Grand Forks Intl AP Weather Records (USW00014916)
Record envelope, standing records and threshold days for Grand Forks Intl AP (USW00014916), North Dakota, United States, with 86 years of record.
Key Facts for Grand Forks Intl AP
- Grand Forks Intl AP (USW00014916) is a weather station in North Dakota, United States at 47.94 latitude and -97.18 longitude, 255 m (838 ft) above sea level.
- The station reports from 1941 to 2026, 86 years of record.
- 1,464 records set at Grand Forks Intl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Grand Forks Intl AP tied a daily record precipitation of 25.4 mm (1.0 in) on 28 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: North Dakota, United States, 47.94 latitude, -97.18 longitude.
- Elevation: 255 m (838 ft).
- Period of record: 1941 to 2026, 86 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 11.1 C (52.0 F) | -41.7 C (-43.1 F) | 3.9 C (39.0 F) | -30.0 C (-22.0 F) |
| Feb | 19.4 C (66.9 F) | -40.0 C (-40.0 F) | 6.7 C (44.1 F) | -25.0 C (-13.0 F) |
| Mar | 26.7 C (80.1 F) | -38.9 C (-38.0 F) | 10.6 C (51.1 F) | -22.8 C (-9.0 F) |
| Apr | 37.8 C (100.0 F) | -22.2 C (-8.0 F) | 28.3 C (82.9 F) | -7.8 C (18.0 F) |
| May | 38.3 C (100.9 F) | -15.0 C (5.0 F) | 34.4 C (93.9 F) | -6.1 C (21.0 F) |
| Jun | 39.4 C (102.9 F) | -1.1 C (30.0 F) | 33.9 C (93.0 F) | 5.6 C (42.1 F) |
| Jul | 40.0 C (104.0 F) | -1.1 C (30.0 F) | 37.2 C (99.0 F) | 7.8 C (46.0 F) |
| Aug | 40.0 C (104.0 F) | -0.6 C (30.9 F) | 34.4 C (93.9 F) | 6.1 C (43.0 F) |
| Sep | 39.4 C (102.9 F) | -7.8 C (18.0 F) | 29.4 C (84.9 F) | 2.2 C (36.0 F) |
| Oct | 33.3 C (91.9 F) | -14.4 C (6.1 F) | 27.8 C (82.0 F) | 0.0 C (32.0 F) |
| Nov | 23.9 C (75.0 F) | -35.0 C (-31.0 F) | n/a | n/a |
| Dec | 13.3 C (55.9 F) | -36.0 C (-32.8 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1941 | 24 |
| 1942 | 26 |
| 1943 | 14 |
| 1944 | 15 |
| 1945 | 27 |
| 1946 | 20 |
| 1947 | 18 |
| 1948 | 24 |
| 1949 | 8 |
| 1950 | 35 |
| 1951 | 16 |
| 1952 | 19 |
| 1953 | 22 |
| 1954 | 9 |
| 1955 | 23 |
| 1956 | 24 |
| 1957 | 7 |
| 1958 | 13 |
| 1959 | 20 |
| 1960 | 5 |
| 1961 | 17 |
| 1962 | 17 |
| 1963 | 17 |
| 1964 | 18 |
| 1965 | 12 |
| 1966 | 20 |
| 1967 | 20 |
| 1968 | 14 |
| 1969 | 20 |
| 1970 | 19 |
| 1971 | 10 |
| 1972 | 25 |
| 1973 | 8 |
| 1974 | 24 |
| 1975 | 11 |
| 1976 | 22 |
| 1977 | 34 |
| 1978 | 15 |
| 1979 | 21 |
| 1980 | 11 |
| 1981 | 17 |
| 1982 | 12 |
| 1983 | 24 |
| 1984 | 17 |
| 1985 | 31 |
| 1986 | 16 |
| 1987 | 14 |
| 1988 | 25 |
| 1989 | 25 |
| 1990 | 21 |
| 1991 | 35 |
| 1992 | 24 |
| 1993 | 8 |
| 1994 | 15 |
| 1995 | 15 |
| 1996 | 20 |
| 1997 | 10 |
| 1998 | 8 |
| 1999 | 11 |
| 2000 | 21 |
| 2001 | 4 |
| 2002 | 27 |
| 2003 | 12 |
| 2004 | 18 |
| 2005 | 10 |
| 2006 | 11 |
| 2007 | 15 |
| 2008 | 12 |
| 2009 | 10 |
| 2010 | 12 |
| 2011 | 12 |
| 2012 | 20 |
| 2013 | 6 |
| 2014 | 14 |
| 2015 | 19 |
| 2016 | 17 |
| 2017 | 14 |
| 2018 | 12 |
| 2019 | 10 |
| 2020 | 14 |
