Ft Peck Pwr Plt Weather Records (USC00243176)
Record envelope, standing records and threshold days for Ft Peck Pwr Plt (USC00243176), Montana, United States, with 71 years of record.
Key Facts for Ft Peck Pwr Plt
- Ft Peck Pwr Plt (USC00243176) is a weather station in Montana, United States at 48.01 latitude and -106.41 longitude, 631 m (2,071 ft) above sea level.
- The station reports from 1956 to 2026, 71 years of record.
- 1,464 records set at Ft Peck Pwr Plt still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Ft Peck Pwr Plt set a daily record precipitation of 19.1 mm (0.8 in) on 13 August 2026.
About the Station
- Location: Montana, United States, 48.01 latitude, -106.41 longitude.
- Elevation: 631 m (2,071 ft).
- Period of record: 1956 to 2026, 71 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
13 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.0 C (59.0 F) | -41.1 C (-42.0 F) | 8.3 C (46.9 F) | -29.4 C (-20.9 F) |
| Feb | 20.6 C (69.1 F) | -40.0 C (-40.0 F) | 13.3 C (55.9 F) | -21.1 C (-6.0 F) |
| Mar | 26.1 C (79.0 F) | -33.3 C (-27.9 F) | 23.9 C (75.0 F) | -17.2 C (1.0 F) |
| Apr | 32.8 C (91.0 F) | -18.3 C (-0.9 F) | 25.6 C (78.1 F) | -7.8 C (18.0 F) |
| May | 37.8 C (100.0 F) | -12.8 C (9.0 F) | 32.8 C (91.0 F) | -3.3 C (26.1 F) |
| Jun | 41.7 C (107.1 F) | -2.2 C (28.0 F) | 30.0 C (86.0 F) | 6.7 C (44.1 F) |
| Jul | 42.2 C (108.0 F) | 3.9 C (39.0 F) | 42.2 C (108.0 F) | 13.9 C (57.0 F) |
| Aug | 43.3 C (109.9 F) | 0.6 C (33.1 F) | 38.3 C (100.9 F) | 8.3 C (46.9 F) |
| Sep | 39.4 C (102.9 F) | -9.4 C (15.1 F) | 22.2 C (72.0 F) | 3.9 C (39.0 F) |
| Oct | 32.8 C (91.0 F) | -20.0 C (-4.0 F) | 22.2 C (72.0 F) | 3.3 C (37.9 F) |
| Nov | 25.6 C (78.1 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -38.9 C (-38.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1956 | 6 |
| 1957 | 15 |
| 1958 | 22 |
| 1959 | 30 |
| 1960 | 21 |
| 1961 | 12 |
| 1962 | 26 |
| 1963 | 20 |
| 1964 | 19 |
| 1965 | 40 |
| 1966 | 18 |
| 1967 | 26 |
| 1968 | 21 |
| 1969 | 31 |
| 1970 | 12 |
| 1971 | 13 |
| 1972 | 36 |
| 1973 | 18 |
| 1974 | 19 |
| 1975 | 15 |
| 1976 | 15 |
| 1977 | 18 |
| 1978 | 9 |
| 1979 | 9 |
| 1980 | 29 |
| 1981 | 19 |
| 1982 | 26 |
| 1983 | 28 |
| 1984 | 19 |
| 1985 | 43 |
| 1986 | 13 |
| 1987 | 31 |
| 1988 | 34 |
| 1989 | 17 |
| 1990 | 27 |
| 1991 | 30 |
| 1992 | 38 |
| 1993 | 17 |
| 1994 | 5 |
| 1995 | 21 |
| 1996 | 31 |
| 1997 | 12 |
| 1998 | 22 |
| 1999 | 22 |
| 2000 | 20 |
| 2001 | 16 |
| 2002 | 28 |
| 2003 | 26 |
| 2004 | 20 |
| 2005 | 30 |
| 2006 | 12 |
| 2007 | 19 |
| 2008 | 15 |
| 2009 | 28 |
| 2010 | 7 |
| 2011 | 15 |
| 2012 | 21 |
| 2013 | 8 |
| 2014 | 12 |
| 2015 | 19 |
| 2016 | 16 |
| 2017 | 11 |
| 2018 | 18 |
| 2019 | 22 |
| 2020 | 22 |
| 2021 | 41 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 15 |
| 2025 | 19 |
