Brillion Weather Records (USC00471064)
Record envelope, standing records and threshold days for Brillion (USC00471064), Wisconsin, United States, with 103 years of record.
Key Facts for Brillion
- Brillion (USC00471064) is a weather station in Wisconsin, United States at 44.16 latitude and -88.08 longitude, 247 m (810 ft) above sea level.
- The station reports from 1924 to 2026, 103 years of record.
- 1,464 records set at Brillion still stand.
- Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Brillion set a daily record precipitation of 54.1 mm (2.1 in) on 15 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Wisconsin, United States, 44.16 latitude, -88.08 longitude.
- Elevation: 247 m (810 ft).
- Period of record: 1924 to 2026, 103 years.
- Eligible elements: prcp, snow, snwd.
Daily Record Envelope and 2026
22 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 11.7 C (53.1 F) | -32.2 C (-26.0 F) | 9.4 C (48.9 F) | -27.8 C (-18.0 F) |
| Feb | 20.6 C (69.1 F) | -31.1 C (-24.0 F) | 12.8 C (55.0 F) | -19.4 C (-2.9 F) |
| Mar | 27.8 C (82.0 F) | -26.7 C (-16.1 F) | 20.6 C (69.1 F) | -16.7 C (1.9 F) |
| Apr | 29.4 C (84.9 F) | -11.1 C (12.0 F) | 26.1 C (79.0 F) | -7.2 C (19.0 F) |
| May | 35.0 C (95.0 F) | -4.4 C (24.1 F) | 32.8 C (91.0 F) | -2.8 C (27.0 F) |
| Jun | 35.6 C (96.1 F) | 1.7 C (35.1 F) | 32.2 C (90.0 F) | 7.2 C (45.0 F) |
| Jul | 36.7 C (98.1 F) | 5.0 C (41.0 F) | 35.0 C (95.0 F) | 7.8 C (46.0 F) |
| Aug | 36.1 C (97.0 F) | 2.2 C (36.0 F) | 30.0 C (86.0 F) | 12.2 C (54.0 F) |
| Sep | 33.9 C (93.0 F) | -2.2 C (28.0 F) | 31.7 C (89.1 F) | 3.9 C (39.0 F) |
| Oct | 31.1 C (88.0 F) | -6.7 C (19.9 F) | 19.4 C (66.9 F) | 5.0 C (41.0 F) |
| Nov | 23.9 C (75.0 F) | -17.2 C (1.0 F) | n/a | n/a |
| Dec | 18.3 C (64.9 F) | -28.9 C (-20.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1968 | 13 |
| 1998 | 55 |
| 1999 | 57 |
| 2000 | 56 |
| 2001 | 55 |
| 2002 | 58 |
| 2003 | 49 |
| 2004 | 56 |
| 2005 | 52 |
| 2006 | 47 |
| 2007 | 74 |
| 2008 | 43 |
| 2009 | 53 |
| 2010 | 42 |
| 2011 | 37 |
| 2012 | 68 |
| 2013 | 64 |
| 2014 | 66 |
| 2015 | 59 |
| 2016 | 30 |
| 2017 | 53 |
| 2018 | 48 |
| 2019 | 42 |
| 2020 | 39 |
| 2021 | 54 |
| 2022 | 37 |
| 2023 | 56 |
| 2024 | 33 |
| 2025 | 41 |
| 2026 | 27 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1975-08-29 | Record daily precipitation | Record daily precipitation 104.9 mm (4.1 in) |
| 1990-06-22 | Record daily precipitation | Record daily precipitation 121.4 mm (4.8 in) |
| 1999-01-02 | Record daily snowfall | Record daily snowfall 38.1 cm (15.0 in) |
| 2020-10-23 | Record daily precipitation | Record daily precipitation 129.5 mm (5.1 in) |
