Agassiz Refuge Weather Records (USC00210050)
Record envelope, standing records and threshold days for Agassiz Refuge (USC00210050), Minnesota, United States, with 70 years of record.
Key Facts for Agassiz Refuge
- Agassiz Refuge (USC00210050) is a weather station in Minnesota, United States at 48.30 latitude and -95.98 longitude, 348 m (1,142 ft) above sea level.
- The station reports from 1957 to 2026, 70 years of record.
- 1,464 records set at Agassiz Refuge still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Agassiz Refuge tied a daily record low maximum temperature of 20.0 C (68.0 F) on 4 August 2026.
About the Station
- Location: Minnesota, United States, 48.30 latitude, -95.98 longitude.
- Elevation: 348 m (1,142 ft).
- Period of record: 1957 to 2026, 70 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 10.0 C (50.0 F) | -42.2 C (-44.0 F) | -5.6 C (21.9 F) | -33.9 C (-29.0 F) |
| Feb | 13.3 C (55.9 F) | -43.3 C (-45.9 F) | 7.8 C (46.0 F) | -26.1 C (-15.0 F) |
| Mar | 21.7 C (71.1 F) | -38.3 C (-36.9 F) | 10.0 C (50.0 F) | -25.6 C (-14.1 F) |
| Apr | 34.4 C (93.9 F) | -24.4 C (-11.9 F) | 27.2 C (81.0 F) | -12.8 C (9.0 F) |
| May | 35.6 C (96.1 F) | -11.7 C (10.9 F) | 32.8 C (91.0 F) | -4.4 C (24.1 F) |
| Jun | 38.3 C (100.9 F) | -2.2 C (28.0 F) | 32.2 C (90.0 F) | 6.1 C (43.0 F) |
| Jul | 37.2 C (99.0 F) | 3.3 C (37.9 F) | 34.4 C (93.9 F) | 10.0 C (50.0 F) |
| Aug | 36.1 C (97.0 F) | -0.6 C (30.9 F) | 28.9 C (84.0 F) | 8.3 C (46.9 F) |
| Sep | 34.4 C (93.9 F) | -7.2 C (19.0 F) | n/a | n/a |
| Oct | 31.1 C (88.0 F) | -17.2 C (1.0 F) | n/a | n/a |
| Nov | 21.1 C (70.0 F) | -33.9 C (-29.0 F) | n/a | n/a |
| Dec | 12.2 C (54.0 F) | -40.0 C (-40.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1957 | 8 |
| 1958 | 28 |
| 1959 | 35 |
| 1960 | 12 |
| 1961 | 23 |
| 1962 | 31 |
| 1963 | 28 |
| 1964 | 24 |
| 1965 | 33 |
| 1966 | 24 |
| 1967 | 45 |
| 1968 | 35 |
| 1969 | 30 |
| 1970 | 16 |
| 1971 | 12 |
| 1972 | 26 |
| 1973 | 25 |
| 1974 | 21 |
| 1975 | 26 |
| 1976 | 26 |
| 1977 | 37 |
| 1978 | 19 |
| 1979 | 16 |
| 1980 | 21 |
| 1981 | 27 |
| 1982 | 20 |
| 1983 | 32 |
| 1984 | 27 |
| 1985 | 23 |
| 1986 | 25 |
| 1987 | 21 |
| 1988 | 34 |
| 1989 | 24 |
| 1990 | 36 |
| 1991 | 41 |
| 1992 | 42 |
| 1993 | 15 |
| 1994 | 16 |
| 1995 | 28 |
| 1996 | 29 |
| 1997 | 35 |
| 1998 | 22 |
| 1999 | 18 |
| 2000 | 33 |
| 2001 | 22 |
| 2002 | 27 |
| 2003 | 33 |
| 2004 | 27 |
| 2005 | 23 |
| 2006 | 30 |
| 2007 | 9 |
| 2008 | 4 |
| 2009 | 10 |
| 2010 | 17 |
| 2011 | 6 |
| 2012 | 6 |
| 2013 | 9 |
| 2014 | 6 |
| 2021 | 9 |
| 2022 | 18 |
| 2023 | 16 |
| 2024 | 19 |
| 2025 | 15 |
| 2026 | 9 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1987-06-22 | Record high maximum temperature | Record high maximum temperature 36.7 C (98.1 F) |
| 1988-07-05 | Record high maximum temperature | Record high maximum temperature 37.2 C (99.0 F) |
