Weather on April 20
Chicago, IL
55 Years of Data
Avg High
61°F
Avg Low
45°F
Warmest
1985
75°F avg
Coldest
2013
37°F avg
About This Date
April 20th in Chicago, IL typically brings mild spring weather, with average highs around 61°F and lows near 45°F. Over 52 years of records, the warmest April 20th was in 1985 (75°F average), while the coldest was 2013 (37°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 31% of April 20th dates historically, with the wettest April 20th recording 3.58" of rain. The last decade has been 5.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.3°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Chicago, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 45° | 49° | — | — |
| 2024 | 45° | 37° | 41° | — | — |
| 2023 | 79° | 49° | 64° | — | — |
| 2022 | 53° | 41° | 47° | — | — |
| 2021 | 42° | 34° | 38° | — | — |
| 2020 | 63° | 40° | 51° | — | — |
| 2019 | 58° | 41° | 49° | — | — |
| 2018 | 46° | 39° | 43° | — | — |
| 2017 | 73° | 46° | 60° | — | — |
| 2016 | 65° | 47° | 56° | — | — |
| 2015 | 55° | 44° | 50° | — | — |
| 2014 | 73° | 45° | 59° | — | — |
| 2013coldest | 43° | 32° | 37° | — | — |
| 2012 | 49° | 45° | 47° | — | — |
| 2011 | 46° | 38° | 42° | — | — |
| 2010 | 52° | 43° | 47° | — | — |
| 2009 | 54° | 42° | 48° | — | — |
| 2008 | 56° | 45° | 50° | — | — |
| 2007 | 57° | 42° | 50° | — | — |
| 2006 | 67° | 56° | 61° | — | — |
| 2005 | 71° | 45° | 58° | 0.03" | — |
| 2004 | 64° | 45° | 54° | 1.14" | — |
| 2003 | 70° | 50° | 60° | 0.23" | — |
| 2002 | 48° | 42° | 45° | — | — |
| 2001 | 78° | 53° | 66° | 0.89" | — |
| 2000 | 68° | 43° | 55° | 3.58" | — |
| 1999 | 59° | 38° | 48° | 0.38" | — |
| 1998 | 65° | 46° | 55° | 1.6" | — |
| 1994 | 71° | 47° | 59° | — | — |
| 1993 | 60° | 37° | 49° | 2.31" | — |
| 1992 | 71° | 60° | 66° | 0.25" | — |
| 1991 | 50° | 39° | 45° | — | — |
| 1990 | 59° | 42° | 51° | 0.25" | — |
| 1989 | 68° | 43° | 55° | — | — |
| 1988 | 54° | 42° | 48° | — | — |
| 1987 | 83° | 56° | 69° | — | — |
| 1986 | 70° | 53° | 61° | 0.86" | — |
| 1985warmest | 86° | 64° | 75° | — | — |
| 1984 | 49° | 36° | 42° | — | — |
| 1983 | 51° | 32° | 42° | — | — |
| 1982 | 67° | 40° | 53° | 0.13" | — |
| 1981 | 52° | 35° | 43° | 0.13" | — |
| 1980 | 74° | 56° | 65° | — | — |
| 1979 | 67° | 47° | 57° | 0.03" | — |
| 1978 | 46° | 40° | 43° | 0.1" | — |
| 1977 | 76° | 61° | 68° | 1.85" | — |
| 1976 | 58° | 47° | 52° | — | — |
| 1975 | 48° | 39° | 44° | — | — |
| 1974 | 78° | 46° | 62° | — | — |
| 1973 | 76° | 54° | 65° | — | — |
| 1972 | 46° | 40° | 43° | — | — |
| 1971 | 67° | 46° | 56° | — | — |
52 years of data from CHICAGO GRANT PARK