Built 2026-10-15 (15 October 2026)

White River #1 Weather Records (USS0010K02S)

Record envelope, standing records and threshold days for White River #1 (USS0010K02S), Utah, United States, with 49 years of record.

Key Facts for White River #1

  • White River #1 (USS0010K02S) is a weather station in Utah, United States at 39.96 latitude and -110.99 longitude, 2,634 m (8,641 ft) above sea level.
  • The station reports from 1978 to 2026, 49 years of record.
  • 1,464 records set at White River #1 still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • White River #1 tied a daily record precipitation of 20.3 mm (0.8 in) on 16 September 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, 39.96 latitude, -110.99 longitude.
  • Elevation: 2,634 m (8,641 ft).
  • Period of record: 1978 to 2026, 49 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

25 days at or beyond a record
Daily record high and record low at White River #1, with 2026 drawn through them The band shows the record high and record low for each calendar day at White River #1. The lines show the 2026 daily maximum and minimum. 25 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 White River #1. The lines show the 2026 daily maximum and minimum. 25 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at White River #1, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.5 C (61.7 F)-28.3 C (-18.9 F)9.2 C (48.6 F)-16.1 C (3.0 F)
Feb15.6 C (60.1 F)-30.5 C (-22.9 F)11.1 C (52.0 F)-18.6 C (-1.5 F)
Mar21.5 C (70.7 F)-19.9 C (-3.8 F)21.5 C (70.7 F)-12.8 C (9.0 F)
Apr22.0 C (71.6 F)-16.8 C (1.8 F)16.9 C (62.4 F)-11.9 C (10.6 F)
May25.8 C (78.4 F)-11.5 C (11.3 F)24.6 C (76.3 F)-3.8 C (25.2 F)
Jun30.7 C (87.3 F)-5.5 C (22.1 F)26.6 C (79.9 F)-1.6 C (29.1 F)
Jul32.0 C (89.6 F)0.0 C (32.0 F)31.9 C (89.4 F)5.4 C (41.7 F)
Aug31.2 C (88.2 F)-2.1 C (28.2 F)30.8 C (87.4 F)5.8 C (42.4 F)
Sep31.0 C (87.8 F)-8.4 C (16.9 F)23.9 C (75.0 F)0.5 C (32.9 F)
Oct25.8 C (78.4 F)-22.3 C (-8.1 F)23.1 C (73.6 F)4.8 C (40.6 F)
Nov17.4 C (63.3 F)-22.2 C (-8.0 F)n/an/a
Dec13.9 C (57.0 F)-25.9 C (-14.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at White River #1 by the year they were set 1,464 records at White River #1 still stand. 2015 holds the most, with 95. 02550751002003: 402004: 632005: 452006: 532007: 622008: 702009: 502010: 562011: 482012: 542013: 662014: 572015: 952016: 602017: 692018: 462019: 492020: 822021: 742022: 832023: 572024: 472025: 772026: 6120032006200920122015201820212024
1,464 records at White River #1 still stand. 2015 holds the most, with 95.
Standing records at White River #1 by the year they were set
Year setStanding records
200340
200463
200545
200653
200762
200870
200950
201056
201148
201254
201366
201457
201595
201660
201769
201846
201949
202082
202174
202283
202357
202447
202577
202661

All-Time Record Progression

2 new records
When White River #1 set new all-time records 2 all-time records were set at White River #1 between 27 September 2014 and 22 September 2016. Each dot is a new record. Record daily precipitation27 September 2014: Record daily precipitation 53.3 mm (2.1 in)22 September 2016: Record daily precipitation 76.2 mm (3.0 in)2015
2 all-time records were set at White River #1 between 27 September 2014 and 22 September 2016. Each dot is a new record.
When White River #1 set new all-time records
DateKindDetail
2014-09-27Record daily precipitationRecord daily precipitation 53.3 mm (2.1 in)
2016-09-22Record daily precipitationRecord daily precipitation 76.2 mm (3.0 in)