| 2026 | 19 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1987-07-29 | Record high minimum temperature | Record high minimum temperature 25.0 C (77.0 F) |
| 1995-08-08 | Record high maximum temperature | Record high maximum temperature 43.3 C (109.9 F) |
| 2003-08-13 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 2017-12-20 | Record daily snowfall | Record daily snowfall 8.9 cm (3.5 in) |
| 2018-03-04 | Record daily snowfall | Record daily snowfall 15.2 cm (6.0 in) |
| 2024-01-13 | Record low maximum temperature | Record low maximum temperature -30.0 C (-22.0 F) |
| 2025-12-11 | Record daily snowfall | Record daily snowfall 18.5 cm (7.3 in) |
Wettest Day of Each Month
Jun: 101.3 mm (4.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 13.7 mm (0.5 in) | 22 January 2011 |
| Feb | 24.9 mm (1.0 in) | 8 February 1966 |
| Mar | 28.7 mm (1.1 in) | 22 March 1987 |
| Apr | 50.3 mm (2.0 in) | 26 April 1969 |
| May | 73.2 mm (2.9 in) | 10 May 2016 |
| Jun | 101.3 mm (4.0 in) | 18 June 1964 |
| Jul | 67.1 mm (2.6 in) | 14 July 1981 |
| Aug | 68.6 mm (2.7 in) | 22 August 1993 |
| Sep | 52.3 mm (2.1 in) | 12 September 1978 |
| Oct | 44.7 mm (1.8 in) | 12 October 1981 |
| Nov | 12.2 mm (0.5 in) | 23 November 1993 |
| Dec | 21.6 mm (0.9 in) | 11 December 2025 |
Period of Record Coverage
1956 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1956 | 25 | 7% | No |
| 1957 | 362 | 99% | Yes |
| 1958 | 354 | 97% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 360 | 99% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 362 | 99% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 363 | 99% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 362 | 99% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 353 | 97% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 360 | 98% | Yes |
| 1985 | 327 | 90% | No |
| 1986 | 364 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 359 | 98% | Yes |
| 1989 | 357 | 98% | Yes |
| 1990 | 359 | 98% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 364 | 100% | Yes |
| 1994 | 360 | 99% | Yes |
| 1995 | 361 | 99% | Yes |
| 1996 | 323 | 88% | No |
| 1997 | 345 | 95% | Yes |
| 1998 | 352 | 96% | Yes |
| 1999 | 345 | 95% | Yes |
| 2000 | 340 | 93% | Yes |
| 2001 | 249 | 68% | No |
| 2002 | 293 | 80% | No |
| 2003 | 318 | 87% | No |
| 2004 | 275 | 75% | No |
| 2005 | 341 | 93% | Yes |
| 2006 | 358 | 98% | Yes |
| 2007 | 355 | 97% | Yes |
| 2008 | 347 | 95% | Yes |
| 2009 | 337 | 92% | Yes |
| 2010 | 346 | 95% | Yes |
| 2011 | 327 | 90% | No |
| 2012 | 347 | 95% | Yes |
| 2013 | 349 | 96% | Yes |
| 2014 | 347 | 95% | Yes |
| 2015 | 337 | 92% | Yes |
| 2016 | 332 | 91% | Yes |
| 2017 | 296 | 81% | No |
| 2018 | 342 | 94% | Yes |
| 2019 | 329 | 90% | Yes |
| 2020 | 348 | 95% | Yes |
| 2021 | 360 | 99% | Yes |