| 1988-07-05 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 1996-02-02 | Record low minimum temperature | Record low minimum temperature -43.3 C (-45.9 F) |
| 2021-06-04 | Record high maximum temperature | Record high maximum temperature 38.3 C (100.9 F) |
Wettest Day of Each Month
Aug: 178.6 mm (7.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 22.1 mm (0.9 in) | 23 January 2010 |
| Feb | 13.2 mm (0.5 in) | 24 February 1977 |
| Mar | 26.9 mm (1.1 in) | 7 March 1983 |
| Apr | 41.9 mm (1.6 in) | 6 April 1997 |
| May | 94.0 mm (3.7 in) | 12 May 2004 |
| Jun | 153.7 mm (6.1 in) | 10 June 2002 |
| Jul | 80.5 mm (3.2 in) | 2 July 1975 |
| Aug | 178.6 mm (7.0 in) | 2 August 1964 |
| Sep | 78.7 mm (3.1 in) | 16 September 2022 |
| Oct | 43.2 mm (1.7 in) | 27 October 2000 |
| Nov | 30.7 mm (1.2 in) | 18 November 1958 |
| Dec | 18.0 mm (0.7 in) | 5 December 1960 |
Period of Record Coverage
1957 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1957 | 265 | 73% | No |
| 1958 | 356 | 98% | Yes |
| 1959 | 359 | 98% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 358 | 98% | Yes |
| 1963 | 354 | 97% | Yes |
| 1964 | 358 | 98% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 357 | 98% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 352 | 96% | Yes |
| 1969 | 352 | 96% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 363 | 99% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 364 | 99% | Yes |
| 1977 | 360 | 99% | Yes |
| 1978 | 362 | 99% | Yes |
| 1979 | 358 | 98% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 335 | 92% | Yes |
| 1983 | 312 | 85% | No |
| 1984 | 350 | 96% | Yes |
| 1985 | 357 | 98% | Yes |
| 1986 | 359 | 98% | Yes |
| 1987 | 359 | 98% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 334 | 91% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 357 | 98% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 212 | 58% | No |
| 2008 | 91 | 25% | No |
| 2009 | 212 | 58% | No |
| 2010 | 120 | 33% | No |
| 2011 | 160 | 44% | No |
| 2012 | 139 | 38% | No |
| 2013 | 175 | 48% | No |
| 2014 | 34 | 9% | No |
| 2021 | 219 | 60% | No |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 272 | 75% | No |
| 2026 | 225 | 62% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 August 2026 | Agassiz Refuge, US | daily low max (Tie) | 20.0 C (68.0 F) | tie | 68 years | 6 of 100 (Routine) |
| 3 August 2026 | Agassiz Refuge, US | daily rain | 57.2 mm (2.3 in) | 27.0 mm (1.1 in) | 67 years | 46 of 100 (Notable) |
| 27 July 2026 | Agassiz Refuge, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 43 years | 4 of 100 (Routine) |
| 21 July 2026 | Agassiz Refuge, US | daily low max | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 64 years | 27 of 100 (Routine) |
| 14 July 2026 | Agassiz Refuge, US | daily high min | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 43 years | 22 of 100 (Routine) |
| 13 July 2026 | Agassiz Refuge, US | daily high min | 22.8 C (73.0 F) | 2.2 C (4.0 F) | 56 years | 30 of 100 (Routine) |
