Weather on December 21
Elgin, IL
55 Years of Data
Avg High
32°F
Avg Low
16°F
Warmest
2018
43°F avg
Coldest
1989
-6°F avg
About This Date
December 21st in Elgin, IL typically brings cold winter weather, with average highs around 32°F and lows near 16°F. Over 54 years of records, the warmest December 21st was in 2018 (43°F average), while the coldest was 1989 (-6°F) — a 49°F range across recorded history. Precipitation has occurred on 35% of recorded December 21st dates, with snow falling 19% of the time (heaviest snowfall: 6.4"). The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.9°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Elgin, IL? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Warming Trend
2.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 40° | 14° | 27° | — | — |
| 2024 | 32° | 10° | 21° | — | — |
| 2023 | 44° | 30° | 37° | — | — |
| 2022 | 30° | 8° | 19° | — | — |
| 2021 | 41° | 21° | 31° | — | — |
| 2020 | 41° | 31° | 36° | — | — |
| 2019 | 40° | 19° | 29° | — | — |
| 2018warmest | 48° | 37° | 43° | 0.25" | — |
| 2017 | 36° | 25° | 30° | — | — |
| 2016 | 28° | 16° | 22° | — | — |
| 2015 | 50° | 34° | 42° | 1.17" | — |
| 2014 | 32° | 27° | 29° | — | — |
| 2013 | 32° | 26° | 29° | 0.3" | — |
| 2012 | 45° | 23° | 34° | 1.75" | 1.2" |
| 2011 | 38° | 33° | 35° | 0.05" | — |
| 2010 | 28° | 11° | 19° | 0.89" | 3.3" |
| 2009 | 29° | 24° | 26° | 0.03" | 0.1" |
| 2008 | 26° | -8° | 9° | 0.18" | 0.7" |
| 2007 | 39° | 26° | 33° | 0.13" | — |
| 2006 | 39° | 24° | 32° | 1.09" | — |
| 2005 | 21° | 6° | 14° | — | — |
| 2004 | 28° | 13° | 20° | — | — |
| 2003 | 30° | 12° | 21° | — | — |
| 2002 | 34° | 27° | 30° | — | — |
| 2001 | 41° | 22° | 31° | — | — |
| 2000 | 18° | -2° | 8° | 0.51" | 4" |
| 1999 | 21° | 0° | 11° | — | — |
| 1998 | 33° | 27° | 30° | 0.13" | — |
| 1997 | 35° | 24° | 30° | — | — |
| 1996 | 21° | 1° | 11° | — | — |
| 1995 | 27° | 16° | 21° | — | — |
| 1994 | 39° | 24° | 32° | — | — |
| 1993 | 35° | 25° | 30° | — | — |
| 1992 | 24° | 11° | 17° | — | — |
| 1991 | 33° | 27° | 30° | 0.84" | 1" |
| 1990 | 47° | 29° | 38° | — | — |
| 1989coldest | 3° | -16° | -6° | 0.05" | 0.4" |
| 1988 | 55° | 28° | 42° | — | — |
| 1987 | 36° | 24° | 30° | — | — |
| 1986 | 39° | 23° | 31° | — | — |
| 1985 | 17° | -1° | 8° | — | — |
| 1984 | 34° | 12° | 23° | 0.28" | — |
| 1983 | 21° | 1° | 11° | — | — |
| 1982 | 32° | 15° | 24° | — | — |
| 1981 | 29° | 1° | 15° | 0.28" | 1" |
| 1980 | 9° | -4° | 2° | — | — |
| 1979 | 43° | 28° | 35° | — | — |
| 1978 | 34° | 12° | 23° | 0.41" | — |
| 1977 | 35° | 17° | 26° | 1.02" | 6.4" |
| 1976 | 25° | 0° | 12° | — | — |
| 1975 | 30° | 20° | 25° | — | — |
| 1974 | 32° | 13° | 22° | 0.25" | 1" |
| 1973 | 21° | -1° | 10° | — | — |
| 1971 | 34° | 25° | 29° | — | — |
54 years of data from ELGIN WATER