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Built 2026-10-14 (14 October 2026)

Whitewater Weather Records (USC00248939)

Record envelope, standing records and threshold days for Whitewater (USC00248939), Montana, United States, with 76 years of record.

Key Facts for Whitewater

  • Whitewater (USC00248939) is a weather station in Montana, United States at 48.76 latitude and -107.63 longitude, 709 m (2,325 ft) above sea level.
  • The station reports from 1951 to 2026, 76 years of record.
  • 0 records set at Whitewater still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Whitewater set a daily record precipitation of 17.8 mm (0.7 in) on 3 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Montana, United States, 48.76 latitude, -107.63 longitude.
  • Elevation: 709 m (2,325 ft).
  • Period of record: 1951 to 2026, 76 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Whitewater, with 2026 drawn through them The band shows the record high and record low for each calendar day at Whitewater. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Whitewater. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Whitewater, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Whitewater by the year they were set 0 records at Whitewater still stand. 00000000000
0 records at Whitewater still stand.
Standing records at Whitewater by the year they were set
Year setStanding records

All-Time Record Progression

3 new records
When Whitewater set new all-time records 3 all-time records were set at Whitewater between 28 May 1982 and 9 November 2020. Each dot is a new record. Record daily precipitationRecord daily snowfall28 May 1982: Record daily precipitation 90.7 mm (3.6 in)6 January 1989: Record daily snowfall 27.9 cm (11.0 in)9 November 2020: Record daily snowfall 30.0 cm (11.8 in)19851990199520002005201020152020
3 all-time records were set at Whitewater between 28 May 1982 and 9 November 2020. Each dot is a new record.
When Whitewater set new all-time records
DateKindDetail
1982-05-28Record daily precipitationRecord daily precipitation 90.7 mm (3.6 in)
1989-01-06Record daily snowfallRecord daily snowfall 27.9 cm (11.0 in)
2020-11-09Record daily snowfallRecord daily snowfall 30.0 cm (11.8 in)

Wettest Day of Each Month

May: 90.7 mm (3.6 in)
Record daily precipitation for each month at Whitewater The wettest day on record for each calendar month at Whitewater. The most was 90.7 mm (3.6 in) on 28 May 1982. 0255075100 Jan: 31.2 mm (1.2 in), 6 January 1989 Jan Feb: 23.9 mm (0.9 in), 11 February 1979 Feb Mar: 26.9 mm (1.1 in), 11 March 1954 Mar Apr: 31.5 mm (1.2 in), 15 April 2009 Apr May: 90.7 mm (3.6 in), 28 May 1982 May Jun: 89.7 mm (3.5 in), 29 June 1991 Jun Jul: 46.5 mm (1.8 in), 12 July 1976 Jul Aug: 75.2 mm (3.0 in), 24 August 2014 Aug Sep: 59.7 mm (2.4 in), 25 September 1986 Sep Oct: 54.4 mm (2.1 in), 3 October 2016 Oct Nov: 22.9 mm (0.9 in), 2 November 1992 Nov Dec: 25.9 mm (1.0 in), 27 December 2003 Dec
The wettest day on record for each calendar month at Whitewater. The most was 90.7 mm (3.6 in) on 28 May 1982.
Record daily precipitation for each month at Whitewater
MonthRecord daily precipitation (mm)Date
Jan31.2 mm (1.2 in)6 January 1989
Feb23.9 mm (0.9 in)11 February 1979
Mar26.9 mm (1.1 in)11 March 1954
Apr31.5 mm (1.2 in)15 April 2009
May90.7 mm (3.6 in)28 May 1982
Jun89.7 mm (3.5 in)29 June 1991
Jul46.5 mm (1.8 in)12 July 1976
Aug75.2 mm (3.0 in)24 August 2014
Sep59.7 mm (2.4 in)25 September 1986
Oct54.4 mm (2.1 in)3 October 2016
Nov22.9 mm (0.9 in)2 November 1992
Dec25.9 mm (1.0 in)27 December 2003

