Weather on December 20
Temecula, CA
55 Years of Data
Avg High
67°F
Avg Low
42°F
Warmest
1994
68°F avg
Coldest
1975
38°F avg
About This Date
December 20th in Temecula, CA typically brings mild winter weather, with average highs around 67°F and lows near 42°F — a 25°F daily swing. Over 52 years of records, the warmest December 20th was in 1994 (68°F average), while the coldest was 1975 (38°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 12% of December 20th dates historically, with the wettest December 20th recording 5.47" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in Temecula, CA? Great weather for outdoor activities.
Warming Trend
2.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 45° | 55° | — | — |
| 2024 | 78° | 54° | 66° | — | — |
| 2023 | 69° | 54° | 61° | 0.92" | — |
| 2022 | 70° | 46° | 58° | — | — |
| 2021 | 71° | 41° | 56° | — | — |
| 2020 | 86° | 49° | 67° | — | — |
| 2019 | 76° | 48° | 62° | — | — |
| 2018 | 80° | 53° | 66° | — | — |
| 2017 | 64° | 45° | 54° | 0.04" | — |
| 2016 | 77° | 52° | 64° | — | — |
| 2015 | 59° | 44° | 52° | — | — |
| 2014 | 63° | 47° | 55° | — | — |
| 2013 | 62° | 40° | 51° | — | — |
| 2012 | 67° | 43° | 55° | — | — |
| 2011 | 65° | 45° | 55° | — | — |
| 2010 | 58° | 51° | 54° | 5.47" | — |
| 2009 | 70° | 52° | 61° | — | — |
| 2008 | 62° | 37° | 49° | — | — |
| 2007 | 51° | 43° | 47° | — | — |
| 2006 | 60° | 35° | 48° | — | — |
| 2005 | 75° | 55° | 65° | — | — |
| 2004 | 67° | 49° | 58° | — | — |
| 2003 | 61° | 49° | 55° | — | — |
| 2002 | 50° | 42° | 46° | — | — |
| 2001 | 56° | 42° | 49° | — | — |
| 2000 | 73° | 52° | 62° | — | — |
| 1999 | 78° | 57° | 68° | — | — |
| 1998 | 73° | 47° | 60° | — | — |
| 1997 | 64° | 44° | 54° | — | — |
| 1996 | 66° | 48° | 57° | — | — |
| 1995 | 60° | 43° | 51° | — | — |
| 1994warmest | 82° | 53° | 68° | — | — |
| 1993 | 61° | 53° | 57° | — | — |
| 1992 | 70° | 40° | 55° | — | — |
| 1990 | 54° | 37° | 45° | — | — |
| 1989 | 68° | 32° | 50° | — | — |
| 1988 | 59° | 44° | 52° | — | — |
| 1987 | 58° | 32° | 45° | 1.04" | — |
| 1986 | 62° | 44° | 53° | — | — |
| 1985 | 75° | 34° | 54° | — | — |
| 1984 | 60° | 36° | 48° | 1.27" | — |
| 1983 | 72° | 46° | 59° | — | — |
| 1982 | 72° | 28° | 50° | — | — |
| 1981 | 72° | 35° | 53° | — | — |
| 1980 | 77° | 40° | 58° | — | — |
| 1979 | 72° | 28° | 50° | — | — |
| 1978 | 65° | 28° | 46° | 0.08" | — |
| 1977 | 63° | 32° | 47° | — | — |
| 1976 | 71° | 33° | 52° | — | — |
| 1975coldest | 51° | 24° | 38° | — | — |
| 1974 | 74° | 32° | 53° | — | — |
| 1973 | 68° | 25° | 46° | — | — |
52 years of data from FALLBROOK 5 NE