Weather on April 20
Madison, WI
55 Years of Data
Avg High
60°F
Avg Low
38°F
Warmest
1985
73°F avg
Coldest
2011
32°F avg
About This Date
April 20th in Madison, WI typically brings mild spring weather, with average highs around 60°F and lows near 38°F. Over 55 years of records, the warmest April 20th was in 1985 (73°F average), while the coldest was 2011 (32°F) — a 41°F range across recorded history. Precipitation has occurred on 38% of recorded April 20th dates, with snow falling 4% of the time (heaviest snowfall: 1.3"). The last decade has been 9.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 9.0°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Madison, WI? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 61° | 35° | 48° | — | — |
| 2024 | 55° | 30° | 43° | — | — |
| 2023 | 49° | 38° | 43° | 0.08" | — |
| 2022 | 52° | 34° | 43° | — | — |
| 2021 | 46° | 29° | 37° | — | — |
| 2020 | 60° | 30° | 45° | — | — |
| 2019 | 62° | 29° | 45° | — | — |
| 2018 | 50° | 22° | 36° | — | — |
| 2017 | 61° | 41° | 51° | 1.37" | — |
| 2016 | 54° | 41° | 47° | 0.84" | — |
| 2015 | 75° | 45° | 60° | 1.42" | — |
| 2014 | 67° | 35° | 51° | — | — |
| 2013 | 41° | 25° | 33° | — | — |
| 2012 | 53° | 36° | 44° | 2.54" | — |
| 2011coldest | 34° | 31° | 32° | 2.84" | 1.3" |
| 2010 | 62° | 34° | 48° | — | — |
| 2009 | 52° | 39° | 45° | 1.93" | — |
| 2008 | 67° | 47° | 57° | — | — |
| 2007 | 63° | 33° | 48° | — | — |
| 2006 | 68° | 39° | 54° | — | — |
| 2005 | 79° | 58° | 68° | 0.51" | — |
| 2004 | 61° | 36° | 48° | — | — |
| 2003 | 70° | 53° | 61° | 0.94" | — |
| 2002 | 61° | 57° | 59° | — | — |
| 2001 | 64° | 42° | 53° | 1.4" | — |
| 2000 | 58° | 45° | 51° | 4.09" | — |
| 1999 | 55° | 29° | 42° | — | — |
| 1998 | 63° | 29° | 46° | — | — |
| 1997 | 50° | 32° | 41° | — | — |
| 1996 | 69° | 49° | 59° | 1.37" | — |
| 1995 | 56° | 35° | 45° | — | — |
| 1994 | 67° | 28° | 47° | — | — |
| 1993 | 50° | 32° | 41° | 3.48" | 0.7" |
| 1992 | 68° | 39° | 54° | 2.31" | — |
| 1991 | 52° | 30° | 41° | — | — |
| 1990 | 55° | 40° | 47° | 1.17" | — |
| 1989 | 64° | 41° | 53° | — | — |
| 1988 | 54° | 32° | 43° | — | — |
| 1987 | 80° | 58° | 69° | — | — |
| 1986 | 62° | 39° | 51° | — | — |
| 1985warmest | 86° | 60° | 73° | — | — |
| 1984 | 45° | 30° | 37° | — | — |
| 1983 | 50° | 22° | 36° | — | — |
| 1982 | 61° | 35° | 48° | 0.28" | — |
| 1981 | 55° | 29° | 42° | — | — |
| 1980 | 76° | 37° | 56° | — | — |
| 1979 | 64° | 46° | 55° | 0.05" | — |
| 1978 | 45° | 35° | 40° | 0.15" | — |
| 1977 | 75° | 57° | 66° | 0.79" | — |
| 1976 | 61° | 34° | 47° | — | — |
| 1975 | 46° | 36° | 41° | — | — |
| 1974 | 57° | 35° | 46° | — | — |
| 1973 | 64° | 57° | 61° | 0.05" | — |
| 1972 | 46° | 37° | 42° | 0.03" | — |
| 1971 | 73° | 49° | 61° | — | — |
55 years of data from UW ARBORETUM - MADISON