Weather on May 31
San Mateo, CA
55 Years of Data
Avg High
71°F
Avg Low
53°F
Warmest
2001
77°F avg
Coldest
1971
55°F avg
About This Date
May 31st in San Mateo, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 53°F. Over 55 years of records, the warmest May 31st was in 2001 (77°F average), while the coldest was 1971 (55°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 31st dates historically. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for May 31st in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 54° | 64° | — | — |
| 2024 | 73° | 55° | 64° | — | — |
| 2023 | 65° | 54° | 59° | — | — |
| 2022 | 76° | 50° | 63° | — | — |
| 2021 | 76° | 52° | 64° | — | — |
| 2020 | 67° | 55° | 61° | — | — |
| 2019 | 67° | 52° | 59° | — | — |
| 2018 | 64° | 53° | 59° | — | — |
| 2017 | 70° | 54° | 62° | — | — |
| 2016 | 73° | 53° | 63° | — | — |
| 2015 | 67° | 53° | 60° | — | — |
| 2014 | 68° | 52° | 60° | — | — |
| 2013 | 74° | 50° | 62° | — | — |
| 2012 | 78° | 51° | 65° | — | — |
| 2011 | 60° | 54° | 57° | 0.18" | — |
| 2010 | 67° | 55° | 61° | — | — |
| 2009 | 63° | 53° | 58° | — | — |
| 2008 | 58° | 52° | 55° | — | — |
| 2007 | 67° | 52° | 59° | — | — |
| 2006 | 67° | 53° | 60° | — | — |
| 2005 | 70° | 55° | 62° | — | — |
| 2004 | 70° | 53° | 61° | — | — |
| 2003 | 65° | 51° | 58° | — | — |
| 2002 | 74° | 54° | 64° | — | — |
| 2001warmest | 91° | 63° | 77° | — | — |
| 2000 | 74° | 49° | 61° | — | — |
| 1999 | 67° | 52° | 59° | — | — |
| 1998 | 66° | 53° | 60° | — | — |
| 1997 | 82° | 64° | 73° | — | — |
| 1996 | 69° | 50° | 60° | — | — |
| 1995 | 71° | 50° | 61° | — | — |
| 1994 | 70° | 54° | 62° | — | — |
| 1993 | 73° | 58° | 65° | 0.03" | — |
| 1992 | 72° | 53° | 62° | — | — |
| 1991 | 73° | 49° | 61° | — | — |
| 1990 | 64° | 53° | 59° | — | — |
| 1989 | 85° | 48° | 66° | — | — |
| 1988 | 67° | 53° | 60° | — | — |
| 1987 | 68° | 54° | 61° | — | — |
| 1986 | 66° | 54° | 60° | — | — |
| 1985 | 65° | 53° | 59° | — | — |
| 1984 | 77° | 50° | 64° | — | — |
| 1983 | 63° | 53° | 58° | — | — |
| 1982 | 62° | 52° | 57° | — | — |
| 1981 | 79° | 50° | 64° | — | — |
| 1980 | 69° | 49° | 59° | — | — |
| 1979 | 75° | 52° | 63° | — | — |
| 1978 | 92° | 58° | 75° | — | — |
| 1977 | 75° | 47° | 61° | — | — |
| 1976 | 68° | 55° | 62° | — | — |
| 1975 | 76° | 55° | 65° | — | — |
| 1974 | — | 45° | — | — | — |
| 1973 | 69° | 54° | 61° | — | — |
| 1972 | 68° | 51° | 60° | — | — |
| 1971coldest | 63° | 47° | 55° | — | — |
55 years of data from BURLINGAME