Weather on April 18
Chicago, IL
55 Years of Data
Avg High
62°F
Avg Low
44°F
Warmest
2002
79°F avg
Coldest
1983
34°F avg
About This Date
April 18th in Chicago, IL typically brings mild spring weather, with average highs around 62°F and lows near 44°F. Over 52 years of records, the warmest April 18th was in 2002 (79°F average), while the coldest was 1983 (34°F) — a 45°F range across recorded history. Rain or other precipitation has occurred on about 13% of April 18th dates historically, with the wettest April 18th recording 1.65" of rain. The last decade has been 6.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 6.0°F cooler on this date compared to 20-30 years ago.
Planning for April 18th in Chicago, IL? Great weather for outdoor activities.
Cooling Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 61° | 68° | — | — |
| 2024 | 55° | 46° | 51° | — | — |
| 2023 | 52° | 35° | 43° | — | — |
| 2022 | 41° | 33° | 37° | — | — |
| 2021 | 60° | 43° | 51° | — | — |
| 2020 | 57° | 35° | 46° | — | — |
| 2019 | 65° | 41° | 53° | — | — |
| 2018 | 36° | 33° | 34° | — | — |
| 2017 | 76° | 43° | 59° | — | — |
| 2016 | 65° | 46° | 55° | — | — |
| 2015 | 67° | 44° | 55° | — | — |
| 2014 | 46° | 37° | 42° | — | — |
| 2013 | 64° | 41° | 53° | — | — |
| 2012 | 72° | 47° | 59° | — | — |
| 2011 | 42° | 35° | 39° | — | — |
| 2010 | 48° | 41° | 45° | — | — |
| 2009 | 67° | 45° | 56° | — | — |
| 2008 | 75° | 46° | 61° | — | — |
| 2007 | 45° | 40° | 42° | — | — |
| 2006 | 57° | 46° | 52° | — | — |
| 2005 | 83° | 51° | 67° | — | — |
| 2004 | 87° | 54° | 70° | — | — |
| 2003 | 48° | 39° | 44° | — | — |
| 2002warmest | 89° | 68° | 79° | — | — |
| 2001 | 56° | 31° | 43° | — | — |
| 2000 | 55° | 41° | 48° | — | — |
| 1999 | 48° | 41° | 45° | 0.51" | — |
| 1998 | 60° | 39° | 50° | — | — |
| 1994 | 76° | 56° | 66° | — | — |
| 1993 | 62° | 45° | 53° | — | — |
| 1992 | 52° | 40° | 46° | 0.1" | — |
| 1991 | 56° | 40° | 48° | — | — |
| 1990 | 54° | 33° | 43° | — | — |
| 1989 | 49° | 37° | 43° | 0.66" | — |
| 1988 | 74° | 36° | 55° | — | — |
| 1987 | 70° | 48° | 59° | — | — |
| 1986 | 66° | 40° | 53° | — | — |
| 1985 | 82° | 62° | 72° | — | — |
| 1984 | 45° | 35° | 40° | 0.33" | — |
| 1983coldest | 38° | 30° | 34° | — | — |
| 1982 | 63° | 41° | 52° | 0.03" | — |
| 1981 | 83° | 45° | 64° | 0.08" | — |
| 1980 | 71° | 44° | 58° | — | — |
| 1979 | 55° | 39° | 47° | — | — |
| 1978 | 51° | 42° | 47° | 1.65" | — |
| 1977 | 85° | 63° | 74° | — | — |
| 1976 | 80° | 63° | 71° | — | — |
| 1975 | 67° | 46° | 56° | — | — |
| 1974 | 58° | 38° | 48° | — | — |
| 1973 | 57° | 52° | 54° | — | — |
| 1972 | 79° | 42° | 60° | — | — |
| 1971 | 57° | 43° | 50° | — | — |
52 years of data from CHICAGO GRANT PARK