Grantsburg Weather Records (USW00014995)
Record envelope, standing records and threshold days for Grantsburg (USW00014995), Wisconsin, United States, with 77 years of record.
Key Facts for Grantsburg
- Grantsburg (USW00014995) is a weather station in Wisconsin, United States at 45.77 latitude and -92.69 longitude, 302 m (990 ft) above sea level.
- The station reports from 1950 to 2026, 77 years of record.
- 1,464 records set at Grantsburg still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Grantsburg set a daily record precipitation of 48.5 mm (1.9 in) on 27 April 2026.
About the Station
- Location: Wisconsin, United States, 45.77 latitude, -92.69 longitude.
- Elevation: 302 m (990 ft).
- Period of record: 1950 to 2026, 77 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 | 11.1 C (52.0 F) | -42.2 C (-44.0 F) | 5.6 C (42.1 F) | -32.8 C (-27.0 F) |
| Feb | 18.3 C (64.9 F) | -41.1 C (-42.0 F) | 18.3 C (64.9 F) | -19.4 C (-2.9 F) |
| Mar | 27.8 C (82.0 F) | -39.4 C (-38.9 F) | 23.3 C (73.9 F) | -21.7 C (-7.1 F) |
| Apr | 35.0 C (95.0 F) | -18.9 C (-2.0 F) | n/a | n/a |
| May | 35.0 C (95.0 F) | -9.4 C (15.1 F) | n/a | n/a |
| Jun | 37.2 C (99.0 F) | -1.7 C (28.9 F) | n/a | n/a |
| Jul | 40.6 C (105.1 F) | 2.2 C (36.0 F) | n/a | n/a |
| Aug | 37.8 C (100.0 F) | 0.0 C (32.0 F) | n/a | n/a |
| Sep | 36.1 C (97.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| Oct | 31.1 C (88.0 F) | -13.9 C (7.0 F) | n/a | n/a |
| Nov | 23.3 C (73.9 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Dec | 15.6 C (60.1 F) | -40.0 C (-40.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1950 | 17 |
| 1951 | 40 |
| 1952 | 35 |
| 1953 | 29 |
| 1954 | 17 |
| 1955 | 29 |
| 1956 | 30 |
| 1957 | 15 |
| 1958 | 23 |
| 1959 | 35 |
| 1960 | 19 |
| 1961 | 16 |
| 1962 | 19 |
| 1963 | 22 |
| 1964 | 25 |
| 1965 | 20 |
| 1966 | 37 |
| 1967 | 21 |
| 1968 | 25 |
| 1969 | 28 |
| 1970 | 12 |
| 1971 | 10 |
| 1972 | 16 |
| 1973 | 4 |
| 1974 | 18 |
| 1975 | 8 |
| 1976 | 25 |
| 1977 | 18 |
| 1978 | 9 |
| 1979 | 18 |
| 1980 | 14 |
| 1981 | 11 |
| 1982 | 14 |
| 1983 | 23 |
| 1984 | 12 |
| 1985 | 11 |
| 1986 | 5 |
| 1987 | 13 |
| 1988 | 23 |
| 1989 | 19 |
| 1990 | 17 |
| 1991 | 24 |
| 1992 | 9 |
| 1993 | 15 |
| 1994 | 13 |
| 1995 | 15 |
| 1996 | 17 |
| 1997 | 11 |
| 1998 | 19 |
| 1999 | 11 |
| 2000 | 31 |
| 2001 | 21 |
| 2002 | 21 |
| 2003 | 18 |
| 2004 | 14 |
| 2005 | 25 |
| 2006 | 22 |
| 2007 | 23 |
| 2008 | 7 |
| 2009 | 20 |
| 2010 | 16 |
| 2011 | 16 |
| 2012 | 32 |
| 2013 | 21 |
| 2014 | 20 |
| 2015 | 12 |
| 2016 | 15 |
| 2017 | 30 |
| 2018 | 21 |
| 2019 | 11 |
| 2020 | 25 |
| 2021 | 19 |
| 2022 | 9 |
| 2023 | 26 |
| 2024 | 26 |
| 2025 | 19 |
| 2026 | 8 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1982-01-23 | Record daily snowfall | Record daily snowfall 33.0 cm (13.0 in) |
| 1982-12-28 | Record daily snowfall | Record daily snowfall 43.2 cm (17.0 in) |
