Weather on December 21
Santa Clarita, CA
55 Years of Data
Avg High
64°F
Avg Low
41°F
Warmest
1994
69°F avg
Coldest
1990
35°F avg
About This Date
December 21st in Santa Clarita, CA typically brings mild winter weather, with average highs around 64°F and lows near 41°F. Over 51 years of records, the warmest December 21st was in 1994 (69°F average), while the coldest was 1990 (35°F) — a 34°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Santa Clarita, CA? Great weather for outdoor activities.
Warming Trend
1.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 48° | 61° | — | — |
| 2024 | 71° | 47° | 59° | — | — |
| 2023 | 57° | 52° | 54° | — | — |
| 2022 | 71° | 50° | 61° | — | — |
| 2021 | 63° | 46° | 54° | — | — |
| 2020 | 80° | 53° | 67° | — | — |
| 2019 | 66° | 48° | 57° | — | — |
| 2018 | 73° | 50° | 62° | — | — |
| 2017 | 55° | 40° | 47° | — | — |
| 2016 | 58° | 40° | 49° | — | — |
| 2015 | 60° | 36° | 48° | — | — |
| 2014 | 68° | 52° | 60° | — | — |
| 2013 | 61° | 37° | 49° | — | — |
| 2012 | 66° | 36° | 51° | — | — |
| 2011 | 68° | 38° | 53° | — | — |
| 2010 | 52° | 46° | 49° | — | — |
| 2009 | 59° | 46° | 53° | — | — |
| 2008 | 68° | 44° | 56° | — | — |
| 2007 | 53° | 40° | 46° | — | — |
| 2006 | 63° | 35° | 49° | — | — |
| 2005 | 83° | 54° | 68° | — | — |
| 2004 | 69° | 41° | 55° | — | — |
| 2003 | 67° | 44° | 55° | — | — |
| 2002 | 53° | 41° | 47° | — | — |
| 2001 | 59° | 40° | 49° | — | — |
| 2000 | 76° | 46° | 61° | — | — |
| 1999 | 78° | 52° | 65° | — | — |
| 1998 | 45° | 32° | 38° | — | — |
| 1997 | 51° | 38° | 44° | — | — |
| 1996 | 54° | 43° | 48° | — | — |
| 1995 | 66° | 34° | 50° | — | — |
| 1994warmest | 69° | 68° | 69° | — | — |
| 1993 | 61° | 40° | 50° | — | — |
| 1992 | 60° | 37° | 49° | — | — |
| 1991 | 65° | 44° | 54° | — | — |
| 1990coldest | 44° | 26° | 35° | — | — |
| 1989 | 68° | 28° | 48° | — | — |
| 1987 | 60° | 28° | 44° | — | — |
| 1986 | 65° | 36° | 50° | — | — |
| 1985 | 77° | 39° | 58° | — | — |
| 1983 | 59° | 31° | 45° | — | — |
| 1982 | 72° | 39° | 55° | — | — |
| 1980 | 76° | 34° | 55° | — | — |
| 1978 | 53° | 33° | 43° | — | — |
| 1977 | 57° | 40° | 48° | — | — |
| 1976 | 70° | 32° | 51° | — | — |
| 1975 | 70° | 30° | 50° | — | — |
| 1974 | 73° | 35° | 54° | — | — |
| 1973 | 64° | 35° | 50° | — | — |
| 1972 | 72° | 42° | 57° | — | — |
| 1971 | 60° | 24° | 42° | — | — |
51 years of data from SAUGUS CALIFORNIA