Uw Arboretum - Madison Threshold Days by Year (USC00470273)
18 fixed thresholds counted per year at Uw Arboretum - Madison (USC00470273): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Uw Arboretum - Madison Thresholds
- Uw Arboretum - Madison: days with a maximum temperature at or above 30 C (86 F) in 54 years, most in 1988 with 72.
- Uw Arboretum - Madison: days with a maximum temperature at or below 0 C (32 F) in 54 years, most in 1978 with 84.
- Uw Arboretum - Madison: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 2018 with 50.
- Uw Arboretum - Madison: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 1984 with 17.
- 18 fixed thresholds have at least one qualifying day at Uw Arboretum - Madison.
Days at or above 30 C (86 F)
54 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1972 | 33 | 34.5 |
| 1973 | 31 | 34.5 |
| 1974 | 16 | 34.5 |
| 1975 | 34 | 34.5 |
| 1976 | 46 | 34.5 |
| 1977 | 38 | 34.5 |
| 1978 | 41 | 34.5 |
| 1979 | 37 | 34.5 |
| 1980 | 35 | 35.7 |
| 1981 | 18 | 35.7 |
| 1982 | 16 | 35.7 |
| 1983 | 58 | 35.7 |
| 1984 | 30 | 35.7 |
| 1985 | 27 | 35.7 |
| 1986 | 23 | 35.7 |
| 1987 | 42 | 35.7 |
| 1988 | 72 | 35.7 |
| 1989 | 36 | 35.7 |
| 1990 | 29 | 30.1 |
| 1991 | 60 | 30.1 |
| 1992 | 22 | 30.1 |
| 1993 | 24 | 30.1 |
| 1994 | 26 | 30.1 |
| 1995 | 43 | 30.1 |
| 1996 | 21 | 30.1 |
| 1997 | 15 | 30.1 |
| 1998 | 30 | 30.1 |
| 1999 | 31 | 30.1 |
| 2000 | 13 | 20.4 |
| 2001 | 32 | 20.4 |
| 2002 | 37 | 20.4 |
| 2003 | 27 | 20.4 |
| 2004 | 5 | 20.4 |
| 2006 | 18 | 20.4 |
| 2007 | 31 | 20.4 |
| 2008 | 12 | 20.4 |
| 2009 | 9 | 20.4 |
| 2010 | 23 | 24.5 |
| 2011 | 38 | 24.5 |
| 2012 | 56 | 24.5 |
| 2013 | 24 | 24.5 |
| 2014 | 4 | 24.5 |
| 2015 | 18 | 24.5 |
| 2016 | 18 | 24.5 |
| 2017 | 18 | 24.5 |
| 2018 | 29 | 24.5 |
| 2019 | 17 | 24.5 |
| 2020 | 38 | 32.7 |
| 2021 | 43 | 32.7 |
| 2022 | 31 | 32.7 |
| 2023 | 36 | 32.7 |
| 2024 | 31 | 32.7 |
| 2025 | 27 | 32.7 |
| 2026 | 23 | 32.7 |
| Year | First date | Last date |
|---|---|---|
| 1972 | 1972-05-19 | 1972-08-30 |
| 1973 | 1973-06-09 | 1973-09-03 |
| 1974 | 1974-06-21 | 1974-08-27 |
| 1975 | 1975-05-19 | 1975-10-14 |
| 1976 | 1976-06-07 | 1976-10-02 |
| 1977 | 1977-04-19 | 1977-08-28 |
| 1978 | 1978-05-26 | 1978-09-20 |
| 1979 | 1979-05-09 | 1979-09-13 |
| 1980 | 1980-04-23 | 1980-08-27 |
| 1981 | 1981-06-06 | 1981-08-14 |
| 1982 | 1982-05-15 | 1982-09-12 |
| 1983 | 1983-06-11 | 1983-09-11 |
| 1984 | 1984-06-14 | 1984-09-25 |
| 1985 | 1985-04-20 | 1985-09-08 |
| 1986 | 1986-04-28 | 1986-09-01 |
| 1987 | 1987-04-21 | 1987-08-22 |
| 1988 | 1988-05-22 | 1988-09-19 |
| 1989 | 1989-05-25 | 1989-08-28 |
| 1990 | 1990-04-25 | 1990-09-28 |
| 1991 | 1991-04-08 | 1991-09-10 |
| 1992 | 1992-05-02 | 1992-08-26 |
| 1993 | 1993-05-09 | 1993-08-28 |
| 1994 | 1994-05-22 | 1994-09-16 |
| 1995 | 1995-06-08 | 1995-09-06 |
| 1996 | 1996-05-18 | 1996-09-06 |
| 1997 | 1997-06-23 | 1997-10-08 |
| 1998 | 1998-05-16 | 1998-09-27 |
| 1999 | 1999-05-29 | 1999-09-05 |
| 2000 | 2000-06-09 | 2000-09-19 |
| 2001 | 2001-05-16 | 2001-09-04 |
| 2002 | 2002-04-16 | 2002-09-10 |
| 2003 | 2003-06-19 | 2003-09-09 |
| 2004 | 2004-06-08 | 2004-08-04 |
| 2006 | 2006-05-20 | 2006-08-05 |
| 2007 | 2007-05-15 | 2007-10-08 |
| 2008 | 2008-07-16 | 2008-09-03 |
| 2009 | 2009-04-25 | 2009-08-15 |
| 2010 | 2010-05-24 | 2010-10-10 |
| 2011 | 2011-05-11 | 2011-09-02 |
| 2012 | 2012-05-16 | 2012-09-14 |
| 2013 | 2013-05-01 | 2013-09-20 |
| 2014 | 2014-06-01 | 2014-08-23 |
| 2015 | 2015-06-10 | 2015-09-07 |
| 2016 | 2016-06-11 | 2016-09-07 |
| 2017 | 2017-06-04 | 2017-09-26 |
| 2018 | 2018-05-25 | 2018-09-18 |
| 2019 | 2019-06-28 | 2019-08-06 |
| 2020 | 2020-05-27 | 2020-09-03 |
| 2021 | 2021-05-02 | 2021-10-02 |
| 2022 | 2022-05-11 | 2022-09-03 |
| 2023 | 2023-05-31 | 2023-10-02 |
| 2024 | 2024-05-19 | 2024-09-22 |
| 2025 | 2025-05-13 | 2025-10-05 |
| 2026 | 2026-05-27 | 2026-10-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 54 | 72 | 1988 | 23 |
| 35 C (95 F): Days | 32 | 28 | 1988 | 3 |
| 40 C (104 F): Days | 1 | 4 | 1988 | 4 |
| 90 F (32.2 C): Days | 53 | 49 | 1988 | 10 |
| 100 F (37.8 C): Days | 4 | 9 | 1988 | 4 |
| 0 C (32 F): Ice days (max | 54 | 84 | 1978 | 35 |
| 0 C (32 F): Frost days (min | 50 | 180 | 1979 | 91 |
| -10 C (14 F): Days with min | 50 | 90 | 1978 | 36 |
| -20 C (-4 F): Days with min | 50 | 42 | 1977 | 11 |
| -30 C (-22 F): Days with min | 12 | 8 | 1994 | 3 |
| 20 C (68 F): Tropical nights (min | 48 | 18 | 2010 | 11 |
| 25 C (77 F): Days with min | 8 | 1 | 1995 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 54 | 50 | 2018 | 28 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 54 | 17 | 1984 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 40 | 6 | 1978 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 6 | 2 | 2018 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 28 | 5 | 2000 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 2 | 2023 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.
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). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).