Weather on March 31
Chicago, IL
55 Years of Data
Avg High
55°F
Avg Low
38°F
Warmest
1986
64°F avg
Coldest
1987
30°F avg
About This Date
March 31st in Chicago, IL typically brings cool spring weather, with average highs around 55°F and lows near 38°F. Over 53 years of records, the warmest March 31st was in 1986 (64°F average), while the coldest was 1987 (30°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 17% of March 31st dates historically, with the wettest March 31st recording 2.11" of rain. The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.1°F cooler on this date compared to 20-30 years ago.
Planning for March 31st in Chicago, IL? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 68° | 38° | 53° | — | — |
| 2025 | 43° | 35° | 39° | — | — |
| 2024 | 44° | 38° | 41° | — | — |
| 2023 | 69° | 50° | 60° | — | — |
| 2022 | 49° | 33° | 41° | — | — |
| 2021 | 45° | 34° | 39° | — | — |
| 2020 | 42° | 36° | 39° | — | — |
| 2019 | 36° | 26° | 31° | — | — |
| 2018 | 57° | 34° | 45° | — | — |
| 2017 | 40° | 36° | 38° | — | — |
| 2016 | 68° | 40° | 54° | — | — |
| 2015 | 56° | 37° | 46° | — | — |
| 2014 | 64° | 43° | 53° | — | — |
| 2013 | 57° | 38° | 47° | — | — |
| 2012 | 51° | 40° | 45° | — | — |
| 2011 | 42° | 34° | 38° | — | — |
| 2010 | 76° | 53° | 64° | — | — |
| 2009 | 52° | 41° | 46° | — | — |
| 2008 | 61° | 37° | 49° | — | — |
| 2007 | 58° | 42° | 50° | — | — |
| 2006 | 71° | 48° | 60° | — | — |
| 2005 | 58° | 43° | 50° | — | — |
| 2004 | 47° | 37° | 42° | — | — |
| 2003 | 56° | 28° | 42° | 0.15" | — |
| 2002 | 50° | 32° | 41° | — | — |
| 2001 | 56° | 37° | 46° | 0.18" | — |
| 2000 | 63° | 32° | 47° | — | — |
| 1999 | 73° | 50° | 62° | — | — |
| 1998 | 71° | 49° | 60° | — | — |
| 1994 | 48° | 31° | 39° | — | — |
| 1993 | 57° | 42° | 50° | 2.08" | — |
| 1992 | 53° | 36° | 44° | — | — |
| 1991 | 53° | 35° | 44° | 0.05" | — |
| 1990 | 41° | 37° | 39° | — | — |
| 1989 | 43° | 35° | 39° | — | — |
| 1988 | 45° | 35° | 40° | — | — |
| 1987coldest | 38° | 23° | 30° | — | — |
| 1986warmest | 81° | 47° | 64° | — | — |
| 1985 | 51° | 36° | 43° | 0.71" | — |
| 1984 | 45° | 33° | 39° | — | — |
| 1983 | 46° | 37° | 42° | — | — |
| 1982 | 62° | 46° | 54° | 2.11" | — |
| 1981 | 80° | 44° | 62° | — | — |
| 1980 | 41° | 34° | 37° | 0.53" | — |
| 1979 | 65° | 36° | 50° | 0.89" | — |
| 1978 | 76° | 45° | 60° | — | — |
| 1977 | 63° | 40° | 51° | 0.03" | — |
| 1976 | 45° | 37° | 41° | — | — |
| 1975 | 57° | — | — | — | — |
| 1974 | 40° | 37° | 38° | — | — |
| 1973 | 47° | 37° | 42° | — | — |
| 1972 | 37° | 33° | 35° | — | — |
| 1971 | 73° | 41° | 57° | — | — |
53 years of data from CHICAGO GRANT PARK