| 1985-01-20 | Record low maximum temperature | Record low maximum temperature -29.4 C (-20.9 F) |
| 2005-09-13 | Record daily precipitation | Record daily precipitation 157.5 mm (6.2 in) |
| 2005-10-05 | Record daily precipitation | Record daily precipitation 198.9 mm (7.8 in) |
| 2006-07-16 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
Wettest Day of Each Month
Oct: 198.9 mm (7.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 29.0 mm (1.1 in) | 18 January 1996 |
| Feb | 29.7 mm (1.2 in) | 14 February 2023 |
| Mar | 46.0 mm (1.8 in) | 16 March 2016 |
| Apr | 69.9 mm (2.8 in) | 19 April 2004 |
| May | 88.6 mm (3.5 in) | 20 May 1953 |
| Jun | 134.1 mm (5.3 in) | 12 June 1984 |
| Jul | 117.6 mm (4.6 in) | 12 July 2016 |
| Aug | 141.7 mm (5.6 in) | 31 August 1973 |
| Sep | 157.5 mm (6.2 in) | 13 September 2005 |
| Oct | 198.9 mm (7.8 in) | 5 October 2005 |
| Nov | 51.8 mm (2.0 in) | 17 November 1996 |
| Dec | 42.4 mm (1.7 in) | 13 December 1968 |
Period of Record Coverage
1950 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1950 | 184 | 50% | No |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 361 | 99% | Yes |
| 1962 | 312 | 85% | No |
| 1963 | 349 | 96% | Yes |
| 1964 | 360 | 98% | Yes |
| 1965 | 357 | 98% | Yes |
| 1966 | 359 | 98% | Yes |
| 1967 | 351 | 96% | Yes |
| 1968 | 331 | 90% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 360 | 99% | Yes |
| 1971 | 362 | 99% | Yes |
| 1972 | 334 | 91% | Yes |
| 1973 | 299 | 82% | No |
| 1974 | 302 | 83% | No |
| 1975 | 347 | 95% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 332 | 91% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 332 | 91% | Yes |
| 1986 | 271 | 74% | No |
| 1987 | 273 | 75% | No |
| 1988 | 336 | 92% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 361 | 99% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 333 | 91% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 303 | 83% | No |
| 2018 | 364 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 331 | 90% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 364 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 343 | 94% | Yes |
| 2026 | 89 | 24% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 April 2026 | Grantsburg, US | daily rain | 48.5 mm (1.9 in) | 5.3 mm (0.21 in) | 56 years | 30 of 100 (Routine) |
| 5 April 2026 | Grantsburg, US | daily rain | 21.6 mm (0.9 in) | 5.1 mm (0.20 in) | 61 years | 20 of 100 (Routine) |
| 25 March 2026 | Grantsburg, US | daily high max (Tie) | 21.7 C (71.1 F) | tie | 39 years | 4 of 100 (Routine) |
| 21 March 2026 | Grantsburg, US | daily high max | 23.3 C (73.9 F) | 6.1 C (11.0 F) | 13 years | 20 of 100 (Routine) |
| 9 March 2026 | Grantsburg, US | daily high min | 3.3 C (37.9 F) | 1.6 C (2.9 F) | 57 years | 26 of 100 (Routine) |
