Weather on December 18
Santa Maria, CA
55 Years of Data
Avg High
63°F
Avg Low
40°F
Warmest
2023
62°F avg
Coldest
1992
43°F avg
About This Date
December 18th in Santa Maria, CA typically brings mild winter weather, with average highs around 63°F and lows near 40°F. Over 55 years of records, the warmest December 18th was in 2023 (62°F average), while the coldest was 1992 (43°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 24% of December 18th dates historically, with the wettest December 18th recording 8.1" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for December 18th in Santa Maria, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 48° | 60° | — | — |
| 2024 | 80° | 41° | 61° | — | — |
| 2023warmest | 68° | 56° | 62° | 0.13" | — |
| 2022 | 61° | 33° | 47° | — | — |
| 2021 | 62° | 33° | 48° | — | — |
| 2020 | 67° | 39° | 53° | — | — |
| 2019 | 61° | 44° | 52° | 0.1" | — |
| 2018 | 68° | 47° | 57° | — | — |
| 2017 | 73° | 36° | 54° | — | — |
| 2016 | 58° | 27° | 43° | — | — |
| 2015 | 64° | 36° | 50° | — | — |
| 2014 | 65° | 50° | 57° | — | — |
| 2013 | 60° | 50° | 55° | — | — |
| 2012 | 56° | 37° | 46° | 0.25" | — |
| 2011 | 59° | 36° | 47° | — | — |
| 2010 | 59° | 55° | 57° | 8.1" | — |
| 2009 | 73° | 47° | 60° | — | — |
| 2008 | 55° | 31° | 43° | — | — |
| 2007 | 58° | 54° | 56° | 4.11" | — |
| 2006 | 61° | 32° | 46° | — | — |
| 2005 | 63° | 50° | 56° | 0.05" | — |
| 2004 | 73° | 32° | 53° | — | — |
| 2003 | 70° | 37° | 53° | — | — |
| 2002 | 57° | 36° | 46° | 0.03" | — |
| 2001 | 60° | 39° | 50° | — | — |
| 2000 | 76° | 37° | 56° | — | — |
| 1999 | 73° | 43° | 58° | — | — |
| 1998 | 54° | 39° | 46° | — | — |
| 1997 | 54° | 48° | 51° | 1.22" | — |
| 1996 | 62° | 38° | 50° | — | — |
| 1995 | 62° | 37° | 50° | 0.08" | — |
| 1994 | 68° | 37° | 53° | — | — |
| 1993 | 55° | 40° | 47° | 0.05" | — |
| 1992coldest | 53° | 32° | 43° | — | — |
| 1991 | 62° | 49° | 55° | — | — |
| 1990 | 59° | 32° | 46° | — | — |
| 1989 | 58° | 40° | 49° | — | — |
| 1988 | 55° | 43° | 49° | 0.03" | — |
| 1987 | 60° | 35° | 48° | — | — |
| 1986 | 64° | 40° | 52° | — | — |
| 1985 | 79° | 35° | 57° | — | — |
| 1984 | 56° | 43° | 49° | 1.42" | — |
| 1983 | 66° | 38° | 52° | — | — |
| 1982 | 66° | 35° | 51° | — | — |
| 1981 | 62° | 41° | 52° | — | — |
| 1980 | 59° | 43° | 51° | — | — |
| 1979 | 72° | 33° | 52° | — | — |
| 1978 | 53° | 42° | 48° | 1.45" | — |
| 1977 | 58° | 42° | 50° | — | — |
| 1976 | 67° | 36° | 51° | — | — |
| 1975 | 67° | 30° | 48° | — | — |
| 1974 | 65° | 35° | 50° | — | — |
| 1973 | 68° | 40° | 54° | — | — |
| 1972 | 69° | 43° | 56° | — | — |
| 1971 | 66° | 31° | 48° | — | — |
55 years of data from SANTA MARIA PUBLIC AP