Wettest Day of Each Month

Sep: 76.2 mm (3.0 in)
Record daily precipitation for each month at White River #1 The wettest day on record for each calendar month at White River #1. The most was 76.2 mm (3.0 in) on 22 September 2016. 020406080 Jan: 45.7 mm (1.8 in), 4 January 2017 Jan Feb: 40.6 mm (1.6 in), 20 February 1996 Feb Mar: 22.9 mm (0.9 in), 5 March 1990 Mar Apr: 33.0 mm (1.3 in), 7 April 2018 Apr May: 43.2 mm (1.7 in), 16 May 1983 May Jun: 35.6 mm (1.4 in), 6 June 1984 Jun Jul: 33.0 mm (1.3 in), 27 July 1982 Jul Aug: 50.8 mm (2.0 in), 22 August 2018 Aug Sep: 76.2 mm (3.0 in), 22 September 2016 Sep Oct: 35.6 mm (1.4 in), 18 October 2024 Oct Nov: 45.7 mm (1.8 in), 26 November 1989 Nov Dec: 43.2 mm (1.7 in), 26 December 1981 Dec
The wettest day on record for each calendar month at White River #1. The most was 76.2 mm (3.0 in) on 22 September 2016.
Record daily precipitation for each month at White River #1
MonthRecord daily precipitation (mm)Date
Jan45.7 mm (1.8 in)4 January 2017
Feb40.6 mm (1.6 in)20 February 1996
Mar22.9 mm (0.9 in)5 March 1990
Apr33.0 mm (1.3 in)7 April 2018
May43.2 mm (1.7 in)16 May 1983
Jun35.6 mm (1.4 in)6 June 1984
Jul33.0 mm (1.3 in)27 July 1982
Aug50.8 mm (2.0 in)22 August 2018
Sep76.2 mm (3.0 in)22 September 2016
Oct35.6 mm (1.4 in)18 October 2024
Nov45.7 mm (1.8 in)26 November 1989
Dec43.2 mm (1.7 in)26 December 1981

Period of Record Coverage

2003 to 2026
Days with data per year at White River #1 24 years of record at White River #1, 2003 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2003, 2026. 2003: 216 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 363 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 364 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 282 of 365 days20052010201520202025
24 years of record at White River #1, 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 White River #1
YearDays with dataShare of yearComplete
200321659%No
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
200936399%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
202036499%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628277%No

Latest Records

20
Latest records at White River #1
DateStationRecordValueBeat old record byOld record stoodSignificance
16 September 2026White River #1, USdaily rain (Tie, Provisional)20.3 mm (0.8 in)tie24 years2 of 100 (Routine)
29 August 2026White River #1, USdaily rain (Provisional)27.9 mm (1.1 in)7.6 mm (0.30 in)43 years26 of 100 (Routine)
27 August 2026White River #1, USdaily rain (Tie, Provisional)10.2 mm (0.4 in)tie43 years4 of 100 (Routine)
19 July 2026White River #1, USdaily rain10.2 mm (0.4 in)2.6 mm (0.10 in)36 years19 of 100 (Routine)
17 July 2026White River #1, USdaily rain15.2 mm (0.6 in)10.1 mm (0.4 in)44 years20 of 100 (Routine)
26 May 2026White River #1, USdaily rain (Tie)10.2 mm (0.4 in)tie17 years2 of 100 (Routine)
17 May 2026White River #1, USdaily rain (Tie)10.2 mm (0.4 in)tie39 years3 of 100 (Routine)
12 February 2026White River #1, USdaily rain (Tie)20.3 mm (0.8 in)tie40 years4 of 100 (Routine)
10 February 2026White River #1, USdaily rain (Tie)10.2 mm (0.4 in)tie26 years2 of 100 (Routine)
6 December 2025White River #1, USdaily rain15.2 mm (0.6 in)2.5 mm (0.10 in)22 years14 of 100 (Routine)
16 October 2025White River #1, USdaily rain12.7 mm (0.5 in)2.5 mm (0.10 in)31 years17 of 100 (Routine)
27 August 2025White River #1, USdaily rain (Tie)10.2 mm (0.4 in)tie42 years4 of 100 (Routine)
23 August 2025White River #1, USdaily rain40.6 mm (1.6 in)15.2 mm (0.6 in)12 years29 of 100 (Routine)
31 March 2025White River #1, USdaily rain20.3 mm (0.8 in)7.6 mm (0.30 in)40 years20 of 100 (Routine)
6 March 2025White River #1, USmonthly rain (Tie)22.9 mm (0.9 in)tie35 years6 of 100 (Routine)
2 January 2025White River #1, USdaily rain (Tie)12.7 mm (0.5 in)tie19 years2 of 100 (Routine)
28 December 2024White River #1, USdaily rain (Tie)12.7 mm (0.5 in)tie32 years3 of 100 (Routine)
18 October 2024White River #1, USmonthly rain35.6 mm (1.4 in)5.1 mm (0.20 in)14 years27 of 100 (Routine)
10 September 2024White River #1, USdaily rain (Tie)10.2 mm (0.4 in)tie33 years3 of 100 (Routine)
14 August 2024White River #1, USdaily rain (Tie)12.7 mm (0.5 in)tie44 years4 of 100 (Routine)

