Weather on May 9
Chicago, IL
55 Years of Data
Avg High
67°F
Avg Low
50°F
Warmest
1979
76°F avg
Coldest
1974
42°F avg
About This Date
May 9th in Chicago, IL typically brings mild spring weather, with average highs around 67°F and lows near 50°F. Over 53 years of records, the warmest May 9th was in 1979 (76°F average), while the coldest was 1974 (42°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 17% of May 9th dates historically, with the wettest May 9th recording 2.67" of rain. The last decade has been 8.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 8.2°F cooler on this date compared to 20-30 years ago.
Planning for May 9th in Chicago, IL? Great weather for outdoor activities.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 43° | 48° | — | — |
| 2024 | 59° | 51° | 55° | — | — |
| 2023 | 70° | 49° | 59° | — | — |
| 2022 | 77° | 48° | 63° | — | — |
| 2021 | 52° | 40° | 46° | — | — |
| 2020 | 59° | 31° | 45° | — | — |
| 2019 | 68° | 48° | 58° | — | — |
| 2018 | 82° | 56° | 69° | — | — |
| 2017 | 50° | 42° | 46° | — | — |
| 2016 | 53° | 48° | 51° | — | — |
| 2015 | 62° | 45° | 53° | — | — |
| 2014 | 73° | 59° | 66° | — | — |
| 2013 | 73° | 47° | 60° | — | — |
| 2012 | 61° | 50° | 55° | — | — |
| 2011 | 64° | 51° | 58° | — | — |
| 2010 | 56° | 44° | 50° | — | — |
| 2009 | 65° | 44° | 54° | — | — |
| 2008 | 54° | 46° | 50° | — | — |
| 2007 | 69° | 56° | 62° | — | — |
| 2006 | 73° | 60° | 67° | — | — |
| 2005 | 76° | 63° | 69° | 0.66" | — |
| 2004 | 88° | 54° | 71° | 0.61" | — |
| 2003 | 85° | 54° | 69° | 2.67" | — |
| 2002 | 67° | 49° | 58° | — | — |
| 2001 | 82° | 57° | 70° | — | — |
| 2000 | 67° | 52° | 59° | 1.8" | — |
| 1999 | 62° | 46° | 54° | — | — |
| 1998 | 66° | 51° | 59° | — | — |
| 1997 | 57° | 44° | 51° | — | — |
| 1994 | 71° | 55° | 63° | — | — |
| 1993 | 86° | 62° | 74° | — | — |
| 1992 | 68° | 52° | 60° | — | — |
| 1991 | 75° | 52° | 63° | — | — |
| 1990 | 82° | 62° | 72° | — | — |
| 1989 | 60° | 44° | 52° | 0.13" | — |
| 1988 | 84° | 55° | 70° | 0.41" | — |
| 1987 | 76° | 65° | 70° | — | — |
| 1986 | 64° | 47° | 55° | — | — |
| 1985 | 81° | 58° | 69° | — | — |
| 1984 | 52° | 43° | 47° | 0.05" | — |
| 1983 | 49° | 38° | 43° | 0.03" | — |
| 1982 | 78° | 48° | 63° | — | — |
| 1981 | 65° | 49° | 57° | — | — |
| 1980 | 55° | 42° | 49° | — | — |
| 1979warmest | 83° | 69° | 76° | — | — |
| 1978 | 71° | 49° | 60° | 0.05" | — |
| 1977 | 68° | 38° | 53° | — | — |
| 1976 | 76° | 52° | 64° | — | — |
| 1975 | 60° | 50° | 55° | — | — |
| 1974coldest | 44° | 40° | 42° | — | — |
| 1973 | 76° | 55° | 65° | — | — |
| 1972 | 53° | 43° | 48° | — | — |
| 1971 | 57° | 44° | 51° | — | — |
53 years of data from CHICAGO GRANT PARK