| 27 February 2026 | Grantsburg, US | monthly high max | 18.3 C (64.9 F) | 2.7 C (4.9 F) | 9 years | 22 of 100 (Routine) |
| 18 February 2026 | Grantsburg, US | daily rain | 19.3 mm (0.8 in) | 9.6 mm (0.38 in) | 71 years | 20 of 100 (Routine) |
| 18 February 2026 | Grantsburg, US | daily high min | 2.2 C (36.0 F) | 1.1 C (2.0 F) | 28 years | 16 of 100 (Routine) |
| 16 February 2026 | Grantsburg, US | daily high max | 10.6 C (51.1 F) | 2.8 C (5.0 F) | 42 years | 23 of 100 (Routine) |
| 15 February 2026 | Grantsburg, US | daily high max | 9.4 C (48.9 F) | 2.2 C (4.0 F) | 24 years | 17 of 100 (Routine) |
| 14 February 2026 | Grantsburg, US | daily high max | 10.6 C (51.1 F) | 2.3 C (4.1 F) | 8 years | 12 of 100 (Routine) |
| 24 January 2026 | Grantsburg, US | daily low max (Tie) | -20.6 C (-5.1 F) | tie | 39 years | 4 of 100 (Routine) |
| 7 January 2026 | Grantsburg, US | daily high min | -2.2 C (28.0 F) | 0.6 C (1.1 F) | 48 years | 21 of 100 (Routine) |
| 29 December 2025 | Grantsburg, US | daily snowfall (Tie) | 11.4 cm (4.5 in) | tie | 4 years | 2 of 100 (Routine) |
| 25 November 2025 | Grantsburg, US | daily high min | 2.8 C (37.0 F) | 1.1 C (2.0 F) | 24 years | 15 of 100 (Routine) |
| 4 October 2025 | Grantsburg, US | daily high max | 30.6 C (87.1 F) | 2.3 C (4.1 F) | 56 years | 26 of 100 (Routine) |
| 4 October 2025 | Grantsburg, US | daily high min | 18.3 C (64.9 F) | 1.6 C (2.9 F) | 2 years | 10 of 100 (Routine) |
| 2 October 2025 | Grantsburg, US | daily high min | 17.8 C (64.0 F) | 1.1 C (2.0 F) | 72 years | 30 of 100 (Routine) |
| 5 September 2025 | Grantsburg, US | daily low max | 13.3 C (55.9 F) | 2.3 C (4.1 F) | 67 years | 31 of 100 (Routine) |
| 4 September 2025 | Grantsburg, US | daily low max | 12.2 C (54.0 F) | 3.4 C (6.1 F) | 51 years | 28 of 100 (Routine) |
Climate Trend
61 complete years, 1951 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 3.4 C | -2.27 C |
| 1952 | 5.3 C | -0.41 C |
| 1953 | 5.6 C | -0.14 C |
| 1954 | 5.3 C | -0.44 C |
| 1955 | 4.9 C | -0.80 C |
| 1956 | 4.4 C | -1.34 C |
| 1957 | 4.6 C | -1.07 C |
| 1958 | 4.9 C | -0.83 C |
| 1959 | 5.1 C | -0.64 C |
| 1960 | 4.7 C | -0.99 C |
| 1961 | 6.3 C | +0.60 C |
| 1963 | 6.0 C | +0.27 C |
| 1964 | 6.2 C | +0.55 C |
| 1965 | 4.6 C | -1.06 C |
| 1966 | 4.6 C | -1.05 C |
| 1967 | 4.9 C | -0.77 C |
| 1969 | 5.4 C | -0.27 C |
| 1970 | 5.1 C | -0.59 C |
| 1971 | 4.8 C | -0.92 C |
| 1975 | 5.1 C | -0.64 C |
| 1976 | 4.7 C | -0.96 C |
| 1977 | 5.5 C | -0.15 C |
| 1979 | 4.3 C | -1.42 C |
| 1980 | 5.0 C | -0.67 C |
| 1981 | 6.0 C | +0.33 C |
| 1982 | 4.4 C | -1.29 C |
| 1983 | 5.4 C | -0.30 C |
| 1984 | 5.6 C | -0.11 C |
| 1989 | 4.4 C | -1.34 C |
| 1990 | 6.3 C | +0.58 C |
| 1991 | 5.7 C | +0.00 C |
| 1992 | 5.6 C | -0.13 C |
| 1993 | 4.6 C | -1.08 C |
| 1994 | 5.5 C | -0.18 C |
| 1995 | 5.0 C | -0.65 C |
| 1996 | 3.9 C | -1.80 C |
| 1997 | 5.5 C | -0.23 C |