| 2022 | 314 | 86% | No |
| 2023 | 348 | 95% | Yes |
| 2024 | 352 | 96% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 240 | 66% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 August 2026 | Ft Peck Pwr Plt, US | daily rain | 19.1 mm (0.8 in) | 2.8 mm (0.11 in) | 40 years | 20 of 100 (Routine) |
| 27 July 2026 | Ft Peck Pwr Plt, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 68 years | 6 of 100 (Routine) |
| 26 July 2026 | Ft Peck Pwr Plt, US | daily high max (Tie) | 37.2 C (99.0 F) | tie | 37 years | 4 of 100 (Routine) |
| 26 July 2026 | Ft Peck Pwr Plt, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 24 years | 3 of 100 (Routine) |
| 25 July 2026 | Ft Peck Pwr Plt, US | daily high max (Tie) | 39.4 C (102.9 F) | tie | 67 years | 6 of 100 (Routine) |
| 18 July 2026 | Ft Peck Pwr Plt, US | daily high min (Tie) | 21.1 C (70.0 F) | tie | 49 years | 5 of 100 (Routine) |
| 13 July 2026 | Ft Peck Pwr Plt, US | daily high min | 23.3 C (73.9 F) | 0.5 C (0.9 F) | 20 years | 14 of 100 (Routine) |
| 12 July 2026 | Ft Peck Pwr Plt, US | monthly high max (Tie) | 42.2 C (108.0 F) | tie | 23 years | 6 of 100 (Routine) |
| 1 June 2026 | Ft Peck Pwr Plt, US | daily low max | 12.8 C (55.0 F) | 2.8 C (5.0 F) | 25 years | 19 of 100 (Routine) |
| 30 May 2026 | Ft Peck Pwr Plt, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 68 years | 6 of 100 (Routine) |
| 29 May 2026 | Ft Peck Pwr Plt, US | monthly high min | 18.9 C (66.0 F) | 0.6 C (1.1 F) | 0 years | 18 of 100 (Routine) |
| 28 May 2026 | Ft Peck Pwr Plt, US | monthly high min | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 34 years | 28 of 100 (Routine) |
| 27 May 2026 | Ft Peck Pwr Plt, US | daily high min | 17.2 C (63.0 F) | 1.1 C (2.0 F) | 28 years | 17 of 100 (Routine) |
| 26 May 2026 | Ft Peck Pwr Plt, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 12 years | 12 of 100 (Routine) |
| 25 May 2026 | Ft Peck Pwr Plt, US | daily high max | 32.8 C (91.0 F) | 2.2 C (4.0 F) | 8 years | 12 of 100 (Routine) |
| 6 May 2026 | Ft Peck Pwr Plt, US | daily low min | -3.3 C (26.1 F) | 1.1 C (2.0 F) | 53 years | 25 of 100 (Routine) |
| 27 April 2026 | Ft Peck Pwr Plt, US | daily low min | -6.1 C (21.0 F) | 0.5 C (0.9 F) | 65 years | 27 of 100 (Routine) |
| 24 April 2026 | Ft Peck Pwr Plt, US | daily snowfall | 1.3 cm (0.5 in) | 1.3 cm (0.5 in) | 68 years | 20 of 100 (Routine) |
| 23 April 2026 | Ft Peck Pwr Plt, US | daily rain | 35.6 mm (1.4 in) | 24.9 mm (1.0 in) | 47 years | 61 of 100 (Major) |
| 23 April 2026 | Ft Peck Pwr Plt, US | daily snow depth | 7.6 cm (3.0 in) | 7.6 cm (3.0 in) | 68 years | 20 of 100 (Routine) |
Climate Trend
63 complete years, 1957 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1957 | 6.8 C | -0.73 C |
| 1958 | 7.3 C | -0.28 C |
| 1959 | 5.8 C | -1.74 C |
| 1960 | 6.8 C | -0.78 C |
