Weather on May 20
Santa Maria, CA
55 Years of Data
Avg High
69°F
Avg Low
48°F
Warmest
2003
69°F avg
Coldest
1974
50°F avg
About This Date
May 20th in Santa Maria, CA typically brings mild spring weather, with average highs around 69°F and lows near 48°F. Over 55 years of records, the warmest May 20th was in 2003 (69°F average), while the coldest was 1974 (50°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 20th dates historically. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for May 20th 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 | 72° | 49° | 60° | — | — |
| 2024 | 63° | 50° | 56° | — | — |
| 2023 | 68° | 50° | 59° | — | — |
| 2022 | 70° | 49° | 59° | — | — |
| 2021 | 64° | 40° | 52° | — | — |
| 2020 | 68° | 46° | 57° | — | — |
| 2019 | 68° | 48° | 58° | — | — |
| 2018 | 64° | 53° | 59° | — | — |
| 2017 | 78° | 47° | 62° | — | — |
| 2016 | 64° | 49° | 56° | — | — |
| 2015 | 68° | 53° | 61° | — | — |
| 2014 | 70° | 52° | 61° | 0.03" | — |
| 2013 | 85° | 46° | 65° | — | — |
| 2012 | 78° | 46° | 62° | — | — |
| 2011 | 67° | 49° | 58° | — | — |
| 2010 | 76° | 49° | 62° | — | — |
| 2009 | 68° | 45° | 56° | — | — |
| 2008 | 65° | 48° | 56° | — | — |
| 2007 | 68° | 48° | 58° | — | — |
| 2006 | 76° | 48° | 62° | — | — |
| 2005 | 73° | 54° | 63° | — | — |
| 2004 | 64° | 48° | 56° | — | — |
| 2003warmest | 89° | 48° | 69° | — | — |
| 2002 | 65° | 53° | 59° | 0.15" | — |
| 2001 | 71° | 54° | 62° | — | — |
| 2000 | 78° | 50° | 64° | — | — |
| 1999 | 60° | 44° | 52° | — | — |
| 1998 | 66° | 42° | 54° | — | — |
| 1997 | 73° | 52° | 62° | — | — |
| 1996 | 70° | 48° | 59° | — | — |
| 1995 | 62° | 51° | 57° | — | — |
| 1994 | 68° | 42° | 55° | — | — |
| 1993 | 74° | 54° | 64° | — | — |
| 1992 | 70° | 49° | 59° | — | — |
| 1991 | 61° | 45° | 53° | — | — |
| 1990 | 69° | 47° | 58° | — | — |
| 1989 | 63° | 46° | 54° | — | — |
| 1988 | 83° | 47° | 65° | — | — |
| 1987 | 65° | 52° | 58° | — | — |
| 1986 | 65° | 49° | 57° | — | — |
| 1985 | 65° | 46° | 55° | — | — |
| 1984 | 71° | 47° | 59° | — | — |
| 1983 | 74° | 52° | 63° | — | — |
| 1982 | 70° | 48° | 59° | — | — |
| 1981 | 66° | 46° | 56° | — | — |
| 1980 | 61° | 51° | 56° | — | — |
| 1979 | 72° | 55° | 63° | — | — |
| 1978 | 68° | 51° | 60° | — | — |
| 1977 | 68° | 48° | 58° | — | — |
| 1976 | 67° | 48° | 57° | — | — |
| 1975 | 61° | 44° | 52° | — | — |
| 1974coldest | 66° | 34° | 50° | — | — |
| 1973 | 67° | 50° | 58° | — | — |
| 1972 | 67° | 40° | 53° | — | — |
| 1971 | 60° | 46° | 53° | — | — |
55 years of data from SANTA MARIA PUBLIC AP