Weather on October 12
Joliet, IL
55 Years of Data
Avg High
67°F
Avg Low
44°F
Warmest
1973
72°F avg
Coldest
2009
37°F avg
About This Date
October 12th in Joliet, IL typically brings mild fall weather, with average highs around 67°F and lows near 44°F. Over 55 years of records, the warmest October 12th was in 1973 (72°F average), while the coldest was 2009 (37°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 24% of October 12th dates historically, with the wettest October 12th recording 2.54" of rain. The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.0°F cooler on this date compared to 20-30 years ago.
Planning for October 12th 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 | 72° | 46° | 59° | — | — |
| 2024 | 83° | 49° | 66° | — | — |
| 2023 | 54° | 30° | 42° | 2.54" | — |
| 2022 | 68° | 51° | 60° | 1.12" | — |
| 2021 | 76° | 60° | 68° | 1.88" | — |
| 2020 | 76° | 46° | 61° | — | — |
| 2019 | 65° | 35° | 50° | 1.93" | — |
| 2018 | 50° | 33° | 42° | — | — |
| 2017 | 59° | 56° | 57° | — | — |
| 2016 | 65° | 45° | 55° | 1.32" | — |
| 2015 | 78° | 51° | 65° | — | — |
| 2014 | 59° | 38° | 48° | — | — |
| 2013 | 76° | 54° | 65° | — | — |
| 2012 | 64° | 39° | 52° | — | — |
| 2011 | 79° | 56° | 67° | — | — |
| 2010 | 82° | 55° | 69° | — | — |
| 2009coldest | 43° | 31° | 37° | — | — |
| 2008 | 81° | 54° | 67° | — | — |
| 2007 | 55° | 43° | 49° | — | — |
| 2006 | 56° | 32° | 44° | 0.13" | — |
| 2005 | 63° | 56° | 59° | 0.05" | — |
| 2004 | 65° | 47° | 56° | — | — |
| 2003 | 78° | 47° | 62° | 0.15" | — |
| 2002 | 78° | 52° | 65° | — | — |
| 2001 | 65° | 52° | 58° | 1.83" | — |
| 2000 | 67° | 38° | 52° | — | — |
| 1999 | 69° | 49° | 59° | — | — |
| 1998 | 72° | 47° | 59° | — | — |
| 1997 | 79° | 49° | 64° | — | — |
| 1996 | 59° | 33° | 46° | — | — |
| 1995 | 79° | 45° | 62° | — | — |
| 1994 | 63° | 37° | 50° | — | — |
| 1993 | 58° | 36° | 47° | — | — |
| 1992 | 64° | 43° | 53° | — | — |
| 1991 | 63° | 41° | 52° | — | — |
| 1990 | 63° | 35° | 49° | — | — |
| 1989 | 78° | 40° | 59° | — | — |
| 1988 | 53° | 31° | 42° | — | — |
| 1987 | 50° | 30° | 40° | — | — |
| 1986 | 72° | 45° | 58° | 0.15" | — |
| 1985 | 65° | 44° | 54° | 0.15" | — |
| 1984 | 72° | 56° | 64° | — | — |
| 1983 | 75° | 48° | 62° | 1.07" | — |
| 1982 | 69° | 44° | 57° | — | — |
| 1981 | 64° | 42° | 53° | — | — |
| 1980 | 58° | 33° | 45° | — | — |
| 1979 | 59° | 43° | 51° | — | — |
| 1978 | 64° | 48° | 56° | — | — |
| 1977 | 48° | 31° | 39° | — | — |
| 1976 | 72° | 42° | 57° | — | — |
| 1975 | 72° | 42° | 57° | — | — |
| 1974 | 76° | 53° | 64° | — | — |
| 1973warmest | 81° | 64° | 72° | — | — |
| 1972 | 70° | 53° | 61° | 0.3" | — |
| 1971 | 70° | 35° | 52° | — | — |
55 years of data from JOLIET