Weather on December 21
Chico, CA
55 Years of Data
Avg High
54°F
Avg Low
38°F
Warmest
2016
57°F avg
Coldest
1990
23°F avg
About This Date
December 21st in Chico, CA typically brings cool winter weather, with average highs around 54°F and lows near 38°F. Over 54 years of records, the warmest December 21st was in 2016 (57°F average), while the coldest was 1990 (23°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 21st dates historically, with the wettest December 21st recording 4.11" of rain. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Chico, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 54° | 52° | 53° | — | — |
| 2024 | 55° | 43° | 49° | — | — |
| 2023 | 63° | 49° | 56° | — | — |
| 2022 | 53° | 44° | 49° | — | — |
| 2021 | 48° | 38° | 43° | — | — |
| 2020 | 58° | 43° | 50° | — | — |
| 2019 | 55° | 44° | 50° | — | — |
| 2018 | 54° | 49° | 51° | — | — |
| 2017 | 52° | 38° | 45° | — | — |
| 2016warmest | 63° | 51° | 57° | — | — |
| 2015 | 47° | 41° | 44° | — | — |
| 2014 | 55° | 49° | 52° | — | — |
| 2013 | 61° | 34° | 47° | — | — |
| 2012 | 54° | 37° | 45° | 4.04" | — |
| 2011 | 69° | 28° | 49° | — | — |
| 2010 | 52° | 43° | 47° | 1.02" | — |
| 2009 | 57° | 45° | 51° | — | — |
| 2008 | 45° | 42° | 43° | — | — |
| 2007 | 52° | 42° | 47° | 1.83" | — |
| 2006 | 43° | 41° | 42° | — | — |
| 2005 | 56° | 54° | 55° | — | — |
| 2004 | 66° | 32° | 49° | — | — |
| 2003 | 61° | 40° | 50° | — | — |
| 2002 | 48° | 44° | 46° | 4.11" | — |
| 2001 | 51° | 43° | 47° | 0.89" | — |
| 2000 | 63° | 32° | 47° | — | — |
| 1999 | 71° | 31° | 51° | — | — |
| 1998 | 44° | 22° | 33° | — | — |
| 1997 | 50° | 34° | 42° | 0.05" | — |
| 1996 | 44° | 37° | 41° | 0.51" | — |
| 1995 | 50° | 30° | 40° | — | — |
| 1994 | 42° | 37° | 40° | — | — |
| 1993 | 40° | 31° | 35° | — | — |
| 1992 | 48° | 38° | 43° | 0.05" | — |
| 1991 | 52° | 30° | 41° | — | — |
| 1990coldest | 30° | 16° | 23° | — | — |
| 1989 | 51° | 28° | 40° | — | — |
| 1988 | 49° | 42° | 45° | 1.85" | — |
| 1987 | 54° | 38° | 46° | 0.33" | — |
| 1986 | 61° | 30° | 45° | 0.03" | — |
| 1985 | 63° | 47° | 55° | — | — |
| 1984 | 51° | 31° | 41° | — | — |
| 1983 | 48° | 30° | 39° | — | — |
| 1982 | 53° | 48° | 51° | 1.22" | — |
| 1981 | 64° | 47° | 55° | — | — |
| 1979 | 48° | 44° | 46° | 1.24" | — |
| 1978 | 52° | 26° | 39° | — | — |
| 1977 | 57° | 34° | 45° | 0.08" | — |
| 1976 | 65° | 26° | 45° | — | — |
| 1975 | 63° | 32° | 47° | — | — |
| 1974 | 44° | 39° | 42° | — | — |
| 1973 | 53° | 45° | 49° | 2.34" | — |
| 1972 | 60° | 50° | 55° | 0.03" | — |
| 1971 | 48° | 27° | 37° | 0.03" | — |
54 years of data from CHICO UNIV FARM