Weather on March 18
Santa Maria, CA
55 Years of Data
Avg High
66°F
Avg Low
43°F
Warmest
2026
74°F avg
Coldest
1991
45°F avg
About This Date
March 18th in Santa Maria, CA typically brings mild spring weather, with average highs around 66°F and lows near 43°F. Over 56 years of records, the warmest March 18th was in 2026 (74°F average), while the coldest was 1991 (45°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 18% of March 18th dates historically, with the wettest March 18th recording 7.98" 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 March 18th in Santa Maria, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 93° | 55° | 74° | — | — |
| 2025 | 62° | 41° | 52° | — | — |
| 2024 | 76° | 43° | 59° | — | — |
| 2023 | 71° | 43° | 57° | — | — |
| 2022 | 70° | 40° | 55° | — | — |
| 2021 | 67° | 44° | 55° | — | — |
| 2020 | 58° | 34° | 46° | — | — |
| 2019 | 72° | 45° | 58° | — | — |
| 2018 | 63° | 35° | 49° | — | — |
| 2017 | 70° | 46° | 58° | — | — |
| 2016 | 64° | 53° | 59° | — | — |
| 2015 | 75° | 50° | 63° | — | — |
| 2014 | 76° | 45° | 60° | — | — |
| 2013 | 66° | 43° | 54° | — | — |
| 2012 | 53° | 41° | 47° | 1.4" | — |
| 2011 | 64° | 34° | 49° | 0.53" | — |
| 2010 | 73° | 43° | 58° | — | — |
| 2009 | 82° | 52° | 67° | — | — |
| 2008 | 62° | 37° | 50° | — | — |
| 2007 | 67° | 53° | 60° | — | — |
| 2006 | 58° | 38° | 48° | — | — |
| 2005 | 55° | 48° | 52° | 0.33" | — |
| 2004 | 72° | 47° | 59° | — | — |
| 2003 | 62° | 37° | 50° | — | — |
| 2002 | 62° | 33° | 48° | — | — |
| 2001 | 78° | 46° | 62° | — | — |
| 2000 | 82° | 50° | 66° | — | — |
| 1999 | 61° | 44° | 52° | — | — |
| 1998 | 72° | 57° | 64° | — | — |
| 1997 | 78° | 38° | 58° | — | — |
| 1996 | 63° | 50° | 56° | — | — |
| 1995 | 67° | 46° | 56° | — | — |
| 1994 | 66° | 45° | 55° | — | — |
| 1993 | 66° | 48° | 57° | — | — |
| 1992 | 68° | 40° | 54° | — | — |
| 1991coldest | 50° | 40° | 45° | 7.98" | — |
| 1990 | 65° | 44° | 54° | — | — |
| 1989 | 65° | 39° | 52° | — | — |
| 1988 | 79° | 38° | 58° | — | — |
| 1987 | 61° | 41° | 51° | — | — |
| 1986 | 68° | 36° | 52° | — | — |
| 1985 | 57° | 41° | 49° | 0.53" | — |
| 1984 | 71° | 43° | 57° | — | — |
| 1983 | 59° | 44° | 52° | 1.27" | — |
| 1982 | 54° | 38° | 46° | 1.35" | — |
| 1981 | 66° | 39° | 53° | 0.05" | — |
| 1980 | 60° | 39° | 50° | 0.15" | — |
| 1979 | 58° | 40° | 49° | 0.43" | — |
| 1978 | 78° | 52° | 65° | — | — |
| 1977 | 61° | 36° | 48° | — | — |
| 1976 | 63° | 47° | 55° | — | — |
| 1975 | 63° | 37° | 50° | — | — |
| 1974 | 56° | 50° | 53° | — | — |
| 1973 | 60° | 34° | 47° | — | — |
| 1972 | 64° | 46° | 55° | — | — |
| 1971 | 70° | 39° | 54° | — | — |
56 years of data from SANTA MARIA PUBLIC AP