Latest Records

20
Latest records at Whitewater
DateStationRecordValueBeat old record byOld record stoodSignificance
3 September 2026Whitewater, USdaily rain (Provisional)17.8 mm (0.7 in)7.6 mm (0.30 in)27 years20 of 100 (Routine)
25 April 2026Whitewater, USdaily snowfall1.0 cm (0.4 in)1.0 cm (0.4 in)73 years20 of 100 (Routine)
17 April 2026Whitewater, USdaily snow depth2.5 cm (1.0 in)2.5 cm (1.0 in)73 years20 of 100 (Routine)
17 April 2026Whitewater, USdaily snowfall3.6 cm (1.4 in)2.8 cm (1.1 in)4 years16 of 100 (Routine)
12 December 2025Whitewater, USdaily rain11.4 mm (0.4 in)8.9 mm (0.35 in)15 years20 of 100 (Routine)
12 December 2025Whitewater, USdaily snowfall5.1 cm (2.0 in)2.6 cm (1.0 in)67 years34 of 100 (Routine)
11 December 2025Whitewater, USdaily snowfall8.9 cm (3.5 in)3.8 cm (1.5 in)67 years37 of 100 (Notable)
11 December 2025Whitewater, USdaily rain8.9 mm (0.35 in)2.3 mm (0.09 in)30 years20 of 100 (Routine)
2 December 2025Whitewater, USdaily snowfall3.6 cm (1.4 in)1.1 cm (0.4 in)60 years20 of 100 (Routine)
28 November 2025Whitewater, USdaily snowfall7.1 cm (2.8 in)2.0 cm (0.8 in)50 years26 of 100 (Routine)
24 November 2025Whitewater, USdaily rain9.4 mm (0.37 in)0.3 mm (0.01 in)67 years20 of 100 (Routine)
24 November 2025Whitewater, USdaily snowfall (Tie)10.2 cm (4.0 in)tie67 years6 of 100 (Routine)
9 August 2025Whitewater, USdaily rain18.5 mm (0.7 in)7.3 mm (0.29 in)4 years15 of 100 (Routine)
7 August 2025Whitewater, USdaily rain9.9 mm (0.39 in)0.5 mm (0.02 in)50 years20 of 100 (Routine)
6 February 2025Whitewater, USdaily rain4.6 mm (0.18 in)0.8 mm (0.03 in)37 years20 of 100 (Routine)
5 February 2025Whitewater, USdaily rain3.6 mm (0.14 in)0.3 mm (0.01 in)73 years20 of 100 (Routine)
5 February 2025Whitewater, USdaily snowfall (Tie)5.1 cm (2.0 in)tie46 years5 of 100 (Routine)
9 December 2024Whitewater, USdaily snowfall (Tie)5.1 cm (2.0 in)tie24 years3 of 100 (Routine)
23 November 2024Whitewater, USdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)63 years30 of 100 (Routine)
18 September 2024Whitewater, USdaily rain15.5 mm (0.6 in)0.8 mm (0.03 in)39 years19 of 100 (Routine)

Extremes by Year

1951 to 2026
Yearly extremes at Whitewater: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)90.7 mm (3.6 in)198231.1 mm (1.2 in)76
Wettest five days (Rx5day)153.2 mm (6.0 in)199148.2 mm (1.9 in)75
Longest dry spell (CDD)89 days198147 days76

Wettest day (Rx1day)