| 2026-03-16 | Record daily snowfall | Record daily snowfall 40.1 cm (15.8 in) |
Wettest Day of Each Month
Oct: 129.5 mm (5.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 30.5 mm (1.2 in) | 25 January 1938 |
| Feb | 45.7 mm (1.8 in) | 8 February 1928 |
| Mar | 53.1 mm (2.1 in) | 30 March 1998 |
| Apr | 64.0 mm (2.5 in) | 13 April 2014 |
| May | 108.0 mm (4.3 in) | 4 May 2018 |
| Jun | 121.4 mm (4.8 in) | 22 June 1990 |
| Jul | 94.0 mm (3.7 in) | 15 July 2021 |
| Aug | 104.9 mm (4.1 in) | 29 August 1975 |
| Sep | 91.4 mm (3.6 in) | 10 September 1986 |
| Oct | 129.5 mm (5.1 in) | 23 October 2020 |
| Nov | 55.9 mm (2.2 in) | 1 November 1985 |
| Dec | 44.5 mm (1.8 in) | 14 December 2015 |
Period of Record Coverage
1968 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1968 | 25 | 7% | No |
| 1998 | 361 | 99% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 360 | 99% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 364 | 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 | 249 | 68% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 15 September 2026 | Brillion, US | daily rain (Provisional) | 54.1 mm (2.1 in) | 25.1 mm (1.0 in) | 43 years | 46 of 100 (Notable) |
| 4 September 2026 | Brillion, US | all-time rain (Provisional) | 135.9 mm (5.4 in) | 6.4 mm (0.25 in) | 5 years | 37 of 100 (Notable) |
| 14 April 2026 | Brillion, US | daily rain | 43.2 mm (1.7 in) | 2.6 mm (0.10 in) | 8 years | 15 of 100 (Routine) |
| 16 March 2026 | Brillion, US | all-time snowfall | 40.1 cm (15.8 in) | 2.0 cm (0.8 in) | 27 years | 41 of 100 (Notable) |
| 15 March 2026 | Brillion, US | daily snowfall (Tie) | 17.8 cm (7.0 in) | tie | 89 years | 9 of 100 (Routine) |
| 7 March 2026 | Brillion, US | daily rain | 24.1 mm (0.9 in) | 2.5 mm (0.10 in) | 52 years | 20 of 100 (Routine) |
| 10 December 2025 | Brillion, US | daily snowfall | 14.5 cm (5.7 in) | 4.3 cm (1.7 in) | 12 years | 22 of 100 (Routine) |
| 30 November 2025 | Brillion, US | daily snowfall | 12.7 cm (5.0 in) | 1.3 cm (0.5 in) | 40 years | 25 of 100 (Routine) |
| 17 July 2025 | Brillion, US | daily rain | 47.2 mm (1.9 in) | 1.0 mm (0.04 in) | 16 years | 15 of 100 (Routine) |
| 6 July 2025 | Brillion, US | daily rain | 47.2 mm (1.9 in) | 5.5 mm (0.22 in) | 50 years | 29 of 100 (Routine) |
| 9 February 2025 | Brillion, US | daily snowfall | 12.7 cm (5.0 in) | 2.5 cm (1.0 in) | 96 years | 43 of 100 (Notable) |
| 19 November 2024 | Brillion, US | daily rain | 22.9 mm (0.9 in) | 3.6 mm (0.14 in) | 76 years | 20 of 100 (Routine) |
| 31 October 2024 | Brillion, US | daily rain | 51.6 mm (2.0 in) | 4.6 mm (0.18 in) | 40 years | 26 of 100 (Routine) |