| 1961 | 8.2 C | +0.68 C |
| 1962 | 7.2 C | -0.33 C |
| 1963 | 7.9 C | +0.30 C |
| 1964 | 7.1 C | -0.44 C |
| 1965 | 5.2 C | -2.37 C |
| 1966 | 6.1 C | -1.45 C |
| 1967 | 6.7 C | -0.83 C |
| 1968 | 7.0 C | -0.58 C |
| 1969 | 5.7 C | -1.83 C |
| 1970 | 6.1 C | -1.46 C |
| 1971 | 6.4 C | -1.19 C |
| 1972 | 5.5 C | -2.02 C |
| 1973 | 7.8 C | +0.19 C |
| 1974 | 7.8 C | +0.28 C |
| 1975 | 6.5 C | -1.06 C |
| 1976 | 8.3 C | +0.71 C |
| 1977 | 7.3 C | -0.26 C |
| 1978 | 5.4 C | -2.13 C |
| 1979 | 5.6 C | -1.98 C |
| 1980 | 7.4 C | -0.15 C |
| 1981 | 9.2 C | +1.67 C |
| 1982 | 5.1 C | -2.42 C |
| 1983 | 7.5 C | -0.02 C |
| 1984 | 7.6 C | +0.00 C |
| 1986 | 8.2 C | +0.64 C |
| 1987 | 9.7 C | +2.11 C |
| 1988 | 8.4 C | +0.80 C |
| 1989 | 6.5 C | -1.06 C |
| 1990 | 8.9 C | +1.32 C |
| 1991 | 8.4 C | +0.81 C |
| 1992 | 8.6 C | +1.02 C |
| 1993 | 6.1 C | -1.42 C |
| 1994 | 7.7 C | +0.12 C |
| 1995 | 7.4 C | -0.14 C |
| 1997 | 8.0 C | +0.48 C |
| 1998 | 9.3 C | +1.78 C |
| 1999 | 9.1 C | +1.53 C |
| 2000 | 7.8 C | +0.21 C |
| 2003 | 8.4 C | +0.81 C |
| 2005 | 8.5 C | +0.91 C |
| 2006 | 9.3 C | +1.73 C |
| 2007 | 9.1 C | +1.53 C |
| 2008 | 7.4 C | -0.18 C |
| 2009 | 6.5 C | -1.09 C |
| 2010 | 6.2 C | -1.38 C |
| 2011 | 7.1 C | -0.51 C |
| 2012 | 9.3 C | +1.70 C |
| 2013 | 7.4 C | -0.13 C |
| 2014 | 7.4 C | -0.14 C |
| 2015 | 9.3 C | +1.71 C |
| 2016 | 9.3 C | +1.73 C |
| 2017 | 8.4 C | +0.85 C |
| 2018 | 6.9 C | -0.70 C |
| 2020 | 8.0 C | +0.46 C |
| 2021 | 9.0 C | +1.42 C |
| 2022 | 8.0 C | +0.41 C |
| 2023 | 8.2 C | +0.63 C |
| 2024 | 9.0 C | +1.43 C |
| 2025 | 8.2 C | +0.60 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1957 to 2025. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 63 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.3 to 0.7) per decade | 1957 to 2025 | 63 | Rise |
| Mean daily maximum | 0.4 C (0.2 to 0.5) per decade | 0.6 F (0.4 to 0.9) per decade | 1957 to 2025 | 63 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.1 to 0.6) per decade | 1957 to 2025 | 63 | Rise |
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
1956 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1995 | 38.3 C (100.9 F) | 71 |
| Coldest night (TNn) | -41.1 C (-42.0 F) | 1969 | -32.2 C (-26.0 F) | 71 |
| Wettest day (Rx1day) | 101.3 mm (4.0 in) | 1964 | 34.3 mm (1.4 in) | 71 |
| Wettest five days (Rx5day) | 127.0 mm (5.0 in) | 2010 | 53.0 mm (2.1 in) | 71 |
| Longest dry spell (CDD) | 100 days | 1965 | 41 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1956 | 11.1 C (52.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 40.0 C (104.0 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 38.9 C (102.0 F) |
| 1964 | 38.3 C (100.9 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 38.3 C (100.9 F) |
| 1969 | 39.4 C (102.9 F) |