| 1998 | 8.2 C | +2.47 C |
| 1999 | 7.1 C | +1.43 C |
| 2000 | 6.3 C | +0.62 C |
| 2001 | 7.1 C | +1.42 C |
| 2002 | 6.4 C | +0.70 C |
| 2003 | 6.0 C | +0.27 C |
| 2004 | 6.0 C | +0.27 C |
| 2005 | 7.4 C | +1.68 C |
| 2006 | 8.0 C | +2.32 C |
| 2007 | 7.0 C | +1.29 C |
| 2008 | 5.2 C | -0.47 C |
| 2009 | 5.6 C | -0.09 C |
| 2010 | 7.1 C | +1.38 C |
| 2012 | 8.2 C | +2.54 C |
| 2013 | 4.9 C | -0.77 C |
| 2014 | 4.2 C | -1.47 C |
| 2015 | 7.2 C | +1.50 C |
| 2016 | 7.8 C | +2.12 C |
| 2018 | 5.8 C | +0.06 C |
| 2019 | 4.8 C | -0.94 C |
| 2021 | 7.2 C | +1.54 C |
| 2022 | 5.3 C | -0.39 C |
| 2023 | 7.6 C | +1.89 C |
| 2024 | 8.4 C | +2.72 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1951 to 2024. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 61 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 | 1951 to 2024 | 61 | Rise |
| Mean daily maximum | 0.17 C (0.04 to 0.30) per decade | 0.3 F (0.1 to 0.5) per decade | 1951 to 2024 | 61 | Rise |
| Mean daily minimum | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.5 to 0.9) per decade | 1951 to 2024 | 61 | 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
1950 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 2006 | 34.4 C (93.9 F) | 77 |
| Coldest night (TNn) | -42.2 C (-44.0 F) | 1965 | -33.3 C (-27.9 F) | 77 |
| Wettest day (Rx1day) | 198.9 mm (7.8 in) | 2005 | 57.2 mm (2.3 in) | 77 |
| Wettest five days (Rx5day) | 206.5 mm (8.1 in) | 2005 | 90.2 mm (3.6 in) | 77 |
| Longest dry spell (CDD) | 37 days | 2002 | 24 days | 77 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1950 | 36.7 C (98.1 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 32.8 C (91.0 F) |
| 1953 | 34.4 C (93.9 F) |
| 1954 | 32.8 C (91.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 34.4 C (93.9 F) |
| 1958 | 34.4 C (93.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 35.6 C (96.1 F) |
| 1962 | 32.8 C (91.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 35.6 C (96.1 F) |
| 1967 | 32.2 C (90.0 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 36.1 C (97.0 F) |
| 1970 | 35.0 C (95.0 F) |
| 1971 | 33.3 C (91.9 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 32.2 C (90.0 F) |
| 1974 | 34.4 C (93.9 F) |
| 1975 | 31.1 C (88.0 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 34.4 C (93.9 F) |
| 1978 | 32.8 C (91.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 35.6 C (96.1 F) |
| 1981 | 31.7 C (89.1 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 32.2 C (90.0 F) |
| 1984 | 31.1 C (88.0 F) |
| 1985 | 32.8 C (91.0 F) |
| 1986 | 32.8 C (91.0 F) |
| 1987 | 33.3 C (91.9 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 36.7 C (98.1 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 32.8 C (91.0 F) |
| 1993 | 31.1 C (88.0 F) |
| 1994 | 33.9 C (93.0 F) |
| 1995 | 35.0 C (95.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 33.9 C (93.0 F) |