| 2021 | 23 |
| 2022 | 13 |
| 2023 | 18 |
| 2024 | 18 |
| 2025 | 20 |
| 2026 | 10 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1983-08-07 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1989-01-08 | Record snow depth | Record snow depth 91.4 cm (36.0 in) |
| 1989-01-09 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1989-01-11 | Record snow depth | Record snow depth 99.1 cm (39.0 in) |
| 1995-07-16 | Record daily precipitation | Record daily precipitation 112.8 mm (4.4 in) |
| 1996-02-01 | Record low maximum temperature | Record low maximum temperature -32.8 C (-27.0 F) |
| 1996-02-01 | Record low minimum temperature | Record low minimum temperature -40.0 C (-40.0 F) |
| 2004-01-30 | Record low minimum temperature | Record low minimum temperature -41.7 C (-43.1 F) |
Wettest Day of Each Month
Jul: 112.8 mm (4.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 18.5 mm (0.7 in) | 11 January 1975 |
| Feb | 30.5 mm (1.2 in) | 20 February 1955 |
| Mar | 42.2 mm (1.7 in) | 4 March 1966 |
| Apr | 47.5 mm (1.9 in) | 12 April 1972 |
| May | 50.5 mm (2.0 in) | 22 May 2010 |
| Jun | 108.2 mm (4.3 in) | 9 June 2002 |
| Jul | 112.8 mm (4.4 in) | 16 July 1995 |
| Aug | 98.3 mm (3.9 in) | 30 August 1944 |
| Sep | 96.8 mm (3.8 in) | 20 September 2019 |
| Oct | 47.2 mm (1.9 in) | 17 October 1998 |
| Nov | 30.0 mm (1.2 in) | 1 November 2000 |
| Dec | 21.3 mm (0.8 in) | 13 December 1988 |
Period of Record Coverage
1941 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1941 | 275 | 75% | No |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 337 | 92% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 273 | 75% | No |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 28 September 2026 | Grand Forks Intl AP, US | daily rain (Tie, Provisional) | 25.4 mm (1.0 in) | tie | 12 years | 2 of 100 (Routine) |
| 25 September 2026 | Grand Forks Intl AP, US | daily high min (Provisional) | 15.6 C (60.1 F) | 1.7 C (3.1 F) | 40 years | 23 of 100 (Routine) |
| 7 September 2026 | Grand Forks Intl AP, US | daily high min (Provisional) | 18.9 C (66.0 F) | 1.1 C (2.0 F) | 84 years | 35 of 100 (Notable) |
| 3 September 2026 | Grand Forks Intl AP, US | daily rain (Provisional) | 28.4 mm (1.1 in) | 11.4 mm (0.4 in) | 36 years | 29 of 100 (Routine) |
| 29 July 2026 | Grand Forks Intl AP, US | daily high max | 37.2 C (99.0 F) | 2.2 C (4.0 F) | 51 years | 28 of 100 (Routine) |
| 27 July 2026 | Grand Forks Intl AP, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 43 years | 5 of 100 (Routine) |
| 14 July 2026 | Grand Forks Intl AP, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 43 years | 5 of 100 (Routine) |
| 13 July 2026 | Grand Forks Intl AP, US | daily high max | 35.6 C (96.1 F) | 0.6 C (1.1 F) | 43 years | 21 of 100 (Routine) |
| 13 July 2026 | Grand Forks Intl AP, US | daily high min | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 31 years | 20 of 100 (Routine) |