Climate Trend

22 complete years, 2004 to 2025
Annual mean temperature at White River #1 as warming stripes, 2004 to 2025 One stripe for each of 22 complete years at White River #1, 2004 to 2025. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 2011, at 3.9 C (38.9 F), and the warmest was 2025, at 5.9 C (42.6 F). The strongest colour marks a difference of 1.1 C (2.0 F). 2004: 4.6 C, -0.3 C from the station mean2005: 4.9 C, 0.0 C from the station mean2006: 4.6 C, -0.3 C from the station mean2007: 5.2 C, +0.3 C from the station mean2008: 3.9 C, -1.0 C from the station mean2009: 4.2 C, -0.7 C from the station mean2010: 4.3 C, -0.6 C from the station mean2011: 3.9 C, -1.0 C from the station mean2012: 5.7 C, +0.8 C from the station mean2013: 4.4 C, -0.5 C from the station mean2014: 5.2 C, +0.3 C from the station mean2015: 5.8 C, +0.9 C from the station mean2016: 5.5 C, +0.6 C from the station mean2017: 5.7 C, +0.8 C from the station mean2018: 5.5 C, +0.6 C from the station mean2019: 4.1 C, -0.8 C from the station mean2020: 5.3 C, +0.4 C from the station mean2021: 5.2 C, +0.3 C from the station mean2022: 4.5 C, -0.4 C from the station mean2023: 4.2 C, -0.7 C from the station mean2024: 5.3 C, +0.4 C from the station mean2025: 5.9 C, +1.0 C from the station mean20042006200820102012201420162018202020222024
One stripe for each of 22 complete years at White River #1, 2004 to 2025. Blue stripes are years cooler than the station's own mean of 4.9 C (40.8 F); red stripes are warmer. The coolest year was 2011, at 3.9 C (38.9 F), and the warmest was 2025, at 5.9 C (42.6 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at White River #1 as warming stripes, 2004 to 2025
YearAnnual mean temperatureDifference from the station mean
20044.6 C-0.28 C
20054.9 C-0.03 C
20064.6 C-0.33 C
20075.2 C+0.30 C
20083.9 C-1.03 C
20094.2 C-0.68 C
20104.3 C-0.57 C
20113.9 C-1.04 C
20125.7 C+0.79 C
20134.4 C-0.51 C
20145.2 C+0.31 C
20155.8 C+0.86 C
20165.5 C+0.59 C
20175.7 C+0.80 C
20185.5 C+0.60 C
20194.1 C-0.76 C
20205.3 C+0.45 C
20215.2 C+0.30 C
20224.5 C-0.37 C
20234.2 C-0.72 C
20245.3 C+0.40 C
20255.9 C+0.99 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 White River #1: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)32.0 C (89.6 F)200530.4 C (86.6 F)24
Coldest night (TNn)-30.5 C (-22.9 F)2011-22.5 C (-8.5 F)24
Wettest day (Rx1day)76.2 mm (3.0 in)201627.9 mm (1.1 in)49
Wettest five days (Rx5day)109.3 mm (4.3 in)201058.3 mm (2.3 in)49
Longest dry spell (CDD)76 days199926 days49

Hottest day (TXx)

Hottest day (TXx) at White River #1 by year The hottest day of the year at White River #1, 1978 to 2026. The record is 32.0 C (89.6 F) in 2005, marked on the chart; the median year is 30.4 C (86.6 F). 2628303219801990200020102020Record: 32.0 C (89.6 F) in 2005
The hottest day of the year at White River #1, 1978 to 2026. The record is 32.0 C (89.6 F) in 2005, marked on the chart; the median year is 30.4 C (86.6 F).
Hottest day (TXx) at White River #1 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
200330.7 C (87.3 F)
200429.2 C (84.6 F)
200532.0 C (89.6 F)
200630.2 C (86.4 F)
200729.8 C (85.6 F)
200828.8 C (83.8 F)
200930.8 C (87.4 F)
201028.7 C (83.7 F)
201127.7 C (81.9 F)
201229.8 C (85.6 F)
201330.9 C (87.6 F)
201430.9 C (87.6 F)
201530.7 C (87.3 F)
201630.6 C (87.1 F)
201729.0 C (84.2 F)
201830.8 C (87.4 F)
201929.4 C (84.9 F)
202031.2 C (88.2 F)
202130.5 C (86.9 F)
202231.0 C (87.8 F)
202329.9 C (85.8 F)
202430.0 C (86.0 F)
202530.1 C (86.2 F)
202631.9 C (89.4 F)

