Weather on February 21
Joliet, IL
55 Years of Data
Avg High
42°F
Avg Low
23°F
Warmest
2017
56°F avg
Coldest
2015
8°F avg
About This Date
February 21st in Joliet, IL typically brings chilly winter weather, with average highs around 42°F and lows near 23°F. Over 55 years of records, the warmest February 21st was in 2017 (56°F average), while the coldest was 2015 (8°F) — a 48°F range across recorded history. Precipitation has occurred on 29% of recorded February 21st dates, with snow falling 5% of the time (heaviest snowfall: 2.1"). 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 February 21st in Joliet, IL? Bring layers as temperatures can vary throughout the day.
Cooling Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 31° | 26° | 29° | — | — |
| 2025 | 32° | 8° | 20° | — | — |
| 2024 | 56° | 29° | 42° | — | — |
| 2023 | 49° | 29° | 39° | — | — |
| 2022 | 46° | 27° | 36° | — | — |
| 2021 | 27° | 4° | 15° | — | — |
| 2020 | 23° | 10° | 17° | — | — |
| 2019 | 37° | 27° | 32° | — | — |
| 2018 | 65° | 26° | 45° | 2.92" | — |
| 2017warmest | 67° | 45° | 56° | 0.25" | — |
| 2016 | 59° | 37° | 48° | — | — |
| 2015coldest | 18° | -2° | 8° | — | — |
| 2014 | 52° | 30° | 41° | 0.89" | — |
| 2013 | 23° | 7° | 15° | — | — |
| 2012 | 42° | 23° | 33° | 0.18" | — |
| 2011 | 40° | 33° | 36° | 2.11" | — |
| 2010 | 41° | 17° | 29° | — | — |
| 2009 | 29° | 11° | 20° | 0.25" | 1" |
| 2008 | 18° | 7° | 12° | — | — |
| 2007 | 32° | 27° | 29° | — | — |
| 2006 | 33° | 13° | 23° | — | — |
| 2005 | 40° | 34° | 37° | 0.03" | — |
| 2004 | 47° | 33° | 40° | 0.66" | 0.1" |
| 2003 | 49° | 26° | 37° | — | — |
| 2002 | 56° | 30° | 43° | — | — |
| 2001 | 38° | 12° | 25° | — | — |
| 2000 | 27° | 21° | 24° | — | — |
| 1999 | 30° | 21° | 26° | — | — |
| 1998 | 43° | 34° | 38° | 0.03" | — |
| 1997 | 50° | 31° | 40° | 6.99" | — |
| 1996 | 57° | 31° | 44° | — | — |
| 1995 | 52° | 24° | 38° | — | — |
| 1994 | 49° | 31° | 40° | — | — |
| 1993 | 31° | 22° | 26° | 0.64" | 2.1" |
| 1992 | 48° | 29° | 38° | — | — |
| 1991 | 47° | 30° | 38° | — | — |
| 1990 | 37° | 12° | 25° | — | — |
| 1989 | 31° | 23° | 27° | 0.53" | — |
| 1988 | 39° | 6° | 23° | — | — |
| 1987 | 50° | 24° | 37° | — | — |
| 1986 | 37° | 17° | 27° | 0.15" | — |
| 1985 | 42° | 19° | 31° | — | — |
| 1984 | 45° | 26° | 35° | — | — |
| 1983 | 63° | 36° | 49° | — | — |
| 1982 | 44° | 32° | 38° | — | — |
| 1981 | 53° | 31° | 42° | — | — |
| 1980 | 40° | 32° | 36° | — | — |
| 1979 | 37° | 12° | 25° | 1.27" | — |
| 1978 | 25° | 5° | 15° | — | — |
| 1977 | 37° | 22° | 29° | — | — |
| 1976 | 57° | 33° | 45° | 3" | — |
| 1974 | 47° | 33° | 40° | 0.33" | — |
| 1973 | — | 23° | — | — | — |
| 1972 | 46° | 31° | 38° | — | — |
| 1971 | 36° | 28° | 32° | — | — |
55 years of data from JOLIET