| 1970 | 38.9 C (102.0 F) |
| 1971 | 40.0 C (104.0 F) |
| 1972 | 35.6 C (96.1 F) |
| 1973 | 38.9 C (102.0 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 39.4 C (102.9 F) |
| 1976 | 37.2 C (99.0 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 38.3 C (100.9 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 38.9 C (102.0 F) |
| 1985 | 40.6 C (105.1 F) |
| 1986 | 37.2 C (99.0 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 41.7 C (107.1 F) |
| 1989 | 38.3 C (100.9 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 38.9 C (102.0 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 37.2 C (99.0 F) |
| 1995 | 43.3 C (109.9 F) |
| 1996 | 38.3 C (100.9 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 38.3 C (100.9 F) |
| 2000 | 39.4 C (102.9 F) |
| 2001 | 37.8 C (100.0 F) |
| 2002 | 42.2 C (108.0 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 42.2 C (108.0 F) |
| 2008 | 39.4 C (102.9 F) |
| 2009 | 37.8 C (100.0 F) |
| 2010 | 39.4 C (102.9 F) |
| 2011 | 40.6 C (105.1 F) |
| 2012 | 39.4 C (102.9 F) |
| 2013 | 37.2 C (99.0 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 39.4 C (102.9 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 38.3 C (100.9 F) |
| 2018 | 40.6 C (105.1 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 36.7 C (98.1 F) |
| 2021 | 40.6 C (105.1 F) |
| 2022 | 38.9 C (102.0 F) |
| 2023 | 38.3 C (100.9 F) |
| 2024 | 40.0 C (104.0 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 42.2 C (108.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1956 | -32.8 C (-27.0 F) |
| 1957 | -35.0 C (-31.0 F) |
| 1958 | -32.8 C (-27.0 F) |
| 1959 | -34.4 C (-29.9 F) |
| 1960 | -32.8 C (-27.0 F) |
| 1961 | -28.9 C (-20.0 F) |
| 1962 | -38.9 C (-38.0 F) |
| 1963 | -34.4 C (-29.9 F) |
| 1964 | -32.2 C (-26.0 F) |
| 1965 | -30.6 C (-23.1 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -35.0 C (-31.0 F) |
| 1968 | -35.6 C (-32.1 F) |
| 1969 | -41.1 C (-42.0 F) |
| 1970 | -36.1 C (-33.0 F) |
| 1971 | -36.1 C (-33.0 F) |
| 1972 | -37.2 C (-35.0 F) |
| 1973 | -30.0 C (-22.0 F) |
| 1974 | -37.2 C (-35.0 F) |
| 1975 | -28.9 C (-20.0 F) |
| 1976 | -33.9 C (-29.0 F) |
| 1977 | -36.7 C (-34.1 F) |
| 1978 | -30.0 C (-22.0 F) |
| 1979 | -32.8 C (-27.0 F) |
| 1980 | -31.7 C (-25.1 F) |
| 1981 | -27.8 C (-18.0 F) |
| 1982 | -36.7 C (-34.1 F) |
| 1983 | -37.8 C (-36.0 F) |
| 1984 | -28.9 C (-20.0 F) |
| 1985 | -32.2 C (-26.0 F) |
| 1986 | -32.2 C (-26.0 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -31.1 C (-24.0 F) |
| 1989 | -36.1 C (-33.0 F) |
| 1990 | -38.9 C (-38.0 F) |
| 1991 | -30.6 C (-23.1 F) |
| 1992 | -32.2 C (-26.0 F) |
| 1993 | -31.7 C (-25.1 F) |
| 1994 | -33.9 C (-29.0 F) |
| 1995 | -26.1 C (-15.0 F) |
| 1996 | -38.9 C (-38.0 F) |
| 1997 | -33.3 C (-27.9 F) |
| 1998 | -35.6 C (-32.1 F) |
| 1999 | -24.4 C (-11.9 F) |