| 3 July 2024 | Brillion, US | daily rain | 49.5 mm (1.9 in) | 16.0 mm (0.6 in) | 30 years | 32 of 100 (Routine) |
| 25 June 2024 | Brillion, US | daily rain | 29.2 mm (1.1 in) | 3.3 mm (0.13 in) | 66 years | 31 of 100 (Routine) |
| 4 June 2024 | Brillion, US | daily rain | 33.3 mm (1.3 in) | 4.6 mm (0.18 in) | 17 years | 18 of 100 (Routine) |
| 29 May 2024 | Brillion, US | daily rain | 38.6 mm (1.5 in) | 4.3 mm (0.17 in) | 82 years | 38 of 100 (Notable) |
| 27 May 2024 | Brillion, US | daily rain | 55.9 mm (2.2 in) | 14.2 mm (0.6 in) | 83 years | 47 of 100 (Notable) |
| 8 May 2024 | Brillion, US | daily rain | 24.1 mm (0.9 in) | 5.6 mm (0.22 in) | 29 years | 20 of 100 (Routine) |
| 3 April 2024 | Brillion, US | daily snowfall | 7.6 cm (3.0 in) | 5.1 cm (2.0 in) | 28 years | 28 of 100 (Routine) |
Climate Trend
28 complete years, 1998 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1998 | 8.7 C | +1.27 C |
| 1999 | 7.7 C | +0.29 C |
| 2000 | 7.0 C | -0.39 C |
| 2001 | 8.0 C | +0.59 C |
| 2002 | 7.6 C | +0.19 C |
| 2003 | 6.4 C | -1.00 C |
| 2004 | 6.8 C | -0.62 C |
| 2005 | 7.5 C | +0.04 C |
| 2006 | 8.0 C | +0.57 C |
| 2007 | 7.3 C | -0.15 C |
| 2008 | 5.9 C | -1.55 C |
| 2009 | 6.1 C | -1.27 C |
| 2010 | 7.9 C | +0.44 C |
| 2011 | 6.7 C | -0.67 C |
| 2012 | 9.0 C | +1.62 C |
| 2013 | 6.1 C | -1.36 C |
| 2014 | 5.3 C | -2.12 C |
| 2015 | 7.5 C | +0.13 C |
| 2016 | 8.4 C | +0.94 C |
| 2017 | 8.1 C | +0.67 C |
| 2018 | 7.2 C | -0.21 C |
| 2019 | 6.7 C | -0.68 C |
| 2020 | 7.8 C | +0.41 C |
| 2021 | 8.2 C | +0.79 C |
| 2022 | 6.8 C | -0.61 C |
| 2023 | 8.4 C | +0.99 C |
| 2024 | 9.1 C | +1.65 C |
| 2025 | 7.4 C | -0.02 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1924 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 36.7 C (98.1 F) | 1999 | 34.2 C (93.5 F) | 30 |
| Coldest night (TNn) | -32.2 C (-26.0 F) | 2019 | -25.6 C (-14.1 F) | 30 |
| Wettest day (Rx1day) | 135.9 mm (5.4 in) | 2026 | 49.0 mm (1.9 in) | 98 |
| Wettest five days (Rx5day) | 175.8 mm (6.9 in) | 2003 | 73.2 mm (2.9 in) | 98 |
| Longest dry spell (CDD) | 50 days | 1969 | 20 days | 98 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | 2.2 C (36.0 F) |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | n/a |
| 1976 | n/a |
| 1977 | n/a |
| 1978 | n/a |
| 1979 | n/a |
| 1980 | n/a |
| 1981 | n/a |
| 1982 | n/a |
| 1983 | n/a |
| 1984 | n/a |
| 1985 | n/a |
| 1986 | n/a |
| 1987 | n/a |
| 1988 | n/a |
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | 33.3 C (91.9 F) |
| 1999 | 36.7 C (98.1 F) |
| 2000 | 32.8 C (91.0 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 32.8 C (91.0 F) |