| 13 July 2026 | Agassiz Refuge, US | daily high max (Tie) | 33.9 C (93.0 F) | tie | 43 years | 4 of 100 (Routine) |
| 12 July 2026 | Agassiz Refuge, US | daily high max | 34.4 C (93.9 F) | 1.1 C (2.0 F) | 68 years | 30 of 100 (Routine) |
| 12 July 2026 | Agassiz Refuge, US | daily high min | 23.3 C (73.9 F) | 1.1 C (2.0 F) | 31 years | 19 of 100 (Routine) |
| 23 June 2026 | Agassiz Refuge, US | daily rain | 24.1 mm (0.9 in) | 3.0 mm (0.12 in) | 27 years | 17 of 100 (Routine) |
| 19 June 2026 | Agassiz Refuge, US | daily low max | 17.8 C (64.0 F) | 0.5 C (0.9 F) | 44 years | 21 of 100 (Routine) |
| 26 May 2026 | Agassiz Refuge, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 67 years | 27 of 100 (Routine) |
| 25 May 2026 | Agassiz Refuge, US | daily high max | 31.1 C (88.0 F) | 1.1 C (2.0 F) | 48 years | 22 of 100 (Routine) |
| 19 May 2026 | Agassiz Refuge, US | daily low max (Tie) | 7.8 C (46.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 11 May 2026 | Agassiz Refuge, US | daily low min (Tie) | -1.7 C (28.9 F) | tie | 20 years | 3 of 100 (Routine) |
| 18 April 2026 | Agassiz Refuge, US | daily low min | -8.9 C (16.0 F) | 1.1 C (2.0 F) | 4 years | 10 of 100 (Routine) |
| 19 November 2025 | Agassiz Refuge, US | daily high min | 1.7 C (35.1 F) | 1.1 C (2.0 F) | 12 years | 10 of 100 (Routine) |
| 14 November 2025 | Agassiz Refuge, US | daily high max | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 44 years | 20 of 100 (Routine) |
| 7 August 2025 | Agassiz Refuge, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 42 years | 4 of 100 (Routine) |
| 22 July 2025 | Agassiz Refuge, US | daily rain | 30.0 mm (1.2 in) | 6.9 mm (0.27 in) | 38 years | 22 of 100 (Routine) |
Climate Trend
49 complete years, 1958 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1958 | 3.1 C | -0.72 C |
| 1959 | 2.3 C | -1.48 C |
| 1960 | 2.7 C | -1.11 C |
| 1961 | 3.2 C | -0.56 C |
| 1962 | 2.7 C | -1.13 C |
| 1963 | 3.4 C | -0.35 C |
| 1964 | 2.9 C | -0.89 C |
| 1965 | 1.6 C | -2.18 C |
| 1966 | 1.6 C | -2.20 C |
| 1967 | 1.6 C | -2.16 C |
| 1969 | 2.8 C | -0.96 C |
| 1970 | 2.9 C | -0.89 C |
| 1971 | 3.3 C | -0.53 C |
| 1972 | 2.6 C | -1.20 C |
| 1973 | 5.1 C | +1.29 C |
| 1974 | 3.8 C | -0.03 C |
| 1975 | 3.6 C | -0.15 C |
| 1976 | 3.3 C | -0.47 C |
| 1977 | 3.8 C | 0.00 C |
| 1978 | 2.4 C | -1.34 C |
| 1979 | 1.7 C | -2.04 C |
| 1980 | 3.7 C | -0.05 C |
| 1981 | 4.7 C | +0.94 C |
| 1982 | 2.6 C | -1.18 C |
| 1984 | 4.9 C | +1.07 C |
| 1985 | 2.7 C | -1.13 C |
| 1986 | 4.3 C | +0.55 C |
| 1987 | 6.2 C | +2.37 C |
| 1988 | 4.4 C | +0.63 C |
| 1989 | 2.9 C | -0.92 C |
| 1990 | 5.1 C | +1.29 C |
| 1991 | 4.7 C | +0.89 C |
| 1992 | 4.0 C | +0.24 C |
| 1993 | 3.3 C | -0.47 C |
| 1994 | 4.7 C | +0.92 C |
| 1995 | 4.3 C | +0.53 C |
| 1996 | 2.3 C | -1.45 C |
| 1997 | 3.6 C | -0.15 C |
| 1998 | 6.3 C | +2.55 C |
