Weather on December 9
Temecula, CA
55 Years of Data
Avg High
69°F
Avg Low
43°F
Warmest
2025
70°F avg
Coldest
1983
45°F avg
About This Date
December 9th in Temecula, CA typically brings mild winter weather, with average highs around 69°F and lows near 43°F — a 26°F daily swing. Over 52 years of records, the warmest December 9th was in 2025 (70°F average), while the coldest was 1983 (45°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 2% of December 9th dates historically. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in Temecula, CA? Great weather for outdoor activities.
Warming Trend
1.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 84° | 55° | 70° | — | — |
| 2024 | 70° | 38° | 54° | — | — |
| 2023 | 71° | 52° | 62° | — | — |
| 2022 | 63° | 41° | 52° | — | — |
| 2021 | 56° | 48° | 52° | 0.15" | — |
| 2020 | 78° | 52° | 65° | — | — |
| 2019 | 65° | 47° | 56° | — | — |
| 2018 | 72° | 50° | 61° | — | — |
| 2017 | 81° | 56° | 68° | — | — |
| 2016 | 67° | 47° | 57° | — | — |
| 2015 | 80° | 58° | 69° | — | — |
| 2014 | 79° | 55° | 67° | — | — |
| 2013 | 61° | 37° | 49° | — | — |
| 2012 | 71° | 46° | 58° | — | — |
| 2011 | 74° | 45° | 59° | — | — |
| 2010 | 72° | 49° | 60° | — | — |
| 2009 | 58° | 38° | 48° | — | — |
| 2008 | 70° | 44° | 57° | — | — |
| 2007 | 55° | 38° | 46° | — | — |
| 2006 | 65° | 45° | 55° | — | — |
| 2005 | 70° | 47° | 58° | — | — |
| 2004 | 66° | 48° | 57° | — | — |
| 2003 | 68° | 46° | 57° | — | — |
| 2002 | 66° | 48° | 57° | — | — |
| 2001 | 61° | 40° | 50° | — | — |
| 2000 | 63° | 50° | 56° | — | — |
| 1999 | 64° | 45° | 54° | — | — |
| 1998 | 59° | 43° | 51° | — | — |
| 1997 | 54° | 37° | 45° | — | — |
| 1996 | 58° | 50° | 54° | — | — |
| 1995 | 78° | 54° | 66° | — | — |
| 1994 | 64° | 40° | 52° | — | — |
| 1993 | 62° | 49° | 55° | — | — |
| 1992 | 80° | 45° | 62° | — | — |
| 1990 | 76° | 32° | 54° | — | — |
| 1989 | 77° | 35° | 56° | — | — |
| 1988 | 70° | 53° | 61° | — | — |
| 1987 | 66° | 36° | 51° | — | — |
| 1986 | 78° | 35° | 57° | — | — |
| 1985 | 65° | 35° | 50° | — | — |
| 1984 | 66° | 39° | 53° | — | — |
| 1983coldest | 54° | 37° | 45° | — | — |
| 1982 | 61° | 45° | 53° | — | — |
| 1981 | 79° | 38° | 58° | — | — |
| 1980 | 65° | 29° | 47° | — | — |
| 1979 | 80° | 36° | 58° | — | — |
| 1978 | 68° | 23° | 46° | — | — |
| 1977 | 72° | 35° | 53° | — | — |
| 1976 | 77° | 27° | 52° | — | — |
| 1975 | 83° | 32° | 57° | — | — |
| 1974 | 65° | 36° | 50° | — | — |
| 1973 | 80° | 31° | 55° | — | — |
52 years of data from FALLBROOK 5 NE