| 2004 | 31.7 C (89.1 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 35.6 C (96.1 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 32.8 C (91.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 36.7 C (98.1 F) |
| 2013 | 33.9 C (93.0 F) |
| 2014 | 32.8 C (91.0 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 32.8 C (91.0 F) |
| 2018 | 35.6 C (96.1 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 33.3 C (91.9 F) |
| 2021 | 34.4 C (93.9 F) |
| 2022 | 33.3 C (91.9 F) |
| 2023 | 35.6 C (96.1 F) |
| 2024 | 32.8 C (91.0 F) |
| 2025 | 35.0 C (95.0 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | n/a |
| 1962 | n/a |
| 1963 | n/a |
| 1964 | n/a |
| 1965 | n/a |
| 1966 | n/a |
| 1967 | n/a |
| 1968 | -27.2 C (-17.0 F) |
| 1969 | n/a |
| 1970 | n/a |
| 1971 | n/a |
| 1972 | n/a |
| 1973 | n/a |
| 1974 | n/a |
| 1975 | n/a |
| 1976 | n/a |
| 1977 | n/a |
| 1978 | n/a |
| 1979 | n/a |
| 1980 | n/a |
| 1981 | n/a |
| 1982 | n/a |
| 1983 | n/a |
| 1984 | n/a |
| 1985 | n/a |
| 1986 | n/a |
| 1987 | n/a |
| 1988 | n/a |
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | -23.9 C (-11.0 F) |
| 1999 | -27.2 C (-17.0 F) |
| 2000 | -28.9 C (-20.0 F) |
| 2001 | -21.7 C (-7.1 F) |
| 2002 | -23.3 C (-9.9 F) |
| 2003 | -25.6 C (-14.1 F) |
| 2004 | -26.1 C (-15.0 F) |
| 2005 | -24.4 C (-11.9 F) |
| 2006 | -27.2 C (-17.0 F) |
| 2007 | -26.1 C (-15.0 F) |
| 2008 | -28.3 C (-18.9 F) |
| 2009 | -27.8 C (-18.0 F) |
| 2010 | -24.4 C (-11.9 F) |
| 2011 | -27.2 C (-17.0 F) |
| 2012 | -23.9 C (-11.0 F) |
| 2013 | -24.4 C (-11.9 F) |
| 2014 | -28.3 C (-18.9 F) |
| 2015 | -25.6 C (-14.1 F) |
| 2016 | -23.9 C (-11.0 F) |
| 2017 | -23.3 C (-9.9 F) |
| 2018 | -23.9 C (-11.0 F) |
| 2019 | -32.2 C (-26.0 F) |
| 2020 | -25.0 C (-13.0 F) |
| 2021 | -25.6 C (-14.1 F) |
| 2022 | -26.1 C (-15.0 F) |
| 2023 | -22.8 C (-9.0 F) |
| 2024 | -21.1 C (-6.0 F) |
| 2025 | -25.0 C (-13.0 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1924 | 25.7 mm (1.0 in) |
| 1925 | 78.2 mm (3.1 in) |
| 1926 | 76.2 mm (3.0 in) |
| 1927 | 27.9 mm (1.1 in) |
| 1928 | 45.7 mm (1.8 in) |
| 1929 | 35.8 mm (1.4 in) |
| 1935 | 46.7 mm (1.8 in) |
| 1936 | 37.1 mm (1.5 in) |
| 1937 | 46.7 mm (1.8 in) |
| 1938 | 55.4 mm (2.2 in) |
| 1939 | 63.0 mm (2.5 in) |
| 1940 | 50.8 mm (2.0 in) |
| 1941 | 59.9 mm (2.4 in) |
| 1942 | 81.3 mm (3.2 in) |
| 1943 | 34.3 mm (1.4 in) |
| 1944 | 36.1 mm (1.4 in) |
| 1945 | 43.2 mm (1.7 in) |
| 1946 | 66.8 mm (2.6 in) |
| 1947 | 39.4 mm (1.6 in) |
| 1948 | 32.0 mm (1.3 in) |
| 1949 | 26.7 mm (1.1 in) |
| 1950 | 51.6 mm (2.0 in) |
| 1951 | 50.8 mm (2.0 in) |
| 1952 | 49.5 mm (1.9 in) |
| 1953 | 39.6 mm (1.6 in) |
| 1954 | 50.8 mm (2.0 in) |
