Weather on March 18
Joliet, IL
55 Years of Data
Avg High
48°F
Avg Low
29°F
Warmest
2012
67°F avg
Coldest
2026
19°F avg
About This Date
March 18th in Joliet, IL typically brings chilly spring weather, with average highs around 48°F and lows near 29°F. Over 54 years of records, the warmest March 18th was in 2012 (67°F average), while the coldest was 2026 (19°F) — a 48°F range across recorded history. Rain or other precipitation has occurred on about 30% of March 18th dates historically, with the wettest March 18th recording 2.39" of rain. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in Joliet, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026coldest | 25° | 14° | 19° | — | — |
| 2025 | 74° | 44° | 59° | — | — |
| 2024 | 40° | 24° | 32° | — | — |
| 2023 | 33° | 12° | 23° | — | — |
| 2022 | 71° | 36° | 53° | — | — |
| 2021 | 41° | 31° | 36° | 0.23" | — |
| 2020 | 48° | 31° | 39° | — | — |
| 2019 | 42° | 23° | 33° | 0.3" | — |
| 2018 | 44° | 25° | 34° | — | — |
| 2017 | 51° | 34° | 42° | — | — |
| 2016 | 57° | 32° | 45° | — | — |
| 2015 | 46° | 28° | 37° | — | — |
| 2014 | 37° | 17° | 27° | — | — |
| 2013 | 39° | 28° | 34° | — | — |
| 2012warmest | 80° | 54° | 67° | — | — |
| 2011 | 69° | 43° | 56° | — | — |
| 2010 | 63° | 32° | 47° | — | — |
| 2009 | 72° | 43° | 57° | — | — |
| 2008 | 41° | 30° | 36° | 0.23" | — |
| 2007 | 40° | 24° | 32° | — | — |
| 2006 | 42° | 25° | 33° | — | — |
| 2005 | 49° | 31° | 40° | — | — |
| 2004 | 40° | 30° | 35° | — | — |
| 2003 | 72° | 43° | 57° | — | — |
| 2002 | 42° | 34° | 38° | 0.08" | — |
| 2001 | 41° | 25° | 33° | — | — |
| 2000 | 38° | 25° | 31° | — | — |
| 1999 | 63° | 33° | 48° | — | — |
| 1998 | 45° | 31° | 38° | 2.39" | — |
| 1997 | 59° | 35° | 47° | — | — |
| 1996 | 35° | 26° | 31° | 0.03" | — |
| 1995 | 61° | 38° | 49° | — | — |
| 1994 | 38° | 21° | 29° | — | — |
| 1993 | 28° | 15° | 22° | — | — |
| 1992 | 51° | 32° | 42° | — | — |
| 1991 | 43° | 37° | 40° | 0.91" | — |
| 1990 | 50° | 30° | 40° | — | — |
| 1989 | 40° | 22° | 31° | 1.27" | — |
| 1988 | 43° | 26° | 34° | 0.03" | — |
| 1987 | 52° | 26° | 39° | — | — |
| 1986 | 52° | 34° | 43° | 0.05" | — |
| 1985 | 44° | 19° | 32° | — | — |
| 1984 | 32° | 26° | 29° | 0.41" | — |
| 1983 | 55° | 34° | 44° | 0.89" | — |
| 1982 | 52° | 33° | 42° | — | — |
| 1981 | 39° | 21° | 30° | — | — |
| 1980 | 39° | 24° | 32° | 0.05" | — |
| 1979 | 45° | 34° | 39° | 0.28" | — |
| 1978 | 36° | 18° | 27° | — | — |
| 1977 | 47° | 34° | 40° | 1.32" | — |
| 1976 | 37° | 20° | 28° | — | — |
| 1974 | 52° | 30° | 41° | — | — |
| 1972 | 50° | 30° | 40° | — | — |
| 1971 | 42° | 32° | 37° | 0.3" | — |
54 years of data from JOLIET