Weather on December 21
Redding, CA
55 Years of Data
Avg High
53°F
Avg Low
38°F
Warmest
1999
63°F avg
Coldest
1990
23°F avg
About This Date
December 21st in Redding, CA typically brings cool winter weather, with average highs around 53°F and lows near 38°F. Over 55 years of records, the warmest December 21st was in 1999 (63°F average), while the coldest was 1990 (23°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 56% of December 21st dates historically, with the wettest December 21st recording 4.9" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Redding, CA? 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 |
|---|---|---|---|---|---|
| 2025 | 59° | 52° | 55° | 3.28" | — |
| 2024 | 49° | 45° | 47° | 0.91" | — |
| 2023 | 67° | 40° | 53° | — | — |
| 2022 | 55° | 38° | 46° | — | — |
| 2021 | 44° | 29° | 37° | 0.56" | — |
| 2020 | 56° | 31° | 44° | 0.03" | — |
| 2019 | 52° | 41° | 46° | — | — |
| 2018 | 59° | 44° | 52° | 0.28" | — |
| 2017 | 57° | 31° | 44° | — | — |
| 2016 | 65° | 51° | 58° | — | — |
| 2015 | 50° | 43° | 46° | 3.91" | — |
| 2014 | 56° | 53° | 54° | 0.08" | — |
| 2013 | 63° | 30° | 47° | — | — |
| 2012 | 40° | 32° | 36° | 4.9" | — |
| 2011 | 61° | 45° | 53° | — | — |
| 2010 | 52° | 45° | 48° | 0.74" | — |
| 2009 | 51° | 39° | 45° | 0.43" | — |
| 2008 | 43° | 40° | 41° | 0.84" | — |
| 2007 | 51° | 36° | 43° | — | — |
| 2006 | 43° | 37° | 40° | 0.71" | — |
| 2005 | 57° | 52° | 54° | 1.14" | — |
| 2004 | 65° | 47° | 56° | — | — |
| 2003 | 60° | 44° | 52° | 0.03" | — |
| 2002 | 51° | 37° | 44° | 0.94" | — |
| 2001 | 47° | 38° | 42° | 0.08" | — |
| 2000 | 49° | 32° | 40° | 0.25" | — |
| 1999warmest | 72° | 54° | 63° | — | — |
| 1998 | 45° | 26° | 35° | — | — |
| 1997 | 51° | 32° | 42° | 0.03" | — |
| 1996 | 41° | 33° | 37° | 0.28" | — |
| 1995 | 56° | 29° | 42° | — | — |
| 1994 | 60° | 31° | 45° | — | — |
| 1993 | 61° | 29° | 45° | — | — |
| 1992 | 51° | 34° | 42° | 0.03" | — |
| 1991 | 54° | 29° | 41° | — | — |
| 1990coldest | 29° | 17° | 23° | — | — |
| 1989 | 57° | 27° | 42° | — | — |
| 1988 | 49° | 33° | 41° | 0.23" | — |
| 1987 | 50° | 43° | 46° | 0.28" | — |
| 1986 | 54° | 32° | 43° | — | — |
| 1985 | 49° | 29° | 39° | — | — |
| 1984 | 56° | 37° | 46° | — | — |
| 1983 | 51° | 26° | 39° | — | — |
| 1982 | 54° | 43° | 48° | 3.1" | — |
| 1981 | 60° | 42° | 51° | 0.74" | — |
| 1980 | 51° | 43° | 47° | 2.08" | — |
| 1979 | 55° | 42° | 49° | 0.76" | — |
| 1978 | 65° | 31° | 48° | — | — |
| 1977 | 50° | 45° | 47° | 0.15" | — |
| 1976 | 63° | 39° | 51° | — | — |
| 1975 | 52° | 35° | 43° | — | — |
| 1974 | 46° | 34° | 40° | 0.15" | — |
| 1973 | 47° | 44° | 45° | 4.7" | — |
| 1972 | 58° | 47° | 52° | 0.94" | — |
| 1971 | 47° | 35° | 41° | 0.71" | — |
55 years of data from REDDING FIRE STN 2