Weather on March 21
Madison, WI
55 Years of Data
Avg High
47°F
Avg Low
25°F
Warmest
2012
67°F avg
Coldest
2013
14°F avg
About This Date
March 21st in Madison, WI typically brings chilly spring weather, with average highs around 47°F and lows near 25°F. Over 56 years of records, the warmest March 21st was in 2012 (67°F average), while the coldest was 2013 (14°F) — a 53°F range across recorded history. Precipitation has occurred on 25% of recorded March 21st dates, with snow falling 5% of the time (heaviest snowfall: 6"). The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for March 21st in Madison, WI? Bring layers as temperatures can vary throughout the day.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 65° | 36° | 50° | — | — |
| 2025 | 44° | 26° | 35° | — | — |
| 2024 | 38° | 22° | 30° | — | — |
| 2023 | 49° | 27° | 38° | — | — |
| 2022 | 63° | 33° | 48° | — | — |
| 2021 | 58° | 24° | 41° | — | — |
| 2020 | — | 20° | — | — | — |
| 2019 | 48° | 35° | 42° | — | — |
| 2018 | 38° | 23° | 30° | — | — |
| 2017 | 63° | 31° | 47° | — | — |
| 2016 | 47° | 23° | 35° | — | — |
| 2015 | 58° | 33° | 45° | — | — |
| 2014 | 45° | 19° | 32° | — | — |
| 2013coldest | 22° | 7° | 14° | — | — |
| 2012warmest | 81° | 54° | 67° | — | — |
| 2011 | 44° | 38° | 41° | 1.27" | — |
| 2010 | 38° | 26° | 32° | — | — |
| 2009 | 40° | 17° | 28° | 0.08" | — |
| 2008 | 45° | 23° | 34° | 0.3" | 1.5" |
| 2007 | 44° | 24° | 34° | 0.3" | — |
| 2006 | 38° | 24° | 31° | — | — |
| 2005 | 40° | 17° | 28° | — | — |
| 2004 | 57° | 23° | 40° | — | — |
| 2003 | 50° | 35° | 43° | 0.18" | — |
| 2002 | 48° | 12° | 30° | 0.15" | 1" |
| 2001 | 51° | 25° | 38° | — | — |
| 2000 | 43° | 33° | 38° | 0.13" | — |
| 1999 | 57° | 32° | 45° | — | — |
| 1998 | 36° | 24° | 30° | — | — |
| 1997 | 58° | 31° | 44° | — | — |
| 1996 | 40° | 15° | 27° | — | — |
| 1995 | 43° | 31° | 37° | 0.76" | — |
| 1994 | 62° | 36° | 49° | 0.69" | — |
| 1993 | 38° | 28° | 33° | — | — |
| 1992 | 45° | 17° | 31° | — | — |
| 1991 | 60° | 32° | 46° | — | — |
| 1990 | 50° | 23° | 37° | — | — |
| 1989 | 36° | 8° | 22° | — | — |
| 1988 | 26° | 15° | 21° | — | — |
| 1987 | 60° | 22° | 41° | — | — |
| 1986 | 25° | 5° | 15° | — | — |
| 1985 | 49° | 16° | 32° | — | — |
| 1984 | 34° | 30° | 32° | 0.43" | — |
| 1983 | 28° | 19° | 24° | 4.09" | 6" |
| 1982 | 38° | 28° | 33° | 0.05" | — |
| 1981 | 47° | 12° | 29° | — | — |
| 1980 | 50° | 27° | 38° | — | — |
| 1979 | 49° | 27° | 38° | — | — |
| 1978 | 47° | 22° | 34° | — | — |
| 1977 | 47° | 20° | 33° | — | — |
| 1976 | 66° | 22° | 44° | — | — |
| 1975 | 49° | 36° | 42° | 0.79" | — |
| 1974 | 32° | 14° | 23° | 0.2" | — |
| 1973 | 41° | 24° | 33° | — | — |
| 1972 | 61° | 33° | 47° | — | — |
| 1971 | 39° | 23° | 31° | — | — |
56 years of data from UW ARBORETUM - MADISON