Coldest night (TNn)

Coldest night (TNn) at White River #1 by year The coldest night of the year at White River #1, 1978 to 2026. The record is -30.5 C (-22.9 F) in 2011, marked on the chart; the median year is -22.5 C (-8.5 F). -35-30-25-20-1519801990200020102020Record: -30.5 C (-22.9 F) in 2011
The coldest night of the year at White River #1, 1978 to 2026. The record is -30.5 C (-22.9 F) in 2011, marked on the chart; the median year is -22.5 C (-8.5 F).
Coldest night (TNn) at White River #1 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
2003-19.8 C (-3.6 F)
2004-22.9 C (-9.2 F)
2005-22.7 C (-8.9 F)
2006-21.5 C (-6.7 F)
2007-27.5 C (-17.5 F)
2008-24.0 C (-11.2 F)
2009-23.7 C (-10.7 F)
2010-22.3 C (-8.1 F)
2011-30.5 C (-22.9 F)
2012-21.8 C (-7.2 F)
2013-28.3 C (-18.9 F)
2014-23.1 C (-9.6 F)
2015-22.4 C (-8.3 F)
2016-21.6 C (-6.9 F)
2017-25.7 C (-14.3 F)
2018-21.6 C (-6.9 F)
2019-23.4 C (-10.1 F)
2020-22.6 C (-8.7 F)
2021-19.0 C (-2.2 F)
2022-20.5 C (-4.9 F)
2023-22.9 C (-9.2 F)
2024-17.3 C (0.9 F)
2025-21.2 C (-6.2 F)
2026-18.6 C (-1.5 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at White River #1 by year The wettest day of the year at White River #1, 1978 to 2026. The record is 76.2 mm (3.0 in) in 2016, marked on the chart; the median year is 27.9 mm (1.1 in). 02040608019801990200020102020Record: 76.2 mm (3.0 in) in 2016
The wettest day of the year at White River #1, 1978 to 2026. The record is 76.2 mm (3.0 in) in 2016, marked on the chart; the median year is 27.9 mm (1.1 in).
Wettest day (Rx1day) at White River #1 by year
YearWettest day (Rx1day)
197820.3 mm (0.8 in)
197925.4 mm (1.0 in)
198020.3 mm (0.8 in)
198143.2 mm (1.7 in)
198238.1 mm (1.5 in)
198343.2 mm (1.7 in)
198435.6 mm (1.4 in)
198533.0 mm (1.3 in)
198630.5 mm (1.2 in)
198725.4 mm (1.0 in)
198822.9 mm (0.9 in)
198945.7 mm (1.8 in)
199025.4 mm (1.0 in)
199122.9 mm (0.9 in)
199220.3 mm (0.8 in)
199322.9 mm (0.9 in)
199415.2 mm (0.6 in)
199522.9 mm (0.9 in)
199640.6 mm (1.6 in)
199735.6 mm (1.4 in)
199817.8 mm (0.7 in)
199922.9 mm (0.9 in)
200020.3 mm (0.8 in)
200130.5 mm (1.2 in)
200225.4 mm (1.0 in)
200315.2 mm (0.6 in)
200427.9 mm (1.1 in)
200525.4 mm (1.0 in)
200620.3 mm (0.8 in)
200717.8 mm (0.7 in)
200817.8 mm (0.7 in)
200938.1 mm (1.5 in)
201035.6 mm (1.4 in)
201127.9 mm (1.1 in)
201235.6 mm (1.4 in)
201325.4 mm (1.0 in)
201453.3 mm (2.1 in)
201522.9 mm (0.9 in)
201676.2 mm (3.0 in)
201745.7 mm (1.8 in)
201850.8 mm (2.0 in)
201938.1 mm (1.5 in)
202033.0 mm (1.3 in)
202140.6 mm (1.6 in)
202233.0 mm (1.3 in)
202335.6 mm (1.4 in)
202435.6 mm (1.4 in)
202540.6 mm (1.6 in)
202627.9 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at White River #1 by year The wettest five days of the year at White River #1, 1978 to 2026. The record is 109.3 mm (4.3 in) in 2010, marked on the chart; the median year is 58.3 mm (2.3 in). 2040608010012019801990200020102020Record: 109.3 mm (4.3 in) in 2010
The wettest five days of the year at White River #1, 1978 to 2026. The record is 109.3 mm (4.3 in) in 2010, marked on the chart; the median year is 58.3 mm (2.3 in).
Wettest five days (Rx5day) at White River #1 by year
YearWettest five days (Rx5day)
197843.2 mm (1.7 in)
197961.0 mm (2.4 in)
198068.6 mm (2.7 in)
198178.8 mm (3.1 in)
198276.2 mm (3.0 in)
198388.9 mm (3.5 in)
