Weather on December 15
Temecula, CA
55 Years of Data
Avg High
68°F
Avg Low
42°F
Warmest
2017
70°F avg
Coldest
1988
45°F avg
About This Date
December 15th in Temecula, CA typically brings mild winter weather, with average highs around 68°F and lows near 42°F — a 26°F daily swing. Over 51 years of records, the warmest December 15th was in 2017 (70°F average), while the coldest was 1988 (45°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 12% of December 15th dates historically, with the wettest December 15th recording 5.25" of rain. The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.1°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in Temecula, CA? Great weather for outdoor activities.
Warming Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 49° | 62° | — | — |
| 2024 | 71° | 42° | 57° | — | — |
| 2023 | 82° | 51° | 67° | — | — |
| 2022 | 64° | 42° | 53° | — | — |
| 2021 | 57° | 39° | 48° | — | — |
| 2020 | 71° | 43° | 57° | — | — |
| 2019 | 62° | 46° | 54° | — | — |
| 2018 | 77° | 52° | 64° | — | — |
| 2017warmest | 83° | 58° | 70° | — | — |
| 2016 | 70° | 51° | 61° | 0.66" | — |
| 2015 | 61° | 37° | 49° | — | — |
| 2014 | 62° | 47° | 54° | — | — |
| 2013 | 82° | 55° | 69° | — | — |
| 2012 | 60° | 44° | 52° | 0.17" | — |
| 2011 | 59° | 41° | 50° | 0.28" | — |
| 2010 | 57° | 48° | 53° | 0.02" | — |
| 2009 | 71° | 46° | 59° | — | — |
| 2008 | 53° | 44° | 48° | 5.25" | — |
| 2007 | 63° | 44° | 53° | — | — |
| 2006 | 67° | 50° | 58° | — | — |
| 2005 | 61° | 44° | 52° | — | — |
| 2004 | 74° | 51° | 62° | — | — |
| 2003 | 65° | 38° | 51° | — | — |
| 2002 | 62° | 49° | 55° | — | — |
| 2001 | 54° | 36° | 45° | — | — |
| 2000 | 63° | 44° | 53° | — | — |
| 1999 | 69° | 47° | 58° | — | — |
| 1998 | 73° | 44° | 59° | — | — |
| 1997 | 64° | 46° | 55° | — | — |
| 1996 | 54° | 51° | 52° | — | — |
| 1995 | 66° | 47° | 56° | — | — |
| 1994 | 60° | 40° | 50° | — | — |
| 1993 | 54° | 51° | 52° | — | — |
| 1992 | 72° | 42° | 57° | — | — |
| 1990 | 59° | 32° | 46° | — | — |
| 1989 | 70° | 36° | 53° | — | — |
| 1988coldest | 55° | 36° | 45° | 0.05" | — |
| 1986 | 69° | 36° | 52° | — | — |
| 1985 | 73° | 34° | 53° | — | — |
| 1984 | 70° | 39° | 54° | — | — |
| 1983 | 76° | 36° | 56° | — | — |
| 1982 | 69° | 25° | 47° | — | — |
| 1981 | 80° | 39° | 60° | — | — |
| 1980 | 85° | 35° | 60° | — | — |
| 1979 | 75° | 25° | 50° | — | — |
| 1978 | 72° | 31° | 51° | — | — |
| 1977 | 68° | 44° | 56° | — | — |
| 1976 | 78° | 32° | 55° | — | — |
| 1975 | 69° | 27° | 48° | — | — |
| 1974 | 70° | 33° | 51° | — | — |
| 1973 | 70° | 28° | 49° | — | — |
51 years of data from FALLBROOK 5 NE