Weather on May 12
Joliet, IL
55 Years of Data
Avg High
71°F
Avg Low
48°F
Warmest
2022
81°F avg
Coldest
1981
41°F avg
About This Date
May 12th in Joliet, IL typically brings pleasant spring weather, with average highs around 71°F and lows near 48°F. Over 53 years of records, the warmest May 12th was in 2022 (81°F average), while the coldest was 1981 (41°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 42% of May 12th dates historically, with the wettest May 12th recording 8.13" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 12th in Joliet, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 53° | 69° | — | — |
| 2024 | 71° | 48° | 60° | — | — |
| 2023 | 83° | 57° | 70° | — | — |
| 2022warmest | 92° | 70° | 81° | — | — |
| 2021 | 56° | 33° | 44° | — | — |
| 2020 | 51° | 36° | 43° | — | — |
| 2019 | 54° | 44° | 49° | 0.3" | — |
| 2018 | 62° | 48° | 55° | — | — |
| 2017 | 65° | 47° | 56° | — | — |
| 2016 | 73° | 57° | 65° | 0.15" | — |
| 2015 | 68° | 49° | 58° | 0.3" | — |
| 2014 | 83° | 59° | 71° | 2.39" | — |
| 2013 | 60° | 37° | 49° | — | — |
| 2012 | 77° | 45° | 61° | — | — |
| 2011 | 90° | 64° | 77° | 0.28" | — |
| 2010 | 61° | 46° | 53° | — | — |
| 2009 | 67° | 41° | 54° | — | — |
| 2008 | 65° | 40° | 52° | 2.29" | — |
| 2007 | 76° | 48° | 62° | — | — |
| 2006 | 51° | 38° | 44° | 1.4" | — |
| 2005 | 69° | 44° | 57° | 2.03" | — |
| 2004 | 82° | 59° | 71° | 0.03" | — |
| 2003 | 54° | 48° | 51° | 0.05" | — |
| 2002 | 65° | 50° | 57° | 8.13" | — |
| 2001 | 67° | 42° | 54° | 0.3" | — |
| 2000 | 78° | 59° | 69° | 1.09" | — |
| 1999 | 82° | 58° | 70° | 1.96" | — |
| 1998 | 74° | 47° | 60° | — | — |
| 1997 | 70° | 43° | 56° | — | — |
| 1996 | 55° | 40° | 47° | — | — |
| 1995 | 64° | 46° | 55° | — | — |
| 1994 | 77° | 44° | 61° | — | — |
| 1993 | 79° | 56° | 67° | — | — |
| 1992 | 83° | 59° | 71° | — | — |
| 1991 | 83° | 62° | 72° | — | — |
| 1990 | 63° | 38° | 50° | 0.89" | — |
| 1989 | 63° | 41° | 52° | — | — |
| 1988 | 77° | 50° | 64° | — | — |
| 1987 | 89° | 49° | 69° | 1.6" | — |
| 1986 | 77° | 54° | 65° | 0.1" | — |
| 1985 | 83° | 55° | 69° | 0.28" | — |
| 1984 | 71° | 50° | 61° | — | — |
| 1983 | 77° | 47° | 62° | — | — |
| 1981coldest | 52° | 30° | 41° | — | — |
| 1980 | 71° | 50° | 61° | 0.03" | — |
| 1979 | 67° | 43° | 55° | 0.3" | — |
| 1978 | 69° | 57° | 63° | 2.01" | — |
| 1977 | 75° | 48° | 62° | — | — |
| 1976 | 63° | 39° | 51° | — | — |
| 1974 | 68° | 44° | 56° | — | — |
| 1973 | 67° | 46° | 56° | — | — |
| 1972 | 77° | 48° | 63° | — | — |
| 1971 | 70° | 32° | 51° | 0.66" | — |
53 years of data from JOLIET