| 1998 | 33.9 C (93.0 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 35.6 C (96.1 F) |
| 2004 | 35.6 C (96.1 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 37.2 C (99.0 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 33.9 C (93.0 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 37.8 C (100.0 F) |
| 2014 | 33.3 C (91.9 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 34.4 C (93.9 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 32.2 C (90.0 F) |
| 2020 | 33.9 C (93.0 F) |
| 2021 | 35.0 C (95.0 F) |
| 2022 | 35.0 C (95.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 31.7 C (89.1 F) |
| 2025 | 32.8 C (91.0 F) |
| 2026 | 23.3 C (73.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1950 | -32.2 C (-26.0 F) |
| 1951 | -39.4 C (-38.9 F) |
| 1952 | -38.9 C (-38.0 F) |
| 1953 | -37.2 C (-35.0 F) |
| 1954 | -38.9 C (-38.0 F) |
| 1955 | -39.4 C (-38.9 F) |
| 1956 | -34.4 C (-29.9 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -32.2 C (-26.0 F) |
| 1959 | -34.4 C (-29.9 F) |
| 1960 | -32.2 C (-26.0 F) |
| 1961 | -34.4 C (-29.9 F) |
| 1962 | -39.4 C (-38.9 F) |
| 1963 | -37.8 C (-36.0 F) |
| 1964 | -31.1 C (-24.0 F) |
| 1965 | -42.2 C (-44.0 F) |
| 1966 | -38.3 C (-36.9 F) |
| 1967 | -38.3 C (-36.9 F) |
| 1968 | -40.0 C (-40.0 F) |
| 1969 | -35.6 C (-32.1 F) |
| 1970 | -39.4 C (-38.9 F) |
| 1971 | -37.8 C (-36.0 F) |
| 1972 | -39.4 C (-38.9 F) |
| 1973 | -37.2 C (-35.0 F) |
| 1974 | -35.0 C (-31.0 F) |
| 1975 | -34.4 C (-29.9 F) |
| 1976 | -34.4 C (-29.9 F) |
| 1977 | -41.1 C (-42.0 F) |
| 1978 | -31.1 C (-24.0 F) |
| 1979 | -36.1 C (-33.0 F) |
| 1980 | -33.3 C (-27.9 F) |
| 1981 | -32.8 C (-27.0 F) |
| 1982 | -37.8 C (-36.0 F) |
| 1983 | -37.8 C (-36.0 F) |
| 1984 | -36.7 C (-34.1 F) |
| 1985 | -34.4 C (-29.9 F) |
| 1986 | -30.6 C (-23.1 F) |
| 1987 | -30.0 C (-22.0 F) |
| 1988 | -32.2 C (-26.0 F) |
| 1989 | -33.9 C (-29.0 F) |
| 1990 | -33.3 C (-27.9 F) |
| 1991 | -28.9 C (-20.0 F) |
| 1992 | -31.7 C (-25.1 F) |
| 1993 | -30.0 C (-22.0 F) |
| 1994 | -39.4 C (-38.9 F) |
| 1995 | -28.9 C (-20.0 F) |
| 1996 | -41.1 C (-42.0 F) |
| 1997 | -32.2 C (-26.0 F) |
| 1998 | -31.1 C (-24.0 F) |
| 1999 | -31.1 C (-24.0 F) |
| 2000 | -31.7 C (-25.1 F) |
| 2001 | -27.8 C (-18.0 F) |
| 2002 | -25.6 C (-14.1 F) |
| 2003 | -33.3 C (-27.9 F) |
| 2004 | -33.9 C (-29.0 F) |
| 2005 | -34.4 C (-29.9 F) |
| 2006 | -29.4 C (-20.9 F) |
| 2007 | -35.0 C (-31.0 F) |
| 2008 | -30.0 C (-22.0 F) |
| 2009 | -36.1 C (-33.0 F) |
| 2010 | -32.2 C (-26.0 F) |
| 2011 | -35.0 C (-31.0 F) |
| 2012 | -26.1 C (-15.0 F) |
| 2013 | -31.7 C (-25.1 F) |
| 2014 | -32.8 C (-27.0 F) |
| 2015 | -33.3 C (-27.9 F) |
| 2016 | -32.2 C (-26.0 F) |
| 2017 | -32.2 C (-26.0 F) |
| 2018 | -32.8 C (-27.0 F) |
| 2019 | -38.9 C (-38.0 F) |
| 2020 | -30.6 C (-23.1 F) |
