Weather on September 22
Joliet, IL
55 Years of Data
Avg High
73°F
Avg Low
52°F
Warmest
2017
80°F avg
Coldest
1983
43°F avg
About This Date
September 22nd in Joliet, IL typically brings pleasant fall weather, with average highs around 73°F and lows near 52°F. Over 54 years of records, the warmest September 22nd was in 2017 (80°F average), while the coldest was 1983 (43°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 41% of September 22nd dates historically, with the wettest September 22nd recording 1.8" of rain. The last decade has been 7.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.7°F warmer on this date compared to 20-30 years ago.
Planning for September 22nd in Joliet, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
2.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 65° | 73° | 0.03" | — |
| 2024 | 91° | 60° | 76° | — | — |
| 2023 | 70° | 61° | 65° | 1.4" | — |
| 2022 | 85° | 51° | 68° | — | — |
| 2021 | — | 56° | — | 0.36" | — |
| 2020 | 74° | 46° | 60° | — | — |
| 2019 | 76° | 66° | 71° | 1.8" | — |
| 2018 | — | 53° | — | — | — |
| 2017warmest | 91° | 69° | 80° | — | — |
| 2016 | 78° | 64° | 71° | — | — |
| 2015 | 74° | 52° | 63° | — | — |
| 2014 | 67° | 46° | 56° | — | — |
| 2013 | 67° | 47° | 57° | — | — |
| 2012 | 61° | 49° | 55° | 0.25" | — |
| 2011 | 71° | 51° | 61° | 0.05" | — |
| 2010 | 88° | 63° | 75° | 0.89" | — |
| 2009 | 70° | 61° | 65° | 0.15" | — |
| 2008 | 81° | 59° | 70° | — | — |
| 2007 | 83° | 63° | 73° | — | — |
| 2006 | 68° | 45° | 56° | 0.25" | — |
| 2005 | 86° | 59° | 73° | — | — |
| 2004 | 83° | 55° | 69° | — | — |
| 2003 | 78° | 45° | 61° | 0.84" | — |
| 2002 | 82° | 51° | 67° | 0.33" | — |
| 2001 | 74° | 52° | 63° | 0.03" | — |
| 2000 | 65° | 44° | 54° | — | — |
| 1999 | 64° | 42° | 53° | — | — |
| 1998 | 73° | 59° | 66° | — | — |
| 1997 | 66° | 51° | 59° | — | — |
| 1996 | 73° | 53° | 63° | — | — |
| 1995 | 51° | 35° | 43° | 0.36" | — |
| 1994 | 82° | 58° | 70° | 0.03" | — |
| 1993 | 67° | 56° | 61° | 0.03" | — |
| 1992 | 73° | 56° | 64° | 0.03" | — |
| 1991 | 64° | 43° | 53° | 0.08" | — |
| 1990 | 73° | 46° | 60° | 0.97" | — |
| 1989 | 78° | 55° | 67° | — | — |
| 1988 | 72° | 53° | 62° | — | — |
| 1987 | 71° | 44° | 58° | 0.51" | — |
| 1986 | 80° | 60° | 70° | 0.03" | — |
| 1985 | 68° | 57° | 63° | — | — |
| 1984 | 88° | 56° | 72° | — | — |
| 1983coldest | 53° | 33° | 43° | — | — |
| 1982 | 61° | 39° | 50° | — | — |
| 1981 | 79° | 51° | 65° | — | — |
| 1980 | 81° | 66° | 73° | — | — |
| 1979 | 65° | 45° | 55° | — | — |
| 1978 | 63° | 38° | 50° | 0.08" | — |
| 1977 | 67° | 44° | 55° | — | — |
| 1976 | 64° | 36° | 50° | — | — |
| 1975 | 55° | 48° | 52° | — | — |
| 1974 | 69° | 35° | 52° | — | — |
| 1973 | 78° | 65° | 71° | 0.1" | — |
| 1971 | 78° | 42° | 60° | — | — |
54 years of data from JOLIET