| 2000 | -30.0 C (-22.0 F) |
| 2001 | -23.3 C (-9.9 F) |
| 2002 | -30.6 C (-23.1 F) |
| 2003 | -31.1 C (-24.0 F) |
| 2004 | -30.0 C (-22.0 F) |
| 2005 | -36.7 C (-34.1 F) |
| 2006 | -27.2 C (-17.0 F) |
| 2007 | -27.8 C (-18.0 F) |
| 2008 | -31.7 C (-25.1 F) |
| 2009 | -33.3 C (-27.9 F) |
| 2010 | -32.2 C (-26.0 F) |
| 2011 | -40.0 C (-40.0 F) |
| 2012 | -27.8 C (-18.0 F) |
| 2013 | -37.2 C (-35.0 F) |
| 2014 | -29.4 C (-20.9 F) |
| 2015 | -27.8 C (-18.0 F) |
| 2016 | -33.3 C (-27.9 F) |
| 2017 | -29.4 C (-20.9 F) |
| 2018 | -29.4 C (-20.9 F) |
| 2019 | -37.2 C (-35.0 F) |
| 2020 | -28.9 C (-20.0 F) |
| 2021 | -33.3 C (-27.9 F) |
| 2022 | -35.6 C (-32.1 F) |
| 2023 | -25.0 C (-13.0 F) |
| 2024 | -37.2 C (-35.0 F) |
| 2025 | -35.0 C (-31.0 F) |
| 2026 | -29.4 C (-20.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1956 | 0.5 mm (0.02 in) |
| 1957 | 16.8 mm (0.7 in) |
| 1958 | 11.4 mm (0.4 in) |
| 1959 | 26.4 mm (1.0 in) |
| 1960 | 32.5 mm (1.3 in) |
| 1961 | 31.5 mm (1.2 in) |
| 1962 | 52.1 mm (2.1 in) |
| 1963 | 53.1 mm (2.1 in) |
| 1964 | 101.3 mm (4.0 in) |
| 1965 | 71.9 mm (2.8 in) |
| 1966 | 55.4 mm (2.2 in) |
| 1967 | 24.9 mm (1.0 in) |
| 1968 | 34.3 mm (1.4 in) |
| 1969 | 50.3 mm (2.0 in) |
| 1970 | 40.6 mm (1.6 in) |
| 1971 | 38.9 mm (1.5 in) |
| 1972 | 42.2 mm (1.7 in) |
| 1973 | 45.5 mm (1.8 in) |
| 1974 | 85.3 mm (3.4 in) |
| 1975 | 27.7 mm (1.1 in) |
| 1976 | 49.8 mm (2.0 in) |
| 1977 | 47.5 mm (1.9 in) |
| 1978 | 52.3 mm (2.1 in) |
| 1979 | 11.2 mm (0.4 in) |
| 1980 | 31.0 mm (1.2 in) |
| 1981 | 67.1 mm (2.6 in) |
| 1982 | 44.7 mm (1.8 in) |
| 1983 | 45.7 mm (1.8 in) |
| 1984 | 15.7 mm (0.6 in) |
| 1985 | 37.3 mm (1.5 in) |
| 1986 | 35.8 mm (1.4 in) |
| 1987 | 41.9 mm (1.6 in) |
| 1988 | 21.8 mm (0.9 in) |
| 1989 | 16.5 mm (0.6 in) |
| 1990 | 13.2 mm (0.5 in) |
| 1991 | 24.4 mm (1.0 in) |
| 1992 | 30.2 mm (1.2 in) |
| 1993 | 68.6 mm (2.7 in) |
| 1994 | 25.7 mm (1.0 in) |
| 1995 | 21.6 mm (0.9 in) |
| 1996 | 29.7 mm (1.2 in) |
| 1997 | 53.8 mm (2.1 in) |
| 1998 | 29.5 mm (1.2 in) |
| 1999 | 31.5 mm (1.2 in) |
| 2000 | 33.0 mm (1.3 in) |
| 2001 | 49.8 mm (2.0 in) |
| 2002 | 59.4 mm (2.3 in) |
| 2003 | 21.6 mm (0.9 in) |
| 2004 | 26.2 mm (1.0 in) |
| 2005 | 66.0 mm (2.6 in) |
| 2006 | 25.7 mm (1.0 in) |
| 2007 | 52.3 mm (2.1 in) |
| 2008 | 48.3 mm (1.9 in) |
| 2009 | 33.0 mm (1.3 in) |
| 2010 | 63.8 mm (2.5 in) |
| 2011 | 50.0 mm (2.0 in) |
| 2012 | 24.1 mm (0.9 in) |
| 2013 | 47.0 mm (1.9 in) |
| 2014 | 61.7 mm (2.4 in) |
| 2015 | 32.3 mm (1.3 in) |
| 2016 | 73.2 mm (2.9 in) |
| 2017 | 16.5 mm (0.6 in) |
| 2018 | 33.5 mm (1.3 in) |
| 2019 | 38.1 mm (1.5 in) |
| 2020 | 25.9 mm (1.0 in) |
| 2021 | 15.2 mm (0.6 in) |
| 2022 | 47.2 mm (1.9 in) |
| 2023 | 25.4 mm (1.0 in) |
| 2024 | 27.9 mm (1.1 in) |
| 2025 | 29.2 mm (1.1 in) |
