Weather on December 18
Murrieta, CA
55 Years of Data
Avg High
65°F
Avg Low
42°F
Warmest
2024
70°F avg
Coldest
2008
42°F avg
About This Date
December 18th in Murrieta, CA typically brings mild winter weather, with average highs around 65°F and lows near 42°F. Over 55 years of records, the warmest December 18th was in 2024 (70°F average), while the coldest was 2008 (42°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 7% of December 18th dates historically, with the wettest December 18th recording 1.45" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for December 18th in Murrieta, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 55° | 68° | — | — |
| 2024warmest | 80° | 61° | 70° | — | — |
| 2023 | 70° | 52° | 61° | — | — |
| 2022 | 61° | 42° | 51° | — | — |
| 2021 | 67° | 44° | 55° | — | — |
| 2020 | 65° | 41° | 53° | — | — |
| 2019 | 60° | 41° | 51° | — | — |
| 2018 | 65° | 49° | 57° | — | — |
| 2017 | 68° | 46° | 57° | — | — |
| 2016 | 64° | 32° | 48° | — | — |
| 2015 | 71° | 46° | 59° | — | — |
| 2014 | 58° | 46° | 52° | — | — |
| 2013 | 67° | 48° | 57° | — | — |
| 2012 | 51° | 37° | 44° | — | — |
| 2011 | 53° | 40° | 46° | — | — |
| 2010 | 53° | 51° | 52° | — | — |
| 2009 | 75° | 55° | 65° | — | — |
| 2008coldest | 49° | 35° | 42° | — | — |
| 2007 | 57° | 43° | 50° | — | — |
| 2006 | 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 | 53° | 43° | 48° | — | — |
| 1991 | 58° | 46° | 52° | 0.91" | — |
| 1990 | 59° | 29° | 44° | — | — |
| 1989 | 60° | 34° | 47° | — | — |
| 1988 | 53° | 38° | 45° | — | — |
| 1987 | 62° | 38° | 50° | — | — |
| 1986 | 64° | 39° | 52° | — | — |
| 1985 | 78° | 35° | 57° | — | — |
| 1984 | 53° | 36° | 44° | 1.4" | — |
| 1983 | 64° | 39° | 52° | — | — |
| 1982 | 75° | 33° | 54° | — | — |
| 1981 | 76° | 38° | 57° | — | — |
| 1980 | 75° | 38° | 56° | — | — |
| 1979 | 82° | 29° | 55° | — | — |
| 1978 | 58° | 45° | 51° | 1.45" | — |
| 1977 | 71° | 44° | 58° | 0.51" | — |
| 1976 | 70° | 32° | 51° | — | — |
| 1975 | 72° | 29° | 50° | — | — |
| 1974 | 73° | 33° | 53° | — | — |
| 1973 | 72° | 38° | 55° | — | — |
| 1972 | 70° | 36° | 53° | — | — |
| 1971 | 67° | 22° | 44° | — | — |
55 years of data from SANTA ROSA PLATEAU CALIFORNIA