Weather on May 18
Santa Maria, CA
55 Years of Data
Avg High
69°F
Avg Low
47°F
Warmest
1978
66°F avg
Coldest
1974
46°F avg
About This Date
May 18th in Santa Maria, CA typically brings mild spring weather, with average highs around 69°F and lows near 47°F. Over 55 years of records, the warmest May 18th was in 1978 (66°F average), while the coldest was 1974 (46°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 7% of May 18th dates historically, with the wettest May 18th recording 0.84" 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 May 18th in Santa Maria, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 47° | 57° | — | — |
| 2024 | 61° | 52° | 56° | — | — |
| 2023 | 67° | 50° | 58° | — | — |
| 2022 | 70° | 47° | 58° | — | — |
| 2021 | 67° | 51° | 59° | — | — |
| 2020 | 71° | 50° | 61° | 0.2" | — |
| 2019 | 68° | 47° | 57° | 0.84" | — |
| 2018 | 66° | 53° | 60° | — | — |
| 2017 | 73° | 42° | 58° | — | — |
| 2016 | 71° | 53° | 62° | — | — |
| 2015 | 66° | 54° | 60° | — | — |
| 2014 | 72° | 49° | 60° | — | — |
| 2013 | 71° | 45° | 58° | — | — |
| 2012 | 65° | 45° | 55° | — | — |
| 2011 | 63° | 46° | 54° | 0.08" | — |
| 2010 | 67° | 51° | 59° | — | — |
| 2009 | 72° | 49° | 60° | — | — |
| 2008 | 77° | 49° | 63° | — | — |
| 2007 | 67° | 45° | 56° | — | — |
| 2006 | 74° | 53° | 63° | — | — |
| 2005 | 73° | 47° | 60° | — | — |
| 2004 | 68° | 46° | 57° | — | — |
| 2003 | 74° | 43° | 58° | — | — |
| 2002 | 64° | 47° | 55° | — | — |
| 2001 | 69° | 50° | 60° | — | — |
| 2000 | 71° | 47° | 59° | — | — |
| 1999 | 70° | 44° | 57° | — | — |
| 1998 | 71° | 47° | 59° | — | — |
| 1997 | 74° | 54° | 64° | — | — |
| 1996 | 73° | 53° | 63° | — | — |
| 1995 | 66° | 50° | 58° | — | — |
| 1994 | 62° | 52° | 57° | 0.1" | — |
| 1993 | 75° | 46° | 61° | — | — |
| 1992 | 70° | 54° | 62° | — | — |
| 1991 | 59° | 37° | 48° | — | — |
| 1990 | 63° | 48° | 55° | — | — |
| 1989 | 67° | 45° | 56° | — | — |
| 1988 | 68° | 47° | 57° | — | — |
| 1987 | 63° | 53° | 58° | — | — |
| 1986 | 73° | 46° | 60° | — | — |
| 1985 | 65° | 44° | 54° | — | — |
| 1984 | 73° | 43° | 58° | — | — |
| 1983 | 80° | 46° | 63° | — | — |
| 1982 | 65° | 38° | 51° | — | — |
| 1981 | 69° | 50° | 60° | — | — |
| 1980 | 66° | 44° | 55° | — | — |
| 1979 | 69° | 51° | 60° | — | — |
| 1978warmest | 88° | 45° | 66° | — | — |
| 1977 | 62° | 39° | 51° | — | — |
| 1976 | 64° | 42° | 53° | — | — |
| 1975 | 65° | 50° | 57° | — | — |
| 1974coldest | 61° | 32° | 46° | — | — |
| 1973 | 71° | 53° | 62° | — | — |
| 1972 | 60° | 46° | 53° | — | — |
| 1971 | 74° | 37° | 55° | — | — |
55 years of data from SANTA MARIA PUBLIC AP