Weather on April 9
Joliet, IL
55 Years of Data
Avg High
55°F
Avg Low
36°F
Warmest
2001
64°F avg
Coldest
1997
26°F avg
About This Date
April 9th in Joliet, IL typically brings cool spring weather, with average highs around 55°F and lows near 36°F. Over 55 years of records, the warmest April 9th was in 2001 (64°F average), while the coldest was 1997 (26°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 44% of April 9th dates historically, with the wettest April 9th recording 3.81" of rain. The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.1°F warmer on this date compared to 20-30 years ago.
Planning for April 9th in Joliet, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 71° | 38° | 54° | — | — |
| 2025 | 47° | 34° | 41° | — | — |
| 2024 | 72° | 43° | 57° | — | — |
| 2023 | 62° | 37° | 50° | — | — |
| 2022 | 41° | 32° | 37° | 0.08" | — |
| 2021 | 62° | 49° | 55° | 1.27" | — |
| 2020 | 76° | 39° | 57° | 0.03" | — |
| 2019 | 73° | 47° | 60° | — | — |
| 2018 | 43° | 23° | 33° | 0.05" | — |
| 2017 | 66° | 36° | 51° | — | — |
| 2016 | 43° | 24° | 33° | 0.2" | — |
| 2015 | 56° | 45° | 50° | 1.98" | — |
| 2014 | 59° | 37° | 48° | — | — |
| 2013 | 69° | 44° | 57° | 0.3" | — |
| 2012 | 66° | 42° | 54° | — | — |
| 2011 | 49° | 46° | 47° | — | — |
| 2010 | 41° | 32° | 37° | — | — |
| 2009 | 54° | 30° | 42° | — | — |
| 2008 | 55° | 37° | 46° | 1.83" | — |
| 2007 | 39° | 30° | 35° | — | — |
| 2006 | 48° | 30° | 39° | — | — |
| 2005 | 64° | 43° | 53° | — | — |
| 2004 | 55° | 37° | 46° | — | — |
| 2003 | 34° | 30° | 32° | — | — |
| 2002 | 60° | 48° | 54° | 3.66" | — |
| 2001warmest | 82° | 46° | 64° | 0.51" | — |
| 2000 | 42° | 28° | 35° | — | — |
| 1999 | 69° | 46° | 58° | 3.81" | — |
| 1998 | 52° | 44° | 48° | 0.84" | — |
| 1997coldest | 31° | 21° | 26° | — | — |
| 1996 | 44° | 22° | 33° | — | — |
| 1995 | 53° | 38° | 45° | 2.18" | — |
| 1994 | 62° | 35° | 49° | — | — |
| 1993 | 59° | 45° | 52° | 1.45" | — |
| 1992 | 63° | 39° | 51° | — | — |
| 1991 | 73° | 46° | 60° | 2.13" | — |
| 1990 | 64° | 35° | 50° | — | — |
| 1989 | 49° | 25° | 37° | — | — |
| 1988 | 67° | 39° | 53° | — | — |
| 1987 | 61° | 29° | 45° | — | — |
| 1986 | 62° | 35° | 49° | — | — |
| 1985 | 39° | 24° | 32° | 0.18" | — |
| 1984 | 52° | 40° | 46° | 0.05" | — |
| 1983 | 49° | 32° | 40° | 2.9" | — |
| 1982 | 34° | 25° | 29° | 0.43" | — |
| 1981 | 67° | 41° | 54° | 3.15" | — |
| 1980 | 59° | 32° | 46° | 0.3" | — |
| 1979 | 49° | 31° | 40° | 0.64" | — |
| 1978 | 48° | 39° | 44° | 0.1" | — |
| 1977 | 46° | 28° | 37° | — | — |
| 1976 | 52° | 28° | 40° | — | — |
| 1974 | 47° | 25° | 36° | — | — |
| 1973 | 45° | 30° | 37° | 2.08" | — |
| 1972 | 48° | 24° | 36° | — | — |
| 1971 | 75° | 48° | 62° | — | — |
55 years of data from JOLIET