| 1955 | 27.7 mm (1.1 in) |
| 1956 | 35.6 mm (1.4 in) |
| 1957 | 61.0 mm (2.4 in) |
| 1958 | 44.5 mm (1.8 in) |
| 1959 | 38.9 mm (1.5 in) |
| 1960 | 42.9 mm (1.7 in) |
| 1961 | 72.4 mm (2.9 in) |
| 1962 | 52.6 mm (2.1 in) |
| 1963 | 52.8 mm (2.1 in) |
| 1964 | 34.0 mm (1.3 in) |
| 1965 | 43.2 mm (1.7 in) |
| 1966 | 67.1 mm (2.6 in) |
| 1967 | 50.8 mm (2.0 in) |
| 1968 | 50.8 mm (2.0 in) |
| 1969 | 50.0 mm (2.0 in) |
| 1970 | 47.5 mm (1.9 in) |
| 1971 | 48.5 mm (1.9 in) |
| 1972 | 37.3 mm (1.5 in) |
| 1973 | 45.7 mm (1.8 in) |
| 1974 | 25.4 mm (1.0 in) |
| 1975 | 104.9 mm (4.1 in) |
| 1976 | 34.3 mm (1.4 in) |
| 1977 | 35.1 mm (1.4 in) |
| 1978 | 37.3 mm (1.5 in) |
| 1979 | 35.6 mm (1.4 in) |
| 1980 | 47.0 mm (1.9 in) |
| 1981 | 59.9 mm (2.4 in) |
| 1982 | 55.4 mm (2.2 in) |
| 1983 | 39.6 mm (1.6 in) |
| 1984 | 66.5 mm (2.6 in) |
| 1985 | 88.4 mm (3.5 in) |
| 1986 | 91.4 mm (3.6 in) |
| 1987 | 38.4 mm (1.5 in) |
| 1988 | 37.3 mm (1.5 in) |
| 1989 | 55.1 mm (2.2 in) |
| 1990 | 121.4 mm (4.8 in) |
| 1991 | 47.2 mm (1.9 in) |
| 1992 | 34.3 mm (1.4 in) |
| 1993 | 101.9 mm (4.0 in) |
| 1994 | 56.9 mm (2.2 in) |
| 1995 | 62.0 mm (2.4 in) |
| 1996 | 53.3 mm (2.1 in) |
| 1997 | 29.0 mm (1.1 in) |
| 1998 | 53.1 mm (2.1 in) |
| 1999 | 48.0 mm (1.9 in) |
| 2000 | 42.9 mm (1.7 in) |
| 2001 | 49.5 mm (1.9 in) |
| 2002 | 27.4 mm (1.1 in) |
| 2003 | 50.3 mm (2.0 in) |
| 2004 | 37.1 mm (1.5 in) |
| 2005 | 66.0 mm (2.6 in) |
| 2006 | 49.5 mm (1.9 in) |
| 2007 | 38.1 mm (1.5 in) |
| 2008 | 91.4 mm (3.6 in) |
| 2009 | 66.3 mm (2.6 in) |
| 2010 | 56.1 mm (2.2 in) |
| 2011 | 41.1 mm (1.6 in) |
| 2012 | 97.8 mm (3.9 in) |
| 2013 | 47.0 mm (1.9 in) |
| 2014 | 64.0 mm (2.5 in) |
| 2015 | 44.7 mm (1.8 in) |
| 2016 | 50.8 mm (2.0 in) |
| 2017 | 44.5 mm (1.8 in) |
| 2018 | 108.0 mm (4.3 in) |
| 2019 | 59.7 mm (2.4 in) |
| 2020 | 129.5 mm (5.1 in) |
| 2021 | 94.0 mm (3.7 in) |
| 2022 | 47.8 mm (1.9 in) |
| 2023 | 39.4 mm (1.6 in) |
| 2024 | 91.4 mm (3.6 in) |
| 2025 | 47.2 mm (1.9 in) |
| 2026 | 135.9 mm (5.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1924 | 29.5 mm (1.2 in) |
| 1925 | 95.0 mm (3.7 in) |
| 1926 | 78.8 mm (3.1 in) |
| 1927 | 97.3 mm (3.8 in) |
| 1928 | 67.2 mm (2.6 in) |
| 1929 | 43.7 mm (1.7 in) |
| 1935 | 65.0 mm (2.6 in) |
| 1936 | 55.7 mm (2.2 in) |
| 1937 | 84.8 mm (3.3 in) |
| 1938 | 112.0 mm (4.4 in) |
| 1939 | 74.2 mm (2.9 in) |
| 1940 | 130.8 mm (5.1 in) |
| 1941 | 98.9 mm (3.9 in) |
| 1942 | 100.4 mm (4.0 in) |
| 1943 | 44.5 mm (1.8 in) |
| 1944 | 73.4 mm (2.9 in) |
| 1945 | 76.2 mm (3.0 in) |
| 1946 | 66.8 mm (2.6 in) |
| 1947 | 95.3 mm (3.8 in) |
| 1948 | 60.2 mm (2.4 in) |
| 1949 | 56.1 mm (2.2 in) |