| 12 July 2026 | Grand Forks Intl AP, US | daily high max | 36.7 C (98.1 F) | 1.7 C (3.1 F) | 20 years | 18 of 100 (Routine) |
| 12 July 2026 | Grand Forks Intl AP, US | daily high min | 22.2 C (72.0 F) | 0.5 C (0.9 F) | 28 years | 17 of 100 (Routine) |
| 11 July 2026 | Grand Forks Intl AP, US | daily high max | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 72 years | 30 of 100 (Routine) |
| 7 June 2026 | Grand Forks Intl AP, US | daily high min | 19.4 C (66.9 F) | 0.5 C (0.9 F) | 3 years | 9 of 100 (Routine) |
| 3 June 2026 | Grand Forks Intl AP, US | daily rain (Tie) | 47.8 mm (1.9 in) | tie | 77 years | 7 of 100 (Routine) |
| 26 May 2026 | Grand Forks Intl AP, US | daily high max | 33.3 C (91.9 F) | 0.5 C (0.9 F) | 8 years | 10 of 100 (Routine) |
| 15 March 2026 | Grand Forks Intl AP, US | daily low max | -13.3 C (8.1 F) | 2.2 C (4.0 F) | 28 years | 19 of 100 (Routine) |
| 12 March 2026 | Grand Forks Intl AP, US | daily snowfall | 13.7 cm (5.4 in) | 3.0 cm (1.2 in) | 45 years | 27 of 100 (Routine) |
| 8 March 2026 | Grand Forks Intl AP, US | daily high min | 1.1 C (34.0 F) | 0.5 C (0.9 F) | 16 years | 12 of 100 (Routine) |
| 18 February 2026 | Grand Forks Intl AP, US | daily rain | 14.0 mm (0.6 in) | 10.7 mm (0.4 in) | 4 years | 20 of 100 (Routine) |
| 18 February 2026 | Grand Forks Intl AP, US | daily snowfall | 13.0 cm (5.1 in) | 4.1 cm (1.6 in) | 8 years | 23 of 100 (Routine) |
Climate Trend
82 complete years, 1942 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1942 | 4.1 C | -0.21 C |
| 1943 | 3.5 C | -0.84 C |
| 1944 | 4.8 C | +0.46 C |
| 1945 | 3.2 C | -1.08 C |
| 1946 | 3.8 C | -0.50 C |
| 1947 | 3.6 C | -0.72 C |
| 1948 | 3.4 C | -0.89 C |
| 1949 | 3.6 C | -0.71 C |
| 1950 | 1.3 C | -2.99 C |
| 1951 | 2.4 C | -1.88 C |
| 1952 | 4.8 C | +0.53 C |
| 1953 | 5.3 C | +0.97 C |
| 1954 | 4.5 C | +0.19 C |
| 1955 | 3.4 C | -0.87 C |
| 1956 | 3.1 C | -1.23 C |
| 1957 | 4.4 C | +0.09 C |
| 1958 | 4.7 C | +0.42 C |
| 1959 | 3.8 C | -0.49 C |
| 1960 | 3.8 C | -0.55 C |
| 1961 | 5.2 C | +0.88 C |
| 1962 | 3.8 C | -0.46 C |
| 1963 | 5.4 C | +1.10 C |
| 1964 | 4.6 C | +0.26 C |
| 1965 | 2.3 C | -2.02 C |
| 1966 | 2.4 C | -1.95 C |
| 1967 | 3.0 C | -1.27 C |
| 1968 | 3.3 C | -1.00 C |
| 1969 | 2.7 C | -1.57 C |
| 1970 | 3.2 C | -1.08 C |
| 1971 | 4.2 C | -0.13 C |
| 1972 | 2.3 C | -1.98 C |
| 1973 | 4.9 C | +0.59 C |
| 1974 | 2.9 C | -1.36 C |
| 1975 | 3.9 C | -0.43 C |
| 1976 | 4.6 C | +0.31 C |
| 1977 | 5.1 C | +0.84 C |
| 1978 | 3.4 C | -0.87 C |
| 1979 | 2.3 C | -2.02 C |
| 1980 | 5.0 C | +0.73 C |
| 1981 | 6.0 C | +1.73 C |
| 1982 | 3.6 C | -0.71 C |
| 1983 | 5.3 C | +1.04 C |
| 1984 | 5.0 C | +0.67 C |
| 1985 | 3.4 C | -0.90 C |
| 1986 | 4.8 C | +0.48 C |
| 1987 | 6.6 C | +2.30 C |
| 1988 | 5.0 C | +0.70 C |
| 1989 | 3.3 C | -0.99 C |
| 1990 | 5.5 C | +1.21 C |
| 1991 | 5.5 C | +1.21 C |
| 1992 | 4.9 C | +0.55 C |
| 1993 | 3.8 C | -0.52 C |