| 2026 | 35.6 mm (1.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1956 | 0.5 mm (0.02 in) |
| 1957 | 22.8 mm (0.9 in) |
| 1958 | 18.4 mm (0.7 in) |
| 1959 | 37.3 mm (1.5 in) |
| 1960 | 38.6 mm (1.5 in) |
| 1961 | 37.2 mm (1.5 in) |
| 1962 | 63.3 mm (2.5 in) |
| 1963 | 73.2 mm (2.9 in) |
| 1964 | 106.7 mm (4.2 in) |
| 1965 | 94.3 mm (3.7 in) |
| 1966 | 92.5 mm (3.6 in) |
| 1967 | 65.8 mm (2.6 in) |
| 1968 | 74.9 mm (2.9 in) |
| 1969 | 65.5 mm (2.6 in) |
| 1970 | 53.0 mm (2.1 in) |
| 1971 | 44.3 mm (1.7 in) |
| 1972 | 53.1 mm (2.1 in) |
| 1973 | 53.6 mm (2.1 in) |
| 1974 | 85.3 mm (3.4 in) |
| 1975 | 39.8 mm (1.6 in) |
| 1976 | 84.3 mm (3.3 in) |
| 1977 | 48.8 mm (1.9 in) |
| 1978 | 100.6 mm (4.0 in) |
| 1979 | 21.9 mm (0.9 in) |
| 1980 | 31.8 mm (1.3 in) |
| 1981 | 67.1 mm (2.6 in) |
| 1982 | 57.1 mm (2.2 in) |
| 1983 | 55.8 mm (2.2 in) |
| 1984 | 30.9 mm (1.2 in) |
| 1985 | 40.9 mm (1.6 in) |
| 1986 | 66.0 mm (2.6 in) |
| 1987 | 70.3 mm (2.8 in) |
| 1988 | 33.1 mm (1.3 in) |
| 1989 | 34.6 mm (1.4 in) |
| 1990 | 20.8 mm (0.8 in) |
| 1991 | 53.1 mm (2.1 in) |
| 1992 | 31.0 mm (1.2 in) |
| 1993 | 86.0 mm (3.4 in) |
| 1994 | 32.3 mm (1.3 in) |
| 1995 | 43.4 mm (1.7 in) |
| 1996 | 53.0 mm (2.1 in) |
| 1997 | 87.4 mm (3.4 in) |
| 1998 | 49.3 mm (1.9 in) |
| 1999 | 41.4 mm (1.6 in) |
| 2000 | 62.5 mm (2.5 in) |
| 2001 | 63.6 mm (2.5 in) |
| 2002 | 59.4 mm (2.3 in) |
| 2003 | 51.1 mm (2.0 in) |
| 2004 | 40.4 mm (1.6 in) |
| 2005 | 102.8 mm (4.0 in) |
| 2006 | 30.9 mm (1.2 in) |
| 2007 | 59.2 mm (2.3 in) |
| 2008 | 48.8 mm (1.9 in) |
| 2009 | 38.3 mm (1.5 in) |
| 2010 | 127.0 mm (5.0 in) |
| 2011 | 82.0 mm (3.2 in) |
| 2012 | 39.1 mm (1.5 in) |
| 2013 | 96.1 mm (3.8 in) |
| 2014 | 108.7 mm (4.3 in) |
| 2015 | 35.3 mm (1.4 in) |
| 2016 | 91.5 mm (3.6 in) |
| 2017 | 31.0 mm (1.2 in) |
| 2018 | 38.6 mm (1.5 in) |
| 2019 | 92.8 mm (3.7 in) |
| 2020 | 37.7 mm (1.5 in) |
| 2021 | 31.7 mm (1.2 in) |
| 2022 | 64.2 mm (2.5 in) |
| 2023 | 54.6 mm (2.1 in) |
| 2024 | 52.9 mm (2.1 in) |
| 2025 | 32.5 mm (1.3 in) |
| 2026 | 38.6 mm (1.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1956 | 31 days |
| 1957 | 44 days |
| 1958 | 34 days |
| 1959 | 40 days |
| 1960 | 52 days |
| 1961 | 53 days |
| 1962 | 41 days |
| 1963 | 85 days |
| 1964 | 60 days |
| 1965 | 100 days |
| 1966 | 38 days |
| 1967 | 52 days |
| 1968 | 32 days |
| 1969 | 55 days |
| 1970 | 51 days |
| 1971 | 41 days |
| 1972 | 32 days |
| 1973 | 45 days |
| 1974 | 34 days |
| 1975 | 43 days |
| 1976 | 64 days |
| 1977 | 48 days |
| 1978 | 38 days |
| 1979 | 39 days |
| 1980 | 53 days |
| 1981 | 60 days |
| 1982 | 30 days |
| 1983 | 43 days |
| 1984 | 38 days |
| 1985 | 80 days |
| 1986 | 37 days |
| 1987 | 44 days |
| 1988 | 44 days |
| 1989 | 37 days |
| 1990 | 55 days |
| 1991 | 57 days |
| 1992 | 41 days |
| 1993 | 37 days |