Wettest day (Rx1day) at Whitewater by year The wettest day of the year at Whitewater, 1951 to 2026. The record is 90.7 mm (3.6 in) in 1982, marked on the chart; the median year is 31.1 mm (1.2 in). 0204060801001960198020002020Record: 90.7 mm (3.6 in) in 1982
The wettest day of the year at Whitewater, 1951 to 2026. The record is 90.7 mm (3.6 in) in 1982, marked on the chart; the median year is 31.1 mm (1.2 in).
Wettest day (Rx1day) at Whitewater by year
YearWettest day (Rx1day)
195125.4 mm (1.0 in)
195230.2 mm (1.2 in)
195349.8 mm (2.0 in)
195446.2 mm (1.8 in)
195529.5 mm (1.2 in)
195614.7 mm (0.6 in)
195726.7 mm (1.1 in)
195823.4 mm (0.9 in)
195931.2 mm (1.2 in)
196018.3 mm (0.7 in)
196145.2 mm (1.8 in)
196230.2 mm (1.2 in)
196334.3 mm (1.4 in)
196437.1 mm (1.5 in)
196538.4 mm (1.5 in)
196630.2 mm (1.2 in)
196725.4 mm (1.0 in)
196840.9 mm (1.6 in)
196933.0 mm (1.3 in)
197046.0 mm (1.8 in)
197123.4 mm (0.9 in)
197222.1 mm (0.9 in)
197329.7 mm (1.2 in)
197451.8 mm (2.0 in)
197540.4 mm (1.6 in)
197647.0 mm (1.9 in)
197728.2 mm (1.1 in)
197845.5 mm (1.8 in)
197933.8 mm (1.3 in)
198033.0 mm (1.3 in)
198131.8 mm (1.3 in)
198290.7 mm (3.6 in)
198344.5 mm (1.8 in)
198415.0 mm (0.6 in)
198535.8 mm (1.4 in)
198659.7 mm (2.4 in)
198730.5 mm (1.2 in)
198843.2 mm (1.7 in)
198931.2 mm (1.2 in)
199029.0 mm (1.1 in)
199189.7 mm (3.5 in)
199228.2 mm (1.1 in)
199350.5 mm (2.0 in)
199426.2 mm (1.0 in)
199549.5 mm (1.9 in)
199622.9 mm (0.9 in)
199750.3 mm (2.0 in)
199838.4 mm (1.5 in)
199930.7 mm (1.2 in)
200031.8 mm (1.3 in)
200130.5 mm (1.2 in)
200225.4 mm (1.0 in)
200325.9 mm (1.0 in)
200428.7 mm (1.1 in)
200531.5 mm (1.2 in)
200625.7 mm (1.0 in)
200722.1 mm (0.9 in)
200832.5 mm (1.3 in)
200931.5 mm (1.2 in)
201046.0 mm (1.8 in)
201131.2 mm (1.2 in)
201224.1 mm (0.9 in)
201335.1 mm (1.4 in)
201475.2 mm (3.0 in)
201528.4 mm (1.1 in)
201654.4 mm (2.1 in)
201716.5 mm (0.6 in)
201830.2 mm (1.2 in)
201936.1 mm (1.4 in)
202020.3 mm (0.8 in)
202127.2 mm (1.1 in)
202231.0 mm (1.2 in)
202322.4 mm (0.9 in)
202427.2 mm (1.1 in)
202518.5 mm (0.7 in)
202617.8 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Whitewater by year The wettest five days of the year at Whitewater, 1951 to 2026. The record is 153.2 mm (6.0 in) in 1991, marked on the chart; the median year is 48.2 mm (1.9 in). 0501001502001960198020002020Record: 153.2 mm (6.0 in) in 1991
The wettest five days of the year at Whitewater, 1951 to 2026. The record is 153.2 mm (6.0 in) in 1991, marked on the chart; the median year is 48.2 mm (1.9 in).
Wettest five days (Rx5day) at Whitewater by year
YearWettest five days (Rx5day)
195133.5 mm (1.3 in)
195251.3 mm (2.0 in)
195364.8 mm (2.6 in)
195477.5 mm (3.1 in)
195531.0 mm (1.2 in)
195620.1 mm (0.8 in)
195738.1 mm (1.5 in)
195823.4 mm (0.9 in)
195957.4 mm (2.3 in)
196019.1 mm (0.8 in)
196158.9 mm (2.3 in)
196234.0 mm (1.3 in)
196355.1 mm (2.2 in)
196451.0 mm (2.0 in)
196538.4 mm (1.5 in)
196654.3 mm (2.1 in)
196759.4 mm (2.3 in)
196850.0 mm (2.0 in)
196948.2 mm (1.9 in)
197096.1 mm (3.8 in)
197128.5 mm (1.1 in)
197235.9 mm (1.4 in)
197357.9 mm (2.3 in)
197462.5 mm (2.5 in)
197567.3 mm (2.6 in)
197651.6 mm (2.0 in)
197741.6 mm (1.6 in)
197845.5 mm (1.8 in)
197952.6 mm (2.1 in)
198035.0 mm (1.4 in)
