Weather on October 1
Joliet, IL
55 Years of Data
Avg High
73°F
Avg Low
49°F
Warmest
1971
78°F avg
Coldest
2003
45°F avg
About This Date
October 1st in Joliet, IL typically brings pleasant fall weather, with average highs around 73°F and lows near 49°F. Over 55 years of records, the warmest October 1st was in 1971 (78°F average), while the coldest was 2003 (45°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 1st dates historically, with the wettest October 1st recording 3" of rain. The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.0°F warmer on this date compared to 20-30 years ago.
Planning for October 1st in Joliet, IL? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 61° | 71° | — | — |
| 2024 | 79° | 62° | 70° | — | — |
| 2023 | 82° | 58° | 70° | — | — |
| 2022 | 66° | 46° | 56° | — | — |
| 2021 | 82° | 60° | 71° | — | — |
| 2020 | 66° | 43° | 54° | — | — |
| 2019 | 85° | 66° | 75° | — | — |
| 2018 | 73° | 53° | 63° | — | — |
| 2017 | 69° | 48° | 59° | — | — |
| 2016 | 66° | 57° | 62° | 2.11" | — |
| 2015 | 61° | 44° | 52° | — | — |
| 2014 | 59° | 49° | 54° | — | — |
| 2013 | 76° | 47° | 61° | — | — |
| 2012 | 66° | 49° | 57° | — | — |
| 2011 | 60° | 41° | 51° | 0.05" | — |
| 2010 | 77° | 47° | 62° | — | — |
| 2009 | 65° | 44° | 54° | — | — |
| 2008 | 60° | 43° | 51° | — | — |
| 2007 | 84° | 52° | 68° | 1.02" | — |
| 2006 | 69° | 45° | 57° | — | — |
| 2005 | 71° | 43° | 57° | — | — |
| 2004 | 78° | 44° | 61° | — | — |
| 2003coldest | 54° | 36° | 45° | — | — |
| 2002 | 80° | 68° | 74° | — | — |
| 2001 | 72° | 48° | 60° | — | — |
| 2000 | 78° | 52° | 65° | — | — |
| 1999 | 71° | 42° | 57° | — | — |
| 1998 | 78° | 45° | 61° | 1.4" | — |
| 1997 | 67° | 49° | 58° | — | — |
| 1996 | 78° | 49° | 63° | — | — |
| 1995 | 84° | 54° | 69° | 0.03" | — |
| 1994 | 85° | 54° | 69° | — | — |
| 1993 | 62° | 35° | 49° | — | — |
| 1992 | 69° | 42° | 56° | — | — |
| 1991 | 77° | 53° | 65° | — | — |
| 1990 | 69° | 45° | 57° | — | — |
| 1989 | 79° | 49° | 64° | — | — |
| 1988 | 77° | 61° | 69° | — | — |
| 1987 | 66° | 41° | 54° | — | — |
| 1986 | 74° | 58° | 66° | 1.04" | — |
| 1985 | 61° | 35° | 48° | — | — |
| 1984 | 62° | 34° | 48° | — | — |
| 1983 | 79° | 50° | 64° | — | — |
| 1982 | 84° | 54° | 69° | — | — |
| 1981 | 75° | 53° | 64° | — | — |
| 1980 | 80° | 49° | 64° | — | — |
| 1979 | 73° | 46° | 60° | — | — |
| 1978 | 70° | 45° | 57° | — | — |
| 1977 | 72° | 43° | 57° | 3" | — |
| 1976 | 74° | 45° | 59° | — | — |
| 1975 | 74° | 44° | 59° | — | — |
| 1974 | 61° | 36° | 48° | — | — |
| 1973 | 70° | 54° | 62° | 1.19" | — |
| 1972 | 74° | 44° | 59° | — | — |
| 1971warmest | 92° | 65° | 78° | — | — |
55 years of data from JOLIET