Weather on March 21
Elgin, IL
55 Years of Data
Avg High
48°F
Avg Low
28°F
Warmest
2012
72°F avg
Coldest
1986
18°F avg
About This Date
March 21st in Elgin, IL typically brings chilly spring weather, with average highs around 48°F and lows near 28°F. Over 55 years of records, the warmest March 21st was in 2012 (72°F average), while the coldest was 1986 (18°F) — a 54°F range across recorded history. Precipitation has occurred on 33% of recorded March 21st dates, with snow falling 11% of the time (heaviest snowfall: 4.5"). The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for March 21st in Elgin, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 71° | 41° | 56° | — | — |
| 2025 | 45° | 28° | 36° | — | — |
| 2024 | 40° | 25° | 32° | — | — |
| 2023 | 52° | 25° | 38° | — | — |
| 2022 | 63° | 29° | 46° | — | — |
| 2021 | 59° | 23° | 41° | — | — |
| 2020 | 40° | 23° | 31° | 0.05" | — |
| 2019 | 43° | 35° | 39° | 0.18" | — |
| 2018 | 38° | 25° | 31° | — | — |
| 2017 | 55° | 26° | 41° | — | — |
| 2016 | 46° | 27° | 36° | — | — |
| 2015 | 51° | 35° | 43° | — | — |
| 2014 | 46° | 25° | 35° | — | — |
| 2013 | 25° | 11° | 18° | 0.03" | 0.1" |
| 2012warmest | 83° | 61° | 72° | — | — |
| 2011 | 60° | 26° | 43° | 0.56" | — |
| 2010 | 34° | 30° | 32° | 0.3" | 0.9" |
| 2009 | 45° | 21° | 33° | — | — |
| 2008 | 50° | 25° | 37° | 0.43" | 1.7" |
| 2007 | 44° | 29° | 36° | 1.14" | — |
| 2006 | 38° | 27° | 32° | — | — |
| 2005 | 40° | 23° | 31° | — | — |
| 2004 | 61° | 27° | 44° | — | — |
| 2003 | 64° | 38° | 51° | 0.13" | — |
| 2002 | 50° | 24° | 37° | — | — |
| 2001 | 53° | 26° | 40° | — | — |
| 2000 | 54° | 44° | 49° | 1.52" | — |
| 1999 | 53° | 25° | 39° | — | — |
| 1998 | 36° | 30° | 33° | — | — |
| 1997 | 57° | 38° | 47° | — | — |
| 1996 | 39° | 19° | 29° | — | — |
| 1995 | 58° | 33° | 45° | 0.2" | — |
| 1994 | 60° | 39° | 50° | 1.63" | — |
| 1993 | 37° | 28° | 33° | 0.05" | — |
| 1992 | 42° | 23° | 33° | — | — |
| 1991 | 59° | 35° | 47° | — | — |
| 1990 | 45° | 25° | 35° | — | — |
| 1989 | 38° | 19° | 28° | — | — |
| 1988 | 37° | 21° | 29° | — | — |
| 1987 | 57° | 27° | 42° | — | — |
| 1986coldest | 26° | 11° | 18° | — | — |
| 1985 | 46° | 26° | 36° | — | — |
| 1984 | 38° | 30° | 34° | 0.05" | — |
| 1983 | 30° | 22° | 26° | 0.74" | 4.5" |
| 1982 | 42° | 32° | 37° | — | — |
| 1981 | 46° | 23° | 35° | — | — |
| 1980 | 54° | 31° | 42° | — | — |
| 1979 | 46° | 30° | 38° | — | — |
| 1978 | 49° | 32° | 40° | — | — |
| 1977 | 43° | 28° | 35° | — | 1" |
| 1976 | 66° | 28° | 47° | 0.74" | — |
| 1975 | 62° | — | — | 0.13" | — |
| 1974 | 41° | 18° | 29° | 0.2" | 1" |
| 1973 | 43° | 25° | 34° | — | — |
| 1972 | 62° | 36° | 49° | 0.64" | — |
55 years of data from ELGIN WATER