Weather on May 19
Joliet, IL
55 Years of Data
Avg High
73°F
Avg Low
50°F
Warmest
1996
80°F avg
Coldest
2002
44°F avg
About This Date
May 19th in Joliet, IL typically brings pleasant spring weather, with average highs around 73°F and lows near 50°F. Over 53 years of records, the warmest May 19th was in 1996 (80°F average), while the coldest was 2002 (44°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 36% of May 19th dates historically, with the wettest May 19th recording 2.41" of rain. The last decade has been 5.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.8°F cooler on this date compared to 20-30 years ago.
Planning for May 19th in Joliet, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 46° | 53° | — | — |
| 2024 | 84° | 44° | 64° | — | — |
| 2023 | 75° | 47° | 61° | — | — |
| 2022 | 66° | 53° | 60° | 2.29" | — |
| 2021 | — | 59° | — | 0.25" | — |
| 2020 | 69° | 33° | 51° | 0.1" | — |
| 2019 | 81° | 47° | 64° | 1.78" | — |
| 2018 | 62° | 56° | 59° | 0.25" | — |
| 2017 | 80° | 45° | 62° | — | — |
| 2016 | 67° | 40° | 53° | — | — |
| 2015 | 76° | 41° | 58° | — | — |
| 2014 | 68° | 45° | 56° | — | — |
| 2013 | 79° | 62° | 70° | — | — |
| 2012 | 84° | 54° | 69° | — | — |
| 2011 | 60° | 51° | 56° | 0.18" | — |
| 2010 | 63° | 47° | 55° | — | — |
| 2009 | 66° | 41° | 54° | — | — |
| 2008 | 59° | 41° | 50° | — | — |
| 2007 | 71° | 42° | 57° | — | — |
| 2006 | 62° | 45° | 53° | — | — |
| 2005 | 80° | 56° | 68° | 2.03" | — |
| 2004 | 66° | 51° | 59° | 0.1" | — |
| 2003 | 73° | 52° | 62° | — | — |
| 2002coldest | 55° | 34° | 44° | 0.08" | — |
| 2001 | 92° | 57° | 74° | — | — |
| 2000 | 67° | 48° | 57° | 0.94" | — |
| 1999 | 69° | 48° | 59° | — | — |
| 1998 | 90° | 63° | 76° | — | — |
| 1997 | 82° | 49° | 65° | 1.98" | — |
| 1996warmest | 91° | 70° | 80° | — | — |
| 1995 | 53° | 42° | 48° | 0.46" | — |
| 1994 | 67° | 44° | 55° | — | — |
| 1993 | 71° | 42° | 57° | — | — |
| 1992 | 79° | 48° | 63° | — | — |
| 1991 | 65° | 50° | 57° | — | — |
| 1990 | 75° | 48° | 62° | — | — |
| 1989 | 76° | 61° | 68° | 0.08" | — |
| 1988 | 73° | 45° | 59° | — | — |
| 1987 | 81° | 63° | 72° | 2.41" | — |
| 1986 | 58° | 45° | 51° | 0.71" | — |
| 1985 | 69° | 44° | 57° | — | — |
| 1984 | 88° | 42° | 65° | — | — |
| 1983 | 68° | 50° | 59° | 0.33" | — |
| 1981 | 56° | 48° | 52° | — | — |
| 1980 | 65° | 53° | 59° | 0.41" | — |
| 1979 | 86° | 58° | 72° | 0.18" | — |
| 1978 | 80° | 54° | 67° | — | — |
| 1977 | 90° | 64° | 77° | — | — |
| 1976 | 67° | 42° | 54° | — | — |
| 1974 | 70° | 54° | 62° | — | — |
| 1973 | 74° | 52° | 63° | 1.63" | — |
| 1972 | 86° | 54° | 70° | — | — |
| 1971 | 87° | 61° | 74° | — | — |
53 years of data from JOLIET