| 1950 | 64.3 mm (2.5 in) |
| 1951 | 96.6 mm (3.8 in) |
| 1952 | 85.6 mm (3.4 in) |
| 1953 | 45.2 mm (1.8 in) |
| 1954 | 105.9 mm (4.2 in) |
| 1955 | 41.7 mm (1.6 in) |
| 1956 | 42.4 mm (1.7 in) |
| 1957 | 63.0 mm (2.5 in) |
| 1958 | 54.6 mm (2.1 in) |
| 1959 | 57.2 mm (2.3 in) |
| 1960 | 80.5 mm (3.2 in) |
| 1961 | 98.1 mm (3.9 in) |
| 1962 | 71.9 mm (2.8 in) |
| 1963 | 76.5 mm (3.0 in) |
| 1964 | 65.8 mm (2.6 in) |
| 1965 | 72.4 mm (2.9 in) |
| 1966 | 71.7 mm (2.8 in) |
| 1967 | 85.7 mm (3.4 in) |
| 1968 | 64.1 mm (2.5 in) |
| 1969 | 101.1 mm (4.0 in) |
| 1970 | 92.2 mm (3.6 in) |
| 1971 | 56.4 mm (2.2 in) |
| 1972 | 65.0 mm (2.6 in) |
| 1973 | 69.4 mm (2.7 in) |
| 1974 | 43.0 mm (1.7 in) |
| 1975 | 113.0 mm (4.4 in) |
| 1976 | 62.0 mm (2.4 in) |
| 1977 | 57.3 mm (2.3 in) |
| 1978 | 84.8 mm (3.3 in) |
| 1979 | 44.9 mm (1.8 in) |
| 1980 | 67.8 mm (2.7 in) |
| 1981 | 77.3 mm (3.0 in) |
| 1982 | 73.9 mm (2.9 in) |
| 1983 | 71.9 mm (2.8 in) |
| 1984 | 90.8 mm (3.6 in) |
| 1985 | 134.4 mm (5.3 in) |
| 1986 | 131.0 mm (5.2 in) |
| 1987 | 56.6 mm (2.2 in) |
| 1988 | 68.3 mm (2.7 in) |
| 1989 | 55.6 mm (2.2 in) |
| 1990 | 124.2 mm (4.9 in) |
| 1991 | 57.1 mm (2.2 in) |
| 1992 | 116.2 mm (4.6 in) |
| 1993 | 127.0 mm (5.0 in) |
| 1994 | 92.9 mm (3.7 in) |
| 1995 | 87.4 mm (3.4 in) |
| 1996 | 70.0 mm (2.8 in) |
| 1997 | 58.6 mm (2.3 in) |
| 1998 | 91.9 mm (3.6 in) |
| 1999 | 72.1 mm (2.8 in) |
| 2000 | 66.3 mm (2.6 in) |
| 2001 | 65.8 mm (2.6 in) |
| 2002 | 39.8 mm (1.6 in) |
| 2003 | 175.8 mm (6.9 in) |
| 2004 | 87.0 mm (3.4 in) |
| 2005 | 72.9 mm (2.9 in) |
| 2006 | 72.5 mm (2.9 in) |
| 2007 | 70.0 mm (2.8 in) |
| 2008 | 167.9 mm (6.6 in) |
| 2009 | 91.2 mm (3.6 in) |
| 2010 | 114.1 mm (4.5 in) |
| 2011 | 97.3 mm (3.8 in) |
| 2012 | 140.0 mm (5.5 in) |
| 2013 | 67.1 mm (2.6 in) |
| 2014 | 100.4 mm (4.0 in) |
| 2015 | 66.8 mm (2.6 in) |
| 2016 | 62.5 mm (2.5 in) |
| 2017 | 71.5 mm (2.8 in) |
| 2018 | 148.6 mm (5.9 in) |
| 2019 | 94.3 mm (3.7 in) |
| 2020 | 136.1 mm (5.4 in) |
| 2021 | 126.8 mm (5.0 in) |
| 2022 | 56.4 mm (2.2 in) |
| 2023 | 61.4 mm (2.4 in) |
| 2024 | 135.4 mm (5.3 in) |
| 2025 | 73.8 mm (2.9 in) |
| 2026 | 149.9 mm (5.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1924 | 46 days |
| 1925 | 31 days |
| 1926 | 13 days |
| 1927 | 16 days |
| 1928 | 14 days |
| 1929 | 14 days |
| 1935 | 13 days |
| 1936 | 23 days |
| 1937 | 19 days |
| 1938 | 25 days |
| 1939 | 16 days |
| 1940 | 25 days |
| 1941 | 18 days |
| 1942 | 17 days |
| 1943 | 25 days |
| 1944 | 24 days |
| 1945 | 16 days |
| 1946 | 20 days |
| 1947 | 27 days |
| 1948 | 19 days |
| 1949 | 20 days |
| 1950 | 31 days |