| 1994 | 4.8 C | +0.47 C |
| 1996 | 2.6 C | -1.66 C |
| 1998 | 5.8 C | +1.47 C |
| 1999 | 5.1 C | +0.77 C |
| 2000 | 4.5 C | +0.16 C |
| 2001 | 5.1 C | +0.84 C |
| 2002 | 4.5 C | +0.23 C |
| 2003 | 4.2 C | -0.10 C |
| 2004 | 3.7 C | -0.63 C |
| 2005 | 4.7 C | +0.40 C |
| 2006 | 5.8 C | +1.49 C |
| 2007 | 4.5 C | +0.20 C |
| 2008 | 3.1 C | -1.21 C |
| 2009 | 3.5 C | -0.82 C |
| 2010 | 5.3 C | +1.00 C |
| 2011 | 5.1 C | +0.75 C |
| 2012 | 6.5 C | +2.17 C |
| 2013 | 3.2 C | -1.14 C |
| 2014 | 3.4 C | -0.92 C |
| 2015 | 6.0 C | +1.65 C |
| 2016 | 6.9 C | +2.60 C |
| 2017 | 5.7 C | +1.37 C |
| 2018 | 3.9 C | -0.42 C |
| 2019 | 2.9 C | -1.45 C |
| 2020 | 4.8 C | +0.50 C |
| 2021 | 6.2 C | +1.86 C |
| 2022 | 3.5 C | -0.82 C |
| 2023 | 5.4 C | +1.13 C |
| 2024 | 7.4 C | +3.06 C |
| 2025 | 6.0 C | +1.70 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1942 to 2025. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1942 to 2025 | 82 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1942 to 2025 | 82 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.6) per decade | 1942 to 2025 | 82 | 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
1941 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1983 | 35.6 C (96.1 F) | 86 |
| Coldest night (TNn) | -41.7 C (-43.1 F) | 2004 | -34.4 C (-29.9 F) | 86 |
| Wettest day (Rx1day) | 112.8 mm (4.4 in) | 1995 | 47.2 mm (1.9 in) | 86 |
| Wettest five days (Rx5day) | 183.9 mm (7.2 in) | 2020 | 68.9 mm (2.7 in) | 86 |
| Longest dry spell (CDD) | 65 days | 1976 | 29 days | 86 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1941 | 39.4 C (102.9 F) |
| 1942 | 35.0 C (95.0 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 37.2 C (99.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 38.9 C (102.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 38.3 C (100.9 F) |
| 1950 | 34.4 C (93.9 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 37.8 C (100.0 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 36.1 C (97.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 39.4 C (102.9 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 33.3 C (91.9 F) |
| 1963 | 36.1 C (97.0 F) |
| 1964 | 38.3 C (100.9 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 32.8 C (91.0 F) |
| 1967 | 35.6 C (96.1 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 36.1 C (97.0 F) |
| 1970 | 37.8 C (100.0 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 38.3 C (100.9 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 40.0 C (104.0 F) |
| 1984 | 37.2 C (99.0 F) |
| 1985 | 37.2 C (99.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 40.0 C (104.0 F) |
| 1989 | 39.4 C (102.9 F) |
| 1990 | 35.0 C (95.0 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 33.9 C (93.0 F) |
| 1993 | 34.4 C (93.9 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 34.4 C (93.9 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 33.9 C (93.0 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 35.0 C (95.0 F) |