| 1999 | 6.2 C | +2.44 C |
| 2001 | 6.0 C | +2.25 C |
| 2002 | 5.2 C | +1.44 C |
| 2003 | 4.5 C | +0.72 C |
| 2004 | 3.9 C | +0.12 C |
| 2005 | 5.1 C | +1.34 C |
| 2006 | 6.2 C | +2.40 C |
| 2022 | 2.7 C | -1.11 C |
| 2023 | 4.8 C | +1.06 C |
| 2024 | 5.8 C | +2.02 C |
The annual mean temperature here has risen by 0.5 C (0.3 to 0.6) per decade over 1958 to 2024. In Fahrenheit: 0.8 F (0.5 to 1.2) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.5 to 1.2) per decade | 1958 to 2024 | 49 | Rise |
| Mean daily maximum | 0.3 C (0.1 to 0.4) per decade | 0.5 F (0.1 to 0.8) per decade | 1958 to 2024 | 49 | Rise |
| Mean daily minimum | 0.7 C (0.5 to 0.9) per decade | 1.2 F (0.9 to 1.5) per decade | 1958 to 2024 | 49 | 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
1957 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.3 C (100.9 F) | 2021 | 33.3 C (91.9 F) | 64 |
| Coldest night (TNn) | -43.3 C (-45.9 F) | 1996 | -35.6 C (-32.1 F) | 64 |
| Wettest day (Rx1day) | 178.6 mm (7.0 in) | 1964 | 47.5 mm (1.9 in) | 65 |
| Wettest five days (Rx5day) | 210.7 mm (8.3 in) | 2002 | 71.3 mm (2.8 in) | 64 |
| Longest dry spell (CDD) | 74 days | 1976 | 26 days | 65 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1957 | 33.3 C (91.9 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 33.3 C (91.9 F) |
| 1960 | 32.2 C (90.0 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 31.1 C (88.0 F) |
| 1963 | 32.8 C (91.0 F) |
| 1964 | 35.6 C (96.1 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 34.4 C (93.9 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 32.2 C (90.0 F) |
| 1969 | 33.9 C (93.0 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 32.8 C (91.0 F) |
| 1974 | 33.3 C (91.9 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 32.8 C (91.0 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 31.7 C (89.1 F) |
| 1980 | 36.1 C (97.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 31.7 C (89.1 F) |
| 1983 | 35.6 C (96.1 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 32.8 C (91.0 F) |
| 1986 | 33.9 C (93.0 F) |
| 1987 | 36.7 C (98.1 F) |
| 1988 | 37.2 C (99.0 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 32.2 C (90.0 F) |
| 1993 | 31.7 C (89.1 F) |
| 1994 | 28.9 C (84.0 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 33.3 C (91.9 F) |
| 1998 | 32.2 C (90.0 F) |
| 1999 | 33.3 C (91.9 F) |
| 2000 | 32.2 C (90.0 F) |
| 2001 | 34.4 C (93.9 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 31.1 C (88.0 F) |
| 2005 | 32.8 C (91.0 F) |
| 2006 | 36.7 C (98.1 F) |
| 2007 | 25.0 C (77.0 F) |
| 2008 | 18.9 C (66.0 F) |
| 2009 | 21.7 C (71.1 F) |
| 2010 | 20.6 C (69.1 F) |
| 2011 | 21.7 C (71.1 F) |
| 2012 | 16.1 C (61.0 F) |
| 2013 | 29.4 C (84.9 F) |
| 2014 | 17.8 C (64.0 F) |
| 2017 | n/a |
| 2021 | 38.3 C (100.9 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 34.4 C (93.9 F) |
| 2024 | 30.6 C (87.1 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1957 | -28.3 C (-18.9 F) |