| 1994 | 26 days |
| 1995 | 45 days |
| 1996 | 45 days |
| 1997 | 39 days |
| 1998 | 45 days |
| 1999 | 31 days |
| 2000 | 42 days |
| 2001 | 34 days |
| 2002 | 46 days |
| 2003 | 31 days |
| 2004 | 34 days |
| 2005 | 36 days |
| 2006 | 31 days |
| 2007 | 86 days |
| 2008 | 41 days |
| 2009 | 58 days |
| 2010 | 74 days |
| 2011 | 22 days |
| 2012 | 38 days |
| 2013 | 27 days |
| 2014 | 29 days |
| 2015 | 35 days |
| 2016 | 39 days |
| 2017 | 43 days |
| 2018 | 29 days |
| 2019 | 33 days |
| 2020 | 42 days |
| 2021 | 45 days |
| 2022 | 57 days |
| 2023 | 51 days |
| 2024 | 41 days |
| 2025 | 34 days |
| 2026 | 47 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
63 years with a frostAcross 63 years with a frost, the median last spring frost at Ft Peck Pwr Plt falls on 8 May and the median first autumn frost on 30 September, which leaves a median of 149 days between them.
In 1991 to 2025 the median growing season was 150 days. That is 3 days more than in 1957 to 1987.
Fitted over all years, the growing season changes by +0.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1957 to 1987) | Recent period (1991 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 May | 6 May | 11 May | 5 days later | +0.6 days per decade |
| First autumn frost | 30 September | 28 September | 4 October | 6 days later | +0.8 days per decade |
| Growing days | 149 days | 147 days | 150 days | 3 days more | +0.2 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
66 years, 1957 to 2025A day with at least 36.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 96.8 mm (3.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 36.0 mm (1.4 in) | |
| 5 years | 52.5 mm (2.1 in) | |
| 10 years | 63.4 mm (2.5 in) | |
| 25 years | 76.9 mm (3.0 in) | |
| 50 years | 86.9 mm (3.4 in) | |
| 100 years | 96.8 mm (3.8 in) | Longer than the 66 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, 66 years of values from 1957 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: 101.3 mm (4.0 in) in 1964; 85.3 mm (3.4 in) in 1974; 73.2 mm (2.9 in) in 2016.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Ft Peck Pwr Plt had a mean temperature of 8.1 C (46.6 F) and 309.0 mm (12.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Oahe Dam (United States, 608 km away), Hopewell 1 SE (United States, 578 km away) and Kirley 7 N (United States, 542 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Oahe Dam | United States | 608 km (378 mi) | 8.1 C (46.6 F) | 355.5 mm (14.0 in) | 0.81 |
| Hopewell 1 SE | United States | 578 km (359 mi) | 8.0 C (46.4 F) | 405.7 mm (16.0 in) | 0.89 |
| Kirley 7 N | United States | 542 km (337 mi) | 8.1 C (46.5 F) | 455.6 mm (17.9 in) | 0.90 |
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
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 (2026-10-12).