| 2004 | 33.3 C (91.9 F) |
| 2005 | 33.9 C (93.0 F) |
| 2006 | 36.7 C (98.1 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 36.1 C (97.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 35.6 C (96.1 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 36.1 C (97.0 F) |
| 2021 | 39.4 C (102.9 F) |
| 2022 | 37.8 C (100.0 F) |
| 2023 | 37.8 C (100.0 F) |
| 2024 | 35.0 C (95.0 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1941 | -23.9 C (-11.0 F) |
| 1942 | -33.3 C (-27.9 F) |
| 1943 | -35.6 C (-32.1 F) |
| 1944 | -31.1 C (-24.0 F) |
| 1945 | -34.4 C (-29.9 F) |
| 1946 | -35.0 C (-31.0 F) |
| 1947 | -31.7 C (-25.1 F) |
| 1948 | -38.9 C (-38.0 F) |
| 1949 | -33.3 C (-27.9 F) |
| 1950 | -36.1 C (-33.0 F) |
| 1951 | -37.8 C (-36.0 F) |
| 1952 | -35.6 C (-32.1 F) |
| 1953 | -30.0 C (-22.0 F) |
| 1954 | -35.6 C (-32.1 F) |
| 1955 | -34.4 C (-29.9 F) |
| 1956 | -35.0 C (-31.0 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -31.7 C (-25.1 F) |
| 1959 | -34.4 C (-29.9 F) |
| 1960 | -30.0 C (-22.0 F) |
| 1961 | -33.3 C (-27.9 F) |
| 1962 | -35.0 C (-31.0 F) |
| 1963 | -33.9 C (-29.0 F) |
| 1964 | -32.8 C (-27.0 F) |
| 1965 | -34.4 C (-29.9 F) |
| 1966 | -36.7 C (-34.1 F) |
| 1967 | -37.2 C (-35.0 F) |
| 1968 | -36.1 C (-33.0 F) |
| 1969 | -32.8 C (-27.0 F) |
| 1970 | -37.2 C (-35.0 F) |
| 1971 | -37.2 C (-35.0 F) |
| 1972 | -36.1 C (-33.0 F) |
| 1973 | -36.1 C (-33.0 F) |
| 1974 | -34.4 C (-29.9 F) |
| 1975 | -32.2 C (-26.0 F) |
| 1976 | -32.2 C (-26.0 F) |
| 1977 | -36.7 C (-34.1 F) |
| 1978 | -35.0 C (-31.0 F) |
| 1979 | -36.1 C (-33.0 F) |
| 1980 | -32.2 C (-26.0 F) |
| 1981 | -29.4 C (-20.9 F) |
| 1982 | -35.0 C (-31.0 F) |
| 1983 | -33.3 C (-27.9 F) |
| 1984 | -31.1 C (-24.0 F) |
| 1985 | -35.0 C (-31.0 F) |
| 1986 | -34.4 C (-29.9 F) |
| 1987 | -28.9 C (-20.0 F) |
| 1988 | -32.2 C (-26.0 F) |
| 1989 | -36.1 C (-33.0 F) |
| 1990 | -34.4 C (-29.9 F) |
| 1991 | -33.9 C (-29.0 F) |
| 1992 | -30.0 C (-22.0 F) |
| 1993 | -34.4 C (-29.9 F) |
| 1994 | -36.7 C (-34.1 F) |
| 1995 | -30.0 C (-22.0 F) |
| 1996 | -40.0 C (-40.0 F) |
| 1997 | -34.4 C (-29.9 F) |
| 1998 | -31.1 C (-24.0 F) |
| 1999 | -33.9 C (-29.0 F) |
| 2000 | -31.1 C (-24.0 F) |
| 2001 | -30.0 C (-22.0 F) |
| 2002 | -25.6 C (-14.1 F) |
| 2003 | -32.2 C (-26.0 F) |
| 2004 | -41.7 C (-43.1 F) |
| 2005 | -39.4 C (-38.9 F) |
| 2006 | -32.2 C (-26.0 F) |
| 2007 | -35.0 C (-31.0 F) |
| 2008 | -36.1 C (-33.0 F) |
| 2009 | -38.9 C (-38.0 F) |
| 2010 | -37.2 C (-35.0 F) |
| 2011 | -34.4 C (-29.9 F) |
| 2012 | -27.2 C (-17.0 F) |
| 2013 | -33.2 C (-27.8 F) |
| 2014 | -36.0 C (-32.8 F) |
| 2015 | -33.2 C (-27.8 F) |
| 2016 | -31.0 C (-23.8 F) |
| 2017 | -32.7 C (-26.9 F) |
| 2018 | -31.6 C (-24.9 F) |
| 2019 | -37.1 C (-34.8 F) |
| 2020 | -34.3 C (-29.7 F) |
| 2021 | -36.0 C (-32.8 F) |
| 2022 | -38.2 C (-36.8 F) |
| 2023 | -32.1 C (-25.8 F) |