| 1951 | 16 days |
| 1952 | 23 days |
| 1953 | 32 days |
| 1954 | 21 days |
| 1955 | 27 days |
| 1956 | 23 days |
| 1957 | 25 days |
| 1958 | 29 days |
| 1959 | 16 days |
| 1960 | 21 days |
| 1961 | 20 days |
| 1962 | 16 days |
| 1963 | 22 days |
| 1964 | 23 days |
| 1965 | 20 days |
| 1966 | 19 days |
| 1967 | 22 days |
| 1968 | 30 days |
| 1969 | 50 days |
| 1970 | 26 days |
| 1971 | 14 days |
| 1972 | 21 days |
| 1973 | 17 days |
| 1974 | 17 days |
| 1975 | 19 days |
| 1976 | 35 days |
| 1977 | 25 days |
| 1978 | 30 days |
| 1979 | 18 days |
| 1980 | 17 days |
| 1981 | 22 days |
| 1982 | 32 days |
| 1983 | 13 days |
| 1984 | 21 days |
| 1985 | 15 days |
| 1986 | 23 days |
| 1987 | 22 days |
| 1988 | 37 days |
| 1989 | 22 days |
| 1990 | 17 days |
| 1991 | 32 days |
| 1992 | 20 days |
| 1993 | 23 days |
| 1994 | 14 days |
| 1995 | 18 days |
| 1996 | 18 days |
| 1997 | 18 days |
| 1998 | 15 days |
| 1999 | 36 days |
| 2000 | 20 days |
| 2001 | 18 days |
| 2002 | 28 days |
| 2003 | 36 days |
| 2004 | 12 days |
| 2005 | 17 days |
| 2006 | 23 days |
| 2007 | 43 days |
| 2008 | 20 days |
| 2009 | 21 days |
| 2010 | 24 days |
| 2011 | 18 days |
| 2012 | 19 days |
| 2013 | 17 days |
| 2014 | 20 days |
| 2015 | 20 days |
| 2016 | 24 days |
| 2017 | 12 days |
| 2018 | 20 days |
| 2019 | 17 days |
| 2020 | 20 days |
| 2021 | 16 days |
| 2022 | 17 days |
| 2023 | 22 days |
| 2024 | 19 days |
| 2025 | 20 days |
| 2026 | 17 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
28 years with a frostAcross 28 years with a frost, the median last spring frost at Brillion falls on 8 May and the median first autumn frost on 6 October, which leaves a median of 149 days between them.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1998 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 8 May | n/a | 8 May | n/a | +2.5 days per decade |
| First autumn frost | 6 October | n/a | 6 October | n/a | +5.7 days per decade |
| Growing days | 149 days | n/a | 149 days | n/a | +3.2 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
83 years, 1928 to 2025A day with at least 48.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 144.9 mm (5.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 48.4 mm (1.9 in) | |
| 5 years | 65.6 mm (2.6 in) | |
| 10 years | 79.8 mm (3.1 in) | |
| 25 years | 101.8 mm (4.0 in) | |
| 50 years | 121.7 mm (4.8 in) | |
| 100 years | 144.9 mm (5.7 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 1928 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: 129.5 mm (5.1 in) in 2020; 121.4 mm (4.8 in) in 1990; 108.0 mm (4.3 in) in 2018.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).