| 1958 | -33.3 C (-27.9 F) |
| 1959 | -38.3 C (-36.9 F) |
| 1960 | -33.3 C (-27.9 F) |
| 1961 | -36.7 C (-34.1 F) |
| 1962 | -40.6 C (-41.1 F) |
| 1963 | -37.2 C (-35.0 F) |
| 1964 | -31.7 C (-25.1 F) |
| 1965 | -38.3 C (-36.9 F) |
| 1966 | -42.2 C (-44.0 F) |
| 1967 | -40.0 C (-40.0 F) |
| 1968 | -41.7 C (-43.1 F) |
| 1969 | -34.4 C (-29.9 F) |
| 1970 | -37.2 C (-35.0 F) |
| 1971 | -34.4 C (-29.9 F) |
| 1972 | -38.9 C (-38.0 F) |
| 1973 | -37.8 C (-36.0 F) |
| 1974 | -36.7 C (-34.1 F) |
| 1975 | -33.3 C (-27.9 F) |
| 1976 | -37.2 C (-35.0 F) |
| 1977 | -38.3 C (-36.9 F) |
| 1978 | -33.9 C (-29.0 F) |
| 1979 | -37.2 C (-35.0 F) |
| 1980 | -32.8 C (-27.0 F) |
| 1981 | -35.6 C (-32.1 F) |
| 1982 | -40.0 C (-40.0 F) |
| 1983 | -35.0 C (-31.0 F) |
| 1984 | -35.6 C (-32.1 F) |
| 1985 | -37.2 C (-35.0 F) |
| 1986 | -35.6 C (-32.1 F) |
| 1987 | -37.8 C (-36.0 F) |
| 1988 | -35.6 C (-32.1 F) |
| 1989 | -41.1 C (-42.0 F) |
| 1990 | -37.2 C (-35.0 F) |
| 1991 | -35.6 C (-32.1 F) |
| 1992 | -33.3 C (-27.9 F) |
| 1993 | -33.9 C (-29.0 F) |
| 1994 | -37.8 C (-36.0 F) |
| 1995 | -33.9 C (-29.0 F) |
| 1996 | -43.3 C (-45.9 F) |
| 1997 | -40.0 C (-40.0 F) |
| 1998 | -31.1 C (-24.0 F) |
| 1999 | -32.8 C (-27.0 F) |
| 2000 | -35.0 C (-31.0 F) |
| 2001 | -31.1 C (-24.0 F) |
| 2002 | -26.7 C (-16.1 F) |
| 2003 | -35.0 C (-31.0 F) |
| 2004 | -38.3 C (-36.9 F) |
| 2005 | -40.6 C (-41.1 F) |
| 2006 | -33.3 C (-27.9 F) |
| 2007 | -36.7 C (-34.1 F) |
| 2008 | -32.2 C (-26.0 F) |
| 2009 | -40.6 C (-41.1 F) |
| 2010 | -39.4 C (-38.9 F) |
| 2011 | -40.0 C (-40.0 F) |
| 2012 | -30.6 C (-23.1 F) |
| 2013 | -33.9 C (-29.0 F) |
| 2014 | -38.9 C (-38.0 F) |
| 2017 | n/a |
| 2021 | -33.3 C (-27.9 F) |
| 2022 | -34.4 C (-29.9 F) |
| 2023 | -32.2 C (-26.0 F) |
| 2024 | -28.3 C (-18.9 F) |
| 2025 | -33.3 C (-27.9 F) |
| 2026 | -33.9 C (-29.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1957 | 68.3 mm (2.7 in) |
| 1958 | 49.5 mm (1.9 in) |
| 1959 | 58.4 mm (2.3 in) |
| 1960 | 36.8 mm (1.4 in) |
| 1961 | 35.8 mm (1.4 in) |
| 1962 | 26.9 mm (1.1 in) |
| 1963 | 35.6 mm (1.4 in) |
| 1964 | 178.6 mm (7.0 in) |
| 1965 | 53.1 mm (2.1 in) |
| 1966 | 45.7 mm (1.8 in) |
| 1967 | 31.2 mm (1.2 in) |
| 1968 | 70.9 mm (2.8 in) |
| 1969 | 44.7 mm (1.8 in) |
| 1970 | 57.4 mm (2.3 in) |
| 1971 | 34.5 mm (1.4 in) |
| 1972 | 43.7 mm (1.7 in) |
| 1973 | 41.1 mm (1.6 in) |
| 1974 | 45.2 mm (1.8 in) |
| 1975 | 80.5 mm (3.2 in) |
| 1976 | 64.3 mm (2.5 in) |
| 1977 | 44.5 mm (1.8 in) |
| 1978 | 38.1 mm (1.5 in) |
| 1979 | 47.0 mm (1.9 in) |
| 1980 | 20.1 mm (0.8 in) |
| 1981 | 56.9 mm (2.2 in) |
| 1982 | 49.0 mm (1.9 in) |
| 1983 | 51.8 mm (2.0 in) |
| 1984 | 54.1 mm (2.1 in) |
| 1985 | 49.0 mm (1.9 in) |
| 1986 | 34.3 mm (1.4 in) |
| 1987 | 51.1 mm (2.0 in) |
| 1988 | 58.4 mm (2.3 in) |
| 1989 | 35.6 mm (1.4 in) |
| 1990 | 33.3 mm (1.3 in) |
| 1991 | 47.5 mm (1.9 in) |