| 2024 | -26.0 C (-14.8 F) |
| 2025 | -29.9 C (-21.8 F) |
| 2026 | -30.0 C (-22.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1941 | 58.9 mm (2.3 in) |
| 1942 | 35.6 mm (1.4 in) |
| 1943 | 42.2 mm (1.7 in) |
| 1944 | 98.3 mm (3.9 in) |
| 1945 | 41.9 mm (1.6 in) |
| 1946 | 79.8 mm (3.1 in) |
| 1947 | 59.9 mm (2.4 in) |
| 1948 | 65.0 mm (2.6 in) |
| 1949 | 36.6 mm (1.4 in) |
| 1950 | 58.7 mm (2.3 in) |
| 1951 | 97.8 mm (3.9 in) |
| 1952 | 46.5 mm (1.8 in) |
| 1953 | 32.8 mm (1.3 in) |
| 1954 | 53.3 mm (2.1 in) |
| 1955 | 47.2 mm (1.9 in) |
| 1956 | 31.2 mm (1.2 in) |
| 1957 | 67.8 mm (2.7 in) |
| 1958 | 32.3 mm (1.3 in) |
| 1959 | 43.7 mm (1.7 in) |
| 1960 | 64.8 mm (2.6 in) |
| 1961 | 31.2 mm (1.2 in) |
| 1962 | 46.0 mm (1.8 in) |
| 1963 | 17.8 mm (0.7 in) |
| 1964 | 61.2 mm (2.4 in) |
| 1965 | 42.9 mm (1.7 in) |
| 1966 | 65.3 mm (2.6 in) |
| 1967 | 32.0 mm (1.3 in) |
| 1968 | 47.2 mm (1.9 in) |
| 1969 | 45.2 mm (1.8 in) |
| 1970 | 73.4 mm (2.9 in) |
| 1971 | 32.8 mm (1.3 in) |
| 1972 | 47.5 mm (1.9 in) |
| 1973 | 47.8 mm (1.9 in) |
| 1974 | 43.4 mm (1.7 in) |
| 1975 | 27.9 mm (1.1 in) |
| 1976 | 34.0 mm (1.3 in) |
| 1977 | 29.7 mm (1.2 in) |
| 1978 | 59.7 mm (2.4 in) |
| 1979 | 50.8 mm (2.0 in) |
| 1980 | 28.7 mm (1.1 in) |
| 1981 | 65.5 mm (2.6 in) |
| 1982 | 42.9 mm (1.7 in) |
| 1983 | 32.8 mm (1.3 in) |
| 1984 | 58.2 mm (2.3 in) |
| 1985 | 48.0 mm (1.9 in) |
| 1986 | 33.5 mm (1.3 in) |
| 1987 | 62.2 mm (2.4 in) |
| 1988 | 49.8 mm (2.0 in) |
| 1989 | 21.8 mm (0.9 in) |
| 1990 | 30.7 mm (1.2 in) |
| 1991 | 41.4 mm (1.6 in) |
| 1992 | 38.1 mm (1.5 in) |
| 1993 | 84.1 mm (3.3 in) |
| 1994 | 65.8 mm (2.6 in) |
| 1995 | 112.8 mm (4.4 in) |
| 1996 | 43.2 mm (1.7 in) |
| 1997 | 96.0 mm (3.8 in) |
| 1998 | 47.2 mm (1.9 in) |
| 1999 | 39.6 mm (1.6 in) |
| 2000 | 48.5 mm (1.9 in) |
| 2001 | 54.4 mm (2.1 in) |
| 2002 | 108.2 mm (4.3 in) |
| 2003 | 34.0 mm (1.3 in) |
| 2004 | 50.8 mm (2.0 in) |
| 2005 | 80.8 mm (3.2 in) |
| 2006 | 26.4 mm (1.0 in) |
| 2007 | 38.1 mm (1.5 in) |
| 2008 | 63.8 mm (2.5 in) |
| 2009 | 43.4 mm (1.7 in) |
| 2010 | 59.9 mm (2.4 in) |
| 2011 | 40.1 mm (1.6 in) |
| 2012 | 49.8 mm (2.0 in) |
| 2013 | 37.8 mm (1.5 in) |
| 2014 | 70.9 mm (2.8 in) |
| 2015 | 44.7 mm (1.8 in) |
| 2016 | 75.2 mm (3.0 in) |
| 2017 | 81.5 mm (3.2 in) |
| 2018 | 34.0 mm (1.3 in) |
| 2019 | 96.8 mm (3.8 in) |
| 2020 | 108.2 mm (4.3 in) |
| 2021 | 43.9 mm (1.7 in) |
| 2022 | 43.9 mm (1.7 in) |
| 2023 | 27.2 mm (1.1 in) |
| 2024 | 59.9 mm (2.4 in) |
| 2025 | 26.2 mm (1.0 in) |
| 2026 | 47.8 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1941 | 97.8 mm (3.9 in) |
| 1942 | 58.6 mm (2.3 in) |
| 1943 | 50.3 mm (2.0 in) |
| 1944 | 168.2 mm (6.6 in) |
| 1945 | 60.0 mm (2.4 in) |
| 1946 | 96.1 mm (3.8 in) |
| 1947 | 65.0 mm (2.6 in) |
| 1948 | 86.8 mm (3.4 in) |
| 1949 | 51.4 mm (2.0 in) |
| 1950 | 71.6 mm (2.8 in) |
| 1951 | 117.3 mm (4.6 in) |
| 1952 | 100.5 mm (4.0 in) |
| 1953 | 52.6 mm (2.1 in) |