| 2021 | -34.4 C (-29.9 F) |
| 2022 | -29.4 C (-20.9 F) |
| 2023 | -28.3 C (-18.9 F) |
| 2024 | -25.6 C (-14.1 F) |
| 2025 | -32.8 C (-27.0 F) |
| 2026 | -32.8 C (-27.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1950 | 31.0 mm (1.2 in) |
| 1951 | 56.1 mm (2.2 in) |
| 1952 | 72.4 mm (2.9 in) |
| 1953 | 88.6 mm (3.5 in) |
| 1954 | 61.7 mm (2.4 in) |
| 1955 | 55.9 mm (2.2 in) |
| 1956 | 102.9 mm (4.1 in) |
| 1957 | 72.1 mm (2.8 in) |
| 1958 | 57.2 mm (2.3 in) |
| 1959 | 49.0 mm (1.9 in) |
| 1960 | 67.1 mm (2.6 in) |
| 1961 | 51.1 mm (2.0 in) |
| 1962 | 40.6 mm (1.6 in) |
| 1963 | 69.1 mm (2.7 in) |
| 1964 | 50.8 mm (2.0 in) |
| 1965 | 47.5 mm (1.9 in) |
| 1966 | 46.2 mm (1.8 in) |
| 1967 | 44.2 mm (1.7 in) |
| 1968 | 111.0 mm (4.4 in) |
| 1969 | 43.2 mm (1.7 in) |
| 1970 | 55.9 mm (2.2 in) |
| 1971 | 50.0 mm (2.0 in) |
| 1972 | 54.9 mm (2.2 in) |
| 1973 | 141.7 mm (5.6 in) |
| 1974 | 53.8 mm (2.1 in) |
| 1975 | 81.5 mm (3.2 in) |
| 1976 | 28.7 mm (1.1 in) |
| 1977 | 44.2 mm (1.7 in) |
| 1978 | 82.3 mm (3.2 in) |
| 1979 | 49.5 mm (1.9 in) |
| 1980 | 69.3 mm (2.7 in) |
| 1981 | 89.9 mm (3.5 in) |
| 1982 | 61.5 mm (2.4 in) |
| 1983 | 34.3 mm (1.4 in) |
| 1984 | 134.1 mm (5.3 in) |
| 1985 | 120.1 mm (4.7 in) |
| 1986 | 68.6 mm (2.7 in) |
| 1987 | 31.5 mm (1.2 in) |
| 1988 | 42.9 mm (1.7 in) |
| 1989 | 55.6 mm (2.2 in) |
| 1990 | 39.9 mm (1.6 in) |
| 1991 | 72.4 mm (2.9 in) |
| 1992 | 50.0 mm (2.0 in) |
| 1993 | 87.6 mm (3.4 in) |
| 1994 | 51.8 mm (2.0 in) |
| 1995 | 88.1 mm (3.5 in) |
| 1996 | 54.4 mm (2.1 in) |
| 1997 | 61.7 mm (2.4 in) |
| 1998 | 50.5 mm (2.0 in) |
| 1999 | 54.6 mm (2.1 in) |
| 2000 | 61.0 mm (2.4 in) |
| 2001 | 62.2 mm (2.4 in) |
| 2002 | 83.3 mm (3.3 in) |
| 2003 | 66.8 mm (2.6 in) |
| 2004 | 69.9 mm (2.8 in) |
| 2005 | 198.9 mm (7.8 in) |
| 2006 | 52.1 mm (2.1 in) |
| 2007 | 35.1 mm (1.4 in) |
| 2008 | 42.4 mm (1.7 in) |
| 2009 | 58.9 mm (2.3 in) |
| 2010 | 63.0 mm (2.5 in) |
| 2011 | 45.2 mm (1.8 in) |
| 2012 | 48.5 mm (1.9 in) |
| 2013 | 40.1 mm (1.6 in) |
| 2014 | 62.7 mm (2.5 in) |
| 2015 | 76.5 mm (3.0 in) |
| 2016 | 117.6 mm (4.6 in) |
| 2017 | 75.2 mm (3.0 in) |
| 2018 | 64.8 mm (2.6 in) |
| 2019 | 60.2 mm (2.4 in) |
| 2020 | 48.3 mm (1.9 in) |
| 2021 | 62.2 mm (2.4 in) |
| 2022 | 39.4 mm (1.6 in) |
| 2023 | 55.4 mm (2.2 in) |
| 2024 | 65.8 mm (2.6 in) |
| 2025 | 58.2 mm (2.3 in) |
| 2026 | 48.5 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1950 | 50.8 mm (2.0 in) |
| 1951 | 101.1 mm (4.0 in) |
| 1952 | 134.9 mm (5.3 in) |
| 1953 | 130.6 mm (5.1 in) |
| 1954 | 120.4 mm (4.7 in) |
| 1955 | 78.2 mm (3.1 in) |
| 1956 | 114.6 mm (4.5 in) |
| 1957 | 91.9 mm (3.6 in) |
| 1958 | 83.1 mm (3.3 in) |
| 1959 | 81.2 mm (3.2 in) |
| 1960 | 110.4 mm (4.3 in) |
| 1961 | 71.2 mm (2.8 in) |
| 1962 | 92.3 mm (3.6 in) |
| 1963 | 69.6 mm (2.7 in) |
| 1964 | 72.6 mm (2.9 in) |
| 1965 | 87.9 mm (3.5 in) |