| 1992 | 48.3 mm (1.9 in) |
| 1993 | 43.2 mm (1.7 in) |
| 1994 | 53.3 mm (2.1 in) |
| 1995 | 46.0 mm (1.8 in) |
| 1996 | 71.9 mm (2.8 in) |
| 1997 | 58.4 mm (2.3 in) |
| 1998 | 72.1 mm (2.8 in) |
| 1999 | 49.8 mm (2.0 in) |
| 2000 | 43.2 mm (1.7 in) |
| 2001 | 70.6 mm (2.8 in) |
| 2002 | 153.7 mm (6.1 in) |
| 2003 | 30.5 mm (1.2 in) |
| 2004 | 94.0 mm (3.7 in) |
| 2005 | 70.6 mm (2.8 in) |
| 2006 | 47.5 mm (1.9 in) |
| 2007 | 33.8 mm (1.3 in) |
| 2008 | 18.8 mm (0.7 in) |
| 2009 | 17.8 mm (0.7 in) |
| 2010 | 22.1 mm (0.9 in) |
| 2011 | 23.6 mm (0.9 in) |
| 2012 | 41.9 mm (1.6 in) |
| 2013 | 25.9 mm (1.0 in) |
| 2014 | 63.2 mm (2.5 in) |
| 2017 | 0.0 mm (0.00 in) |
| 2021 | 48.5 mm (1.9 in) |
| 2022 | 78.7 mm (3.1 in) |
| 2023 | 36.8 mm (1.4 in) |
| 2024 | 81.3 mm (3.2 in) |
| 2025 | 39.9 mm (1.6 in) |
| 2026 | 57.2 mm (2.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1957 | 126.2 mm (5.0 in) |
| 1958 | 91.9 mm (3.6 in) |
| 1959 | 108.7 mm (4.3 in) |
| 1960 | 85.3 mm (3.4 in) |
| 1961 | 75.7 mm (3.0 in) |
| 1962 | 63.6 mm (2.5 in) |
| 1963 | 67.1 mm (2.6 in) |
| 1964 | 184.7 mm (7.3 in) |
| 1965 | 98.1 mm (3.9 in) |
| 1966 | 82.1 mm (3.2 in) |
| 1967 | 68.0 mm (2.7 in) |
| 1968 | 134.9 mm (5.3 in) |
| 1969 | 50.1 mm (2.0 in) |
| 1970 | 78.5 mm (3.1 in) |
| 1971 | 86.6 mm (3.4 in) |
| 1972 | 48.3 mm (1.9 in) |
| 1973 | 98.2 mm (3.9 in) |
| 1974 | 71.4 mm (2.8 in) |
| 1975 | 130.6 mm (5.1 in) |
| 1976 | 78.6 mm (3.1 in) |
| 1977 | 69.1 mm (2.7 in) |
| 1978 | 56.9 mm (2.2 in) |
| 1979 | 70.9 mm (2.8 in) |
| 1980 | 47.3 mm (1.9 in) |
| 1981 | 57.1 mm (2.2 in) |
| 1982 | 65.3 mm (2.6 in) |
| 1983 | 87.1 mm (3.4 in) |
| 1984 | 127.6 mm (5.0 in) |
| 1985 | 124.0 mm (4.9 in) |
| 1986 | 59.1 mm (2.3 in) |
| 1987 | 70.7 mm (2.8 in) |
| 1988 | 73.4 mm (2.9 in) |
| 1989 | 60.5 mm (2.4 in) |
| 1990 | 55.5 mm (2.2 in) |
| 1991 | 88.9 mm (3.5 in) |
| 1992 | 78.5 mm (3.1 in) |
| 1993 | 68.0 mm (2.7 in) |
| 1994 | 68.6 mm (2.7 in) |
| 1995 | 55.2 mm (2.2 in) |
| 1996 | 98.4 mm (3.9 in) |
| 1997 | 97.8 mm (3.9 in) |
| 1998 | 104.1 mm (4.1 in) |
| 1999 | 82.6 mm (3.3 in) |
| 2000 | 67.9 mm (2.7 in) |
| 2001 | 103.9 mm (4.1 in) |
| 2002 | 210.7 mm (8.3 in) |
| 2003 | 49.2 mm (1.9 in) |
| 2004 | 108.5 mm (4.3 in) |
| 2005 | 73.6 mm (2.9 in) |
| 2006 | 72.6 mm (2.9 in) |
| 2007 | 59.8 mm (2.4 in) |
| 2008 | 39.1 mm (1.5 in) |
| 2009 | 52.1 mm (2.1 in) |
| 2010 | 24.0 mm (0.9 in) |
| 2011 | 27.1 mm (1.1 in) |
| 2012 | 14.2 mm (0.6 in) |
| 2013 | 71.1 mm (2.8 in) |
| 2014 | 4.6 mm (0.18 in) |
| 2017 | n/a |
| 2021 | 48.8 mm (1.9 in) |
| 2022 | 82.0 mm (3.2 in) |
| 2023 | 40.4 mm (1.6 in) |
| 2024 | 85.1 mm (3.4 in) |
| 2025 | 55.9 mm (2.2 in) |
| 2026 | 35.5 mm (1.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1957 | 31 days |
| 1958 | 26 days |
| 1959 | 28 days |
| 1960 | 52 days |
| 1961 | 29 days |
| 1962 | 21 days |
| 1963 | 31 days |
| 1964 | 37 days |
| 1965 | 34 days |