| 1954 | 57.9 mm (2.3 in) |
| 1955 | 61.5 mm (2.4 in) |
| 1956 | 69.3 mm (2.7 in) |
| 1957 | 146.3 mm (5.8 in) |
| 1958 | 66.3 mm (2.6 in) |
| 1959 | 53.9 mm (2.1 in) |
| 1960 | 71.7 mm (2.8 in) |
| 1961 | 70.6 mm (2.8 in) |
| 1962 | 48.1 mm (1.9 in) |
| 1963 | 33.0 mm (1.3 in) |
| 1964 | 130.6 mm (5.1 in) |
| 1965 | 52.3 mm (2.1 in) |
| 1966 | 82.3 mm (3.2 in) |
| 1967 | 41.9 mm (1.6 in) |
| 1968 | 116.8 mm (4.6 in) |
| 1969 | 84.8 mm (3.3 in) |
| 1970 | 75.2 mm (3.0 in) |
| 1971 | 45.7 mm (1.8 in) |
| 1972 | 49.3 mm (1.9 in) |
| 1973 | 91.2 mm (3.6 in) |
| 1974 | 90.9 mm (3.6 in) |
| 1975 | 58.4 mm (2.3 in) |
| 1976 | 40.4 mm (1.6 in) |
| 1977 | 45.2 mm (1.8 in) |
| 1978 | 94.8 mm (3.7 in) |
| 1979 | 79.7 mm (3.1 in) |
| 1980 | 56.4 mm (2.2 in) |
| 1981 | 65.5 mm (2.6 in) |
| 1982 | 99.0 mm (3.9 in) |
| 1983 | 43.6 mm (1.7 in) |
| 1984 | 116.4 mm (4.6 in) |
| 1985 | 57.9 mm (2.3 in) |
| 1986 | 46.1 mm (1.8 in) |
| 1987 | 67.1 mm (2.6 in) |
| 1988 | 59.2 mm (2.3 in) |
| 1989 | 40.4 mm (1.6 in) |
| 1990 | 57.4 mm (2.3 in) |
| 1991 | 59.5 mm (2.3 in) |
| 1992 | 59.6 mm (2.3 in) |
| 1993 | 124.2 mm (4.9 in) |
| 1994 | 100.3 mm (3.9 in) |
| 1995 | 144.0 mm (5.7 in) |
| 1996 | 61.3 mm (2.4 in) |
| 1997 | 113.1 mm (4.5 in) |
| 1998 | 77.7 mm (3.1 in) |
| 1999 | 70.6 mm (2.8 in) |
| 2000 | 114.8 mm (4.5 in) |
| 2001 | 91.4 mm (3.6 in) |
| 2002 | 114.3 mm (4.5 in) |
| 2003 | 40.8 mm (1.6 in) |
| 2004 | 62.9 mm (2.5 in) |
| 2005 | 98.6 mm (3.9 in) |
| 2006 | 43.7 mm (1.7 in) |
| 2007 | 62.4 mm (2.5 in) |
| 2008 | 68.6 mm (2.7 in) |
| 2009 | 71.8 mm (2.8 in) |
| 2010 | 80.0 mm (3.1 in) |
| 2011 | 51.9 mm (2.0 in) |
| 2012 | 49.8 mm (2.0 in) |
| 2013 | 79.3 mm (3.1 in) |
| 2014 | 70.9 mm (2.8 in) |
| 2015 | 72.9 mm (2.9 in) |
| 2016 | 88.2 mm (3.5 in) |
| 2017 | 83.8 mm (3.3 in) |
| 2018 | 50.5 mm (2.0 in) |
| 2019 | 114.3 mm (4.5 in) |
| 2020 | 183.9 mm (7.2 in) |
| 2021 | 67.5 mm (2.7 in) |
| 2022 | 78.9 mm (3.1 in) |
| 2023 | 50.1 mm (2.0 in) |
| 2024 | 76.0 mm (3.0 in) |
| 2025 | 43.9 mm (1.7 in) |
| 2026 | 64.5 mm (2.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1941 | 20 days |
| 1942 | 21 days |
| 1943 | 35 days |
| 1944 | 26 days |
| 1945 | 29 days |
| 1946 | 23 days |
| 1947 | 29 days |
| 1948 | 23 days |
| 1949 | 25 days |
| 1950 | 24 days |
| 1951 | 21 days |
| 1952 | 48 days |
| 1953 | 33 days |
| 1954 | 30 days |
| 1955 | 15 days |
| 1956 | 39 days |
| 1957 | 34 days |
| 1958 | 30 days |
| 1959 | 32 days |
| 1960 | 34 days |
| 1961 | 28 days |
| 1962 | 26 days |
| 1963 | 31 days |
| 1964 | 23 days |
| 1965 | 30 days |
| 1966 | 28 days |
| 1967 | 35 days |
| 1968 | 29 days |
| 1969 | 41 days |
| 1970 | 26 days |
| 1971 | 21 days |
| 1972 | 26 days |
| 1973 | 34 days |
| 1974 | 48 days |
| 1975 | 23 days |
| 1976 | 65 days |
| 1977 | 18 days |
| 1978 | 30 days |
| 1979 | 25 days |
| 1980 | 60 days |
| 1981 | 25 days |
| 1982 | 20 days |
| 1983 | 38 days |