| 1966 | 62.9 mm (2.5 in) |
| 1967 | 89.6 mm (3.5 in) |
| 1968 | 113.0 mm (4.4 in) |
| 1969 | 47.8 mm (1.9 in) |
| 1970 | 109.0 mm (4.3 in) |
| 1971 | 79.5 mm (3.1 in) |
| 1972 | 112.0 mm (4.4 in) |
| 1973 | 144.7 mm (5.7 in) |
| 1974 | 103.4 mm (4.1 in) |
| 1975 | 145.0 mm (5.7 in) |
| 1976 | 55.1 mm (2.2 in) |
| 1977 | 91.5 mm (3.6 in) |
| 1978 | 161.6 mm (6.4 in) |
| 1979 | 54.1 mm (2.1 in) |
| 1980 | 119.4 mm (4.7 in) |
| 1981 | 135.7 mm (5.3 in) |
| 1982 | 93.7 mm (3.7 in) |
| 1983 | 70.6 mm (2.8 in) |
| 1984 | 193.0 mm (7.6 in) |
| 1985 | 125.4 mm (4.9 in) |
| 1986 | 151.1 mm (5.9 in) |
| 1987 | 68.3 mm (2.7 in) |
| 1988 | 57.6 mm (2.3 in) |
| 1989 | 69.9 mm (2.8 in) |
| 1990 | 55.1 mm (2.2 in) |
| 1991 | 81.8 mm (3.2 in) |
| 1992 | 79.2 mm (3.1 in) |
| 1993 | 122.7 mm (4.8 in) |
| 1994 | 103.4 mm (4.1 in) |
| 1995 | 197.9 mm (7.8 in) |
| 1996 | 92.2 mm (3.6 in) |
| 1997 | 93.9 mm (3.7 in) |
| 1998 | 81.0 mm (3.2 in) |
| 1999 | 90.2 mm (3.6 in) |
| 2000 | 74.0 mm (2.9 in) |
| 2001 | 121.2 mm (4.8 in) |
| 2002 | 147.8 mm (5.8 in) |
| 2003 | 74.8 mm (2.9 in) |
| 2004 | 87.4 mm (3.4 in) |
| 2005 | 206.5 mm (8.1 in) |
| 2006 | 70.7 mm (2.8 in) |
| 2007 | 62.1 mm (2.4 in) |
| 2008 | 67.2 mm (2.6 in) |
| 2009 | 86.6 mm (3.4 in) |
| 2010 | 116.8 mm (4.6 in) |
| 2011 | 77.3 mm (3.0 in) |
| 2012 | 149.2 mm (5.9 in) |
| 2013 | 53.9 mm (2.1 in) |
| 2014 | 72.9 mm (2.9 in) |
| 2015 | 114.9 mm (4.5 in) |
| 2016 | 145.0 mm (5.7 in) |
| 2017 | 86.1 mm (3.4 in) |
| 2018 | 105.7 mm (4.2 in) |
| 2019 | 104.9 mm (4.1 in) |
| 2020 | 72.4 mm (2.9 in) |
| 2021 | 77.4 mm (3.0 in) |
| 2022 | 68.3 mm (2.7 in) |
| 2023 | 101.4 mm (4.0 in) |
| 2024 | 99.7 mm (3.9 in) |
| 2025 | 60.0 mm (2.4 in) |
| 2026 | 59.7 mm (2.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1950 | 25 days |
| 1951 | 17 days |
| 1952 | 28 days |
| 1953 | 24 days |
| 1954 | 25 days |
| 1955 | 16 days |
| 1956 | 24 days |
| 1957 | 19 days |
| 1958 | 29 days |
| 1959 | 23 days |
| 1960 | 26 days |
| 1961 | 27 days |
| 1962 | 28 days |
| 1963 | 28 days |
| 1964 | 21 days |
| 1965 | 22 days |
| 1966 | 23 days |
| 1967 | 23 days |
| 1968 | 30 days |
| 1969 | 26 days |
| 1970 | 26 days |
| 1971 | 19 days |
| 1972 | 14 days |
| 1973 | 24 days |
| 1974 | 21 days |
| 1975 | 22 days |
| 1976 | 35 days |
| 1977 | 25 days |
| 1978 | 28 days |
| 1979 | 24 days |
| 1980 | 30 days |
| 1981 | 31 days |
| 1982 | 18 days |
| 1983 | 14 days |
| 1984 | 21 days |
| 1985 | 18 days |
| 1986 | 20 days |
| 1987 | 29 days |
| 1988 | 27 days |
| 1989 | 18 days |
| 1990 | 22 days |
| 1991 | 19 days |
| 1992 | 26 days |
| 1993 | 15 days |
| 1994 | 20 days |
| 1995 | 27 days |
| 1996 | 16 days |
| 1997 | 28 days |
| 1998 | 22 days |
| 1999 | 24 days |
| 2000 | 18 days |
| 2001 | 25 days |
| 2002 | 37 days |
| 2003 | 28 days |
| 2004 | 19 days |
| 2005 | 15 days |
