Weather on December 21
Corona, CA
55 Years of Data
Avg High
68°F
Avg Low
41°F
Warmest
2005
68°F avg
Coldest
1998
45°F avg
About This Date
December 21st in Corona, CA typically brings mild winter weather, with average highs around 68°F and lows near 41°F — a 27°F daily swing. Over 45 years of records, the warmest December 21st was in 2005 (68°F average), while the coldest was 1998 (45°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 9% of December 21st dates historically, with the wettest December 21st recording 1.57" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Corona, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 40° | 57° | — | — |
| 2024 | 72° | 33° | 52° | — | — |
| 2023 | 70° | 54° | 62° | — | — |
| 2022 | 76° | 32° | 54° | — | — |
| 2021 | 67° | 40° | 53° | — | — |
| 2020 | 85° | 37° | 61° | — | — |
| 2019 | 74° | 37° | 55° | — | — |
| 2018 | 71° | 49° | 60° | — | — |
| 2017 | 61° | 46° | 53° | — | — |
| 2016 | 67° | 46° | 56° | 1.12" | — |
| 2015 | 60° | 39° | 50° | 0.1" | — |
| 2014 | 67° | 38° | 52° | — | — |
| 2013 | 61° | 31° | 46° | — | — |
| 2012 | 64° | 36° | 50° | — | — |
| 2011 | 65° | 28° | 47° | — | — |
| 2010 | 56° | 51° | 53° | — | — |
| 2009 | 64° | 49° | 56° | — | — |
| 2008 | 66° | 42° | 54° | — | — |
| 2007 | 61° | 45° | 53° | — | — |
| 2006 | 61° | 35° | 48° | — | — |
| 2005warmest | 87° | 49° | 68° | — | — |
| 2004 | 71° | 48° | 60° | — | — |
| 2003 | 67° | 47° | 57° | — | — |
| 2002 | 59° | 46° | 53° | — | — |
| 2001 | 52° | 43° | 47° | — | — |
| 2000 | 74° | 35° | 54° | — | — |
| 1999 | 75° | 41° | 58° | — | — |
| 1998coldest | 55° | 36° | 45° | — | — |
| 1987 | 69° | 34° | 51° | — | — |
| 1986 | 74° | 42° | 58° | — | — |
| 1985 | 78° | 38° | 58° | — | — |
| 1984 | 60° | 35° | 48° | — | — |
| 1983 | 63° | 40° | 51° | — | — |
| 1982 | 62° | 42° | 52° | — | — |
| 1981 | 67° | 52° | 59° | — | — |
| 1980 | 80° | 37° | 59° | — | — |
| 1979 | 61° | 48° | 54° | 1.57" | — |
| 1978 | 66° | 32° | 49° | — | — |
| 1977 | 65° | 45° | 55° | 0.13" | — |
| 1976 | 73° | 44° | 59° | — | — |
| 1975 | 73° | 34° | 53° | — | — |
| 1974 | 71° | 34° | 52° | — | — |
| 1973 | 65° | 34° | 49° | — | — |
| 1972 | 80° | 46° | 63° | — | — |
| 1971 | 59° | 35° | 47° | — | — |
45 years of data from CORONA CALIFORNIA