| 1984 | 22 days |
| 1985 | 18 days |
| 1986 | 38 days |
| 1987 | 22 days |
| 1988 | 39 days |
| 1989 | 34 days |
| 1990 | 46 days |
| 1991 | 29 days |
| 1992 | 31 days |
| 1993 | 26 days |
| 1994 | 24 days |
| 1995 | 16 days |
| 1996 | 28 days |
| 1997 | 20 days |
| 1998 | 30 days |
| 1999 | 56 days |
| 2000 | 33 days |
| 2001 | 36 days |
| 2002 | 65 days |
| 2003 | 26 days |
| 2004 | 26 days |
| 2005 | 28 days |
| 2006 | 30 days |
| 2007 | 32 days |
| 2008 | 34 days |
| 2009 | 20 days |
| 2010 | 28 days |
| 2011 | 36 days |
| 2012 | 29 days |
| 2013 | 30 days |
| 2014 | 42 days |
| 2015 | 31 days |
| 2016 | 29 days |
| 2017 | 25 days |
| 2018 | 20 days |
| 2019 | 20 days |
| 2020 | 53 days |
| 2021 | 25 days |
| 2022 | 28 days |
| 2023 | 28 days |
| 2024 | 35 days |
| 2025 | 33 days |
| 2026 | 21 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
82 years with a frostAcross 82 years with a frost, the median last spring frost at Grand Forks Intl AP falls on 15 May and the median first autumn frost on 23 September, which leaves a median of 128 days between them.
In 1994 to 2025 the median growing season was 135 days. That is 10 days more than in 1942 to 1971.
Fitted over all years, the growing season changes by +2.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1942 to 1971) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 23 May | 15 May | 8 days earlier | -1.0 days per decade |
| First autumn frost | 23 September | 21 September | 29 September | 8 days later | +1.5 days per decade |
| Growing days | 128 days | 125 days | 135 days | 10 days more | +2.5 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
83 years, 1942 to 2025A day with at least 46.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 126.4 mm (5.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 46.9 mm (1.8 in) | |
| 5 years | 65.2 mm (2.6 in) | |
| 10 years | 78.4 mm (3.1 in) | |
| 25 years | 96.6 mm (3.8 in) | |
| 50 years | 111.1 mm (4.4 in) | |
| 100 years | 126.4 mm (5.0 in) | Longer than the 83 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, 83 years of values from 1942 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: 112.8 mm (4.4 in) in 1995; 108.2 mm (4.3 in) in 2002; 108.2 mm (4.3 in) in 2020.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Grand Forks Intl AP had a mean temperature of 5.1 C (41.2 F) and 528.6 mm (20.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Hankinson (United States, 210 km away), Edgeley 3WNW (United States, 212 km away) and Oakes (United States, 211 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Hankinson | United States | 210 km (130 mi) | 5.3 C (41.6 F) | 541.6 mm (21.3 in) | 0.94 |
| Edgeley 3WNW | United States | 212 km (132 mi) | 5.1 C (41.1 F) | 456.9 mm (18.0 in) | 0.97 |
| Oakes | United States | 211 km (131 mi) | 5.2 C (41.3 F) | 508.0 mm (20.0 in) | 1.01 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).