongest dry spell (CDD)
197819 days
197952 days
198031 days
198130 days
198240 days
198345 days
198421 days
198521 days
198626 days
198733 days
198823 days
198934 days
199025 days
199120 days
199225 days
199314 days
199422 days
199521 days
199613 days
199725 days
199813 days
199935 days
200023 days
200122 days
200224 days
200327 days
200425 days
200520 days
200636 days
200720 days
200830 days
200916 days
201022 days
201120 days
201236 days
201329 days
201441 days
201528 days
201622 days
201749 days
201831 days
201929 days
202044 days
202130 days
202247 days
202344 days
202423 days
202528 days
202623 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Widtsoe #3 falls on 10 June and the median first autumn frost on 25 September, which leaves a median of 109 days between them.

Frost dates and growing season at Widtsoe #3
MeasureMedian, all yearsEarliest periodRecent period (2004 to 2025)Recent against earliestFitted trend
Last spring frost10 Junen/a10 Junen/an/a
First autumn frost25 Septembern/a25 Septembern/an/a
Growing days109 daysn/a109 daysn/an/a

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

47 years, 1979 to 2025

A day with at least 39.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 100.9 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Widtsoe #3: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.3 mm (1.5 in)
5 years51.9 mm (2.0 in)
10 years61.7 mm (2.4 in)
25 years75.8 mm (3.0 in)
50 years87.7 mm (3.5 in)Longer than the 47 years of record
100 years100.9 mm (4.0 in)Longer than the 47 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, 47 years of values from 1979 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: 81.3 mm (3.2 in) in 1993; 78.7 mm (3.1 in) in 2010; 78.7 mm (3.1 in) in 2024.

Download the Data

  • Data for Widtsoe #3 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Widtsoe #3 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 (2026-10-17).