| 2006 | 22 days |
| 2007 | 25 days |
| 2008 | 28 days |
| 2009 | 28 days |
| 2010 | 29 days |
| 2011 | 24 days |
| 2012 | 26 days |
| 2013 | 17 days |
| 2014 | 24 days |
| 2015 | 17 days |
| 2016 | 19 days |
| 2017 | 20 days |
| 2018 | 23 days |
| 2019 | 27 days |
| 2020 | 27 days |
| 2021 | 17 days |
| 2022 | 17 days |
| 2023 | 19 days |
| 2024 | 35 days |
| 2025 | 24 days |
| 2026 | 27 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
61 years with a frostAcross 61 years with a frost, the median last spring frost at Grantsburg falls on 15 May and the median first autumn frost on 24 September, which leaves a median of 137 days between them.
In 1992 to 2024 the median growing season was 144 days. That is 22 days more than in 1951 to 1990.
Fitted over all years, the growing season changes by +6.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1951 to 1990) | Recent period (1992 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 15 May | 19 May | 11 May | 8 days earlier | -3.2 days per decade |
| First autumn frost | 24 September | 23 September | 30 September | 7 days later | +2.9 days per decade |
| Growing days | 137 days | 122 days | 144 days | 22 days more | +6.1 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
67 years, 1951 to 2025A day with at least 58.0 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 168.1 mm (6.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 58.0 mm (2.3 in) | |
| 5 years | 78.2 mm (3.1 in) | |
| 10 years | 94.6 mm (3.7 in) | |
| 25 years | 119.7 mm (4.7 in) | |
| 50 years | 142.1 mm (5.6 in) | |
| 100 years | 168.1 mm (6.6 in) | Longer than the 67 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, 67 years of values from 1951 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: 198.9 mm (7.8 in) in 2005; 134.1 mm (5.3 in) in 1984; 120.1 mm (4.7 in) in 1985.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Grantsburg, at 1971 and 1998. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.3 C (0.6 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1971 | -0.3 | -0.6 | possible | 5 |
| 1998 | +0.3 | +0.5 | 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.
Climate Twins
2007 to 2024 against 1961 to 1990Over 2007 to 2024, Grantsburg had a mean temperature of 6.4 C (43.6 F) and 873.6 mm (34.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Grand Meadow (United States, 230 km away), Cresco 1 NE (United States, 269 km away) and Holcombe (United States, 136 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Grand Meadow | United States | 230 km (143 mi) | 6.4 C (43.4 F) | 823.9 mm (32.4 in) | 0.69 |
| Cresco 1 NE | United States | 269 km (167 mi) | 6.7 C (44.0 F) | 872.4 mm (34.3 in) | 0.73 |
| Holcombe | United States | 136 km (85 mi) | 6.4 C (43.5 F) | 817.3 mm (32.2 in) | 0.76 |
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).