Weather on December 18
Temecula, CA
55 Years of Data
Avg High
67°F
Avg Low
43°F
Warmest
2024
73°F avg
Coldest
2006
43°F avg
About This Date
December 18th in Temecula, CA typically brings mild winter weather, with average highs around 67°F and lows near 43°F. Over 52 years of records, the warmest December 18th was in 2024 (73°F average), while the coldest was 2006 (43°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 15% of December 18th dates historically, with the wettest December 18th recording 0.89" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Temecula, CA? Great weather for outdoor activities.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 52° | 69° | — | — |
| 2024warmest | 86° | 60° | 73° | — | — |
| 2023 | 78° | 52° | 65° | 0.16" | — |
| 2022 | 65° | 44° | 54° | — | — |
| 2021 | 71° | 41° | 56° | — | — |
| 2020 | 71° | 43° | 57° | — | — |
| 2019 | 64° | 43° | 54° | — | — |
| 2018 | 70° | 50° | 60° | — | — |
| 2017 | 74° | 47° | 61° | — | — |
| 2016 | 64° | 38° | 51° | — | — |
| 2015 | 76° | 46° | 61° | — | — |
| 2014 | 63° | 48° | 55° | — | — |
| 2013 | 71° | 52° | 62° | — | — |
| 2012 | 54° | 41° | 47° | 0.84" | — |
| 2011 | 57° | 43° | 50° | — | — |
| 2010 | 56° | 54° | 55° | 0.89" | — |
| 2009 | 80° | 53° | 66° | — | — |
| 2008 | 55° | 38° | 46° | 0.13" | — |
| 2007 | 57° | 43° | 50° | — | — |
| 2006coldest | 52° | 35° | 43° | — | — |
| 2005 | 61° | 43° | 52° | — | — |
| 2004 | 75° | 54° | 64° | — | — |
| 2003 | 82° | 54° | 68° | — | — |
| 2002 | 56° | 38° | 47° | — | — |
| 2001 | 71° | 44° | 58° | — | — |
| 2000 | 71° | 54° | 62° | — | — |
| 1999 | 73° | 55° | 64° | — | — |
| 1998 | 54° | 48° | 51° | — | — |
| 1997 | 57° | 45° | 51° | — | — |
| 1996 | 60° | 60° | 60° | — | — |
| 1995 | 62° | 43° | 52° | — | — |
| 1994 | 72° | 48° | 60° | — | — |
| 1993 | 58° | 42° | 50° | — | — |
| 1992 | 63° | 42° | 52° | — | — |
| 1990 | 62° | 28° | 45° | — | — |
| 1989 | 59° | 38° | 48° | — | — |
| 1988 | 61° | 43° | 52° | — | — |
| 1987 | 60° | 33° | 47° | 0.25" | — |
| 1986 | 69° | 36° | 52° | — | — |
| 1985 | 78° | 35° | 57° | — | — |
| 1984 | 52° | 38° | 45° | 0.03" | — |
| 1983 | 71° | 41° | 56° | — | — |
| 1982 | 72° | 24° | 48° | — | — |
| 1981 | 75° | 36° | 55° | — | — |
| 1980 | 74° | 35° | 54° | — | — |
| 1979 | 82° | 29° | 55° | — | — |
| 1978 | 55° | 38° | 46° | 0.51" | — |
| 1977 | 62° | 49° | 55° | 0.28" | — |
| 1976 | 66° | 34° | 50° | — | — |
| 1975 | 70° | 22° | 46° | — | — |
| 1974 | 75° | 30° | 53° | — | — |
| 1973 | 73° | 29° | 51° | — | — |
52 years of data from FALLBROOK 5 NE