198455.9 mm (2.2 in)
198568.6 mm (2.7 in)
198676.1 mm (3.0 in)
198748.2 mm (1.9 in)
198840.6 mm (1.6 in)
198973.6 mm (2.9 in)
199058.4 mm (2.3 in)
199150.8 mm (2.0 in)
199250.7 mm (2.0 in)
199345.8 mm (1.8 in)
199438.0 mm (1.5 in)
199555.9 mm (2.2 in)
199658.3 mm (2.3 in)
199743.2 mm (1.7 in)
199845.6 mm (1.8 in)
199943.1 mm (1.7 in)
200053.4 mm (2.1 in)
200148.3 mm (1.9 in)
200240.7 mm (1.6 in)
200333.0 mm (1.3 in)
200481.2 mm (3.2 in)
200568.5 mm (2.7 in)
200648.2 mm (1.9 in)
200735.5 mm (1.4 in)
200840.6 mm (1.6 in)
200981.3 mm (3.2 in)
2010109.3 mm (4.3 in)
201158.4 mm (2.3 in)
201248.3 mm (1.9 in)
201350.8 mm (2.0 in)
201468.5 mm (2.7 in)
201555.9 mm (2.2 in)
201694.0 mm (3.7 in)
201781.3 mm (3.2 in)
201868.6 mm (2.7 in)
201953.3 mm (2.1 in)
202060.8 mm (2.4 in)
202171.2 mm (2.8 in)
202286.3 mm (3.4 in)
202371.1 mm (2.8 in)
202486.4 mm (3.4 in)
202568.5 mm (2.7 in)
202650.8 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at White River #1 by year The longest dry spell of the year at White River #1, 1978 to 2026. The record is 76 days in 1999, marked on the chart; the median year is 26 days. 02040608019801990200020102020Record: 76 days in 1999
The longest dry spell of the year at White River #1, 1978 to 2026. The record is 76 days in 1999, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at White River #1 by year
YearLongest dry spell (CDD)
197833 days
197930 days
198035 days
198123 days
198234 days
198321 days
198423 days
198534 days
198643 days
198719 days
198826 days
198934 days
199020 days
199122 days
199223 days
199331 days
199438 days
199515 days
199640 days
199740 days
199818 days
199976 days
200019 days
200149 days
200220 days
200328 days
200418 days
200523 days
200616 days
200736 days
200820 days
200913 days
201022 days
201118 days
201238 days
201319 days
201417 days
201526 days
201619 days
201726 days
201835 days
201928 days
202033 days
202131 days
202238 days
202318 days
202428 days
202538 days
202624 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 White River #1 falls on 13 June and the median first autumn frost on 17 September, which leaves a median of 93 days between them.

Frost dates and growing season at White River #1
MeasureMedian, all yearsEarliest periodRecent period (2004 to 2025)Recent against earliestFitted trend
Last spring frost13 Junen/a13 Junen/an/a
First autumn frost17 Septembern/a17 Septembern/an/a
Growing days93 daysn/a93 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

46 years, 1979 to 2025

A day with at least 29.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 69.3 mm (2.7 in) of rain is expected about once in 100 years.

Rainfall return levels at White River #1: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years29.1 mm (1.1 in)
5 years39.3 mm (1.5 in)
10 years46.3 mm (1.8 in)
25 years55.4 mm (2.2 in)
50 years62.3 mm (2.5 in)Longer than the 46 years of record
100 years69.3 mm (2.7 in)Longer than the 46 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, 46 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: 76.2 mm (3.0 in) in 2016; 53.3 mm (2.1 in) in 2014; 50.8 mm (2.0 in) in 2018.

Download the Data

  • Data for White River #1 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for White River #1 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).