| 1966 | 21 days |
| 1967 | 24 days |
| 1968 | 35 days |
| 1969 | 19 days |
| 1970 | 25 days |
| 1971 | 28 days |
| 1972 | 23 days |
| 1973 | 26 days |
| 1974 | 28 days |
| 1975 | 19 days |
| 1976 | 74 days |
| 1977 | 19 days |
| 1978 | 52 days |
| 1979 | 19 days |
| 1980 | 23 days |
| 1981 | 30 days |
| 1982 | 18 days |
| 1983 | 23 days |
| 1984 | 36 days |
| 1985 | 39 days |
| 1986 | 39 days |
| 1987 | 35 days |
| 1988 | 39 days |
| 1989 | 31 days |
| 1990 | 46 days |
| 1991 | 17 days |
| 1992 | 26 days |
| 1993 | 37 days |
| 1994 | 24 days |
| 1995 | 21 days |
| 1996 | 18 days |
| 1997 | 24 days |
| 1998 | 28 days |
| 1999 | 39 days |
| 2000 | 21 days |
| 2001 | 24 days |
| 2002 | 25 days |
| 2003 | 23 days |
| 2004 | 23 days |
| 2005 | 29 days |
| 2006 | 24 days |
| 2007 | 28 days |
| 2008 | 31 days |
| 2009 | 35 days |
| 2010 | 22 days |
| 2011 | 43 days |
| 2012 | 21 days |
| 2013 | 13 days |
| 2014 | 6 days |
| 2017 | 1 day |
| 2021 | 9 days |
| 2022 | 28 days |
| 2023 | 18 days |
| 2024 | 42 days |
| 2025 | 37 days |
| 2026 | 4 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
49 years with a frostAcross 49 years with a frost, the median last spring frost at Agassiz Refuge falls on 14 May and the median first autumn frost on 20 September, which leaves a median of 128 days between them.
Fitted over all years, the growing season changes by +5.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1978 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 14 May | n/a | 11 May | n/a | -2.8 days per decade |
| First autumn frost | 20 September | n/a | 23 September | n/a | +2.4 days per decade |
| Growing days | 128 days | n/a | 134 days | n/a | +5.2 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
48 years, 1958 to 2024A day with at least 47.5 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 165.3 mm (6.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 47.5 mm (1.9 in) | |
| 5 years | 66.9 mm (2.6 in) | |
| 10 years | 83.5 mm (3.3 in) | |
| 25 years | 110.2 mm (4.3 in) | |
| 50 years | 135.2 mm (5.3 in) | Longer than the 48 years of record |
| 100 years | 165.3 mm (6.5 in) | Longer than the 48 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, 48 years of values from 1958 to 2024.
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: 178.6 mm (7.0 in) in 1964; 153.7 mm (6.1 in) in 2002; 94.0 mm (3.7 in) in 2004.
Station Changes
3 suspected3 changes were suspected in the annual mean temperature of Agassiz Refuge, at 1969, 1976 and 1993. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1969 ran 1.0 C (1.8 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1976 ran 0.4 C (0.8 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.6 C (1.0 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1969 | +1.0 | +1.8 | likely | 5 |
| 1976 | -0.4 | -0.8 | possible | 5 |
| 1993 | +0.6 | +1.0 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).