Weather on May 21
Santa Maria, CA
55 Years of Data
Avg High
68°F
Avg Low
48°F
Warmest
2005
70°F avg
Coldest
1971
51°F avg
About This Date
May 21st in Santa Maria, CA typically brings mild spring weather, with average highs around 68°F and lows near 48°F. Over 55 years of records, the warmest May 21st was in 2005 (70°F average), while the coldest was 1971 (51°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 9% of May 21st dates historically, with the wettest May 21st recording 3.28" of rain. The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for May 21st 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 | 75° | 48° | 62° | — | — |
| 2024 | 65° | 51° | 58° | — | — |
| 2023 | 68° | 51° | 60° | — | — |
| 2022 | 75° | 46° | 61° | — | — |
| 2021 | 60° | 43° | 51° | — | — |
| 2020 | 75° | 46° | 61° | — | — |
| 2019 | 67° | 50° | 58° | 0.03" | — |
| 2018 | 62° | 49° | 55° | — | — |
| 2017 | 76° | 49° | 62° | — | — |
| 2016 | 67° | 43° | 55° | — | — |
| 2015 | 69° | 50° | 60° | — | — |
| 2014 | 66° | 55° | 61° | — | — |
| 2013 | 77° | 46° | 62° | — | — |
| 2012 | 67° | 47° | 57° | — | — |
| 2011 | 68° | 48° | 58° | — | — |
| 2010 | 64° | 45° | 54° | — | — |
| 2009 | 66° | 45° | 55° | — | — |
| 2008 | 64° | 46° | 55° | — | — |
| 2007 | 67° | 48° | 57° | — | — |
| 2006 | 70° | 56° | 63° | 3.28" | — |
| 2005warmest | 88° | 53° | 70° | — | — |
| 2004 | 65° | 51° | 58° | — | — |
| 2003 | 72° | 49° | 60° | — | — |
| 2002 | 64° | 46° | 55° | 0.03" | — |
| 2001 | 75° | 53° | 64° | — | — |
| 2000 | 85° | 49° | 67° | — | — |
| 1999 | 64° | 42° | 53° | — | — |
| 1998 | 65° | 42° | 53° | — | — |
| 1997 | 70° | 53° | 61° | — | — |
| 1996 | 73° | 46° | 60° | 0.05" | — |
| 1995 | 63° | 51° | 57° | — | — |
| 1994 | 70° | 42° | 56° | — | — |
| 1993 | 70° | 52° | 61° | — | — |
| 1992 | 68° | 46° | 57° | — | — |
| 1991 | 65° | 48° | 56° | — | — |
| 1990 | 70° | 53° | 61° | — | — |
| 1989 | 66° | 47° | 56° | — | — |
| 1988 | 81° | 51° | 66° | — | — |
| 1987 | 67° | 45° | 56° | — | — |
| 1986 | 67° | 49° | 58° | — | — |
| 1985 | 69° | 44° | 57° | — | — |
| 1984 | 70° | 46° | 58° | — | — |
| 1983 | 66° | 56° | 61° | — | — |
| 1982 | 62° | 51° | 57° | — | — |
| 1981 | 66° | 44° | 55° | — | — |
| 1980 | 61° | 54° | 57° | 0.18" | — |
| 1979 | 65° | 54° | 59° | — | — |
| 1978 | 67° | 46° | 56° | — | — |
| 1977 | 65° | 49° | 57° | — | — |
| 1976 | 66° | 46° | 56° | — | — |
| 1975 | 66° | 38° | 52° | — | — |
| 1974 | 69° | 37° | 53° | — | — |
| 1973 | 66° | 50° | 58° | — | — |
| 1972 | 68° | 40° | 54° | — | — |
| 1971coldest | 60° | 42° | 51° | — | — |
55 years of data from SANTA MARIA PUBLIC AP