198148.8 mm (1.9 in)
1982103.9 mm (4.1 in)
198378.0 mm (3.1 in)
198422.6 mm (0.9 in)
198549.3 mm (1.9 in)
198673.1 mm (2.9 in)
198753.9 mm (2.1 in)
198843.2 mm (1.7 in)
198951.0 mm (2.0 in)
199056.7 mm (2.2 in)
1991153.2 mm (6.0 in)
199238.5 mm (1.5 in)
1993101.0 mm (4.0 in)
199445.8 mm (1.8 in)
199554.9 mm (2.2 in)
199641.4 mm (1.6 in)
199784.8 mm (3.3 in)
199846.0 mm (1.8 in)
199942.9 mm (1.7 in)
200054.1 mm (2.1 in)
200157.5 mm (2.3 in)
200253.6 mm (2.1 in)
200346.7 mm (1.8 in)
200454.8 mm (2.2 in)
200553.8 mm (2.1 in)
200643.2 mm (1.7 in)
200744.4 mm (1.7 in)
200851.1 mm (2.0 in)
200932.3 mm (1.3 in)
201062.8 mm (2.5 in)
2011n/a
201210.7 mm (0.4 in)
201340.4 mm (1.6 in)
2014112.0 mm (4.4 in)
201547.4 mm (1.9 in)
2016108.3 mm (4.3 in)
201716.5 mm (0.6 in)
201837.1 mm (1.5 in)
201948.1 mm (1.9 in)
202026.9 mm (1.1 in)
202136.0 mm (1.4 in)
202236.1 mm (1.4 in)
202325.4 mm (1.0 in)
202438.4 mm (1.5 in)
202541.1 mm (1.6 in)
202633.7 mm (1.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Whitewater by year The longest dry spell of the year at Whitewater, 1951 to 2026. The record is 89 days in 1981, marked on the chart; the median year is 47 days. 02550751001960198020002020Record: 89 days in 1981
The longest dry spell of the year at Whitewater, 1951 to 2026. The record is 89 days in 1981, marked on the chart; the median year is 47 days.
Longest dry spell (CDD) at Whitewater by year
YearLongest dry spell (CDD)
195130 days
195238 days
195328 days
195462 days
195554 days
195664 days
195759 days
195835 days
195957 days
196059 days
196138 days
196242 days
196344 days
196485 days
196555 days
196639 days
196762 days
196858 days
196982 days
197058 days
197157 days
197259 days
197348 days
197483 days
197567 days
197682 days
197761 days
197846 days
197972 days
198039 days
198189 days
198254 days
198352 days
198454 days
198541 days
198631 days
198779 days
198880 days
198930 days
199040 days
199139 days
199262 days
199351 days
199487 days
199557 days
199649 days
199728 days
199828 days
199932 days
200028 days
200136 days
200251 days
200334 days
200428 days
200559 days
200629 days
200779 days
200838 days
200937 days
201027 days
20113 days
201226 days
201344 days
201434 days
201540 days
201662 days
201732 days
201829 days
201925 days
202048 days
202184 days
202261 days
202333 days
202431 days
202534 days
202627 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.

Rainfall Return Levels

68 years, 1952 to 2025

A day with at least 32.1 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 90.1 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Whitewater: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years32.1 mm (1.3 in)
5 years43.7 mm (1.7 in)
10 years52.8 mm (2.1 in)
25 years66.1 mm (2.6 in)
50 years77.4 mm (3.0 in)
100 years90.1 mm (3.5 in)Longer than the 68 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, 68 years of values from 1952 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: 90.7 mm (3.6 in) in 1982; 89.7 mm (3.5 in) in 1991; 75.2 mm (3.0 in) in 2014.

Download the Data

  • Data for Whitewater standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Whitewater 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

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