Weather on May 1
San Mateo, CA
55 Years of Data
Avg High
68°F
Avg Low
50°F
Warmest
2014
74°F avg
Coldest
1975
52°F avg
About This Date
May 1st in San Mateo, CA typically brings mild spring weather, with average highs around 68°F and lows near 50°F. Over 55 years of records, the warmest May 1st was in 2014 (74°F average), while the coldest was 1975 (52°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 1st dates historically, with the wettest May 1st recording 0.51" 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 1st in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 50° | 57° | — | — |
| 2024 | 72° | 49° | 60° | — | — |
| 2023 | 59° | 52° | 55° | 0.03" | — |
| 2022 | 67° | 49° | 58° | — | — |
| 2021 | 61° | 53° | 57° | — | — |
| 2020 | 69° | 52° | 60° | — | — |
| 2019 | 71° | 49° | 60° | — | — |
| 2018 | 67° | 50° | 58° | — | — |
| 2017 | 84° | 54° | 69° | — | — |
| 2016 | 80° | 54° | 67° | — | — |
| 2015 | 75° | 54° | 64° | — | — |
| 2014warmest | 86° | 62° | 74° | — | — |
| 2013 | 78° | 55° | 67° | — | — |
| 2012 | 59° | 49° | 54° | — | — |
| 2011 | 76° | 47° | 61° | — | — |
| 2010 | 65° | 48° | 56° | — | — |
| 2009 | 61° | 51° | 56° | 0.51" | — |
| 2008 | 66° | 44° | 55° | — | — |
| 2007 | 63° | 50° | 56° | — | — |
| 2006 | 69° | 50° | 60° | — | — |
| 2005 | 69° | 53° | 61° | — | — |
| 2004 | 76° | 50° | 63° | — | — |
| 2003 | 69° | 52° | 60° | — | — |
| 2002 | 61° | 50° | 55° | — | — |
| 2001 | 65° | 50° | 57° | — | — |
| 2000 | 65° | 50° | 57° | — | — |
| 1999 | 57° | 49° | 53° | — | — |
| 1998 | 66° | 57° | 62° | 0.1" | — |
| 1997 | 66° | 47° | 56° | — | — |
| 1996 | 86° | 57° | 72° | — | — |
| 1995 | 65° | 54° | 59° | 0.41" | — |
| 1994 | 59° | 50° | 55° | — | — |
| 1993 | 80° | 51° | 66° | — | — |
| 1992 | 73° | 50° | 62° | — | — |
| 1991 | 59° | 47° | 53° | 0.08" | — |
| 1990 | 81° | 53° | 67° | — | — |
| 1989 | 71° | 50° | 61° | — | — |
| 1988 | 63° | 44° | 53° | — | — |
| 1987 | 63° | 53° | 58° | 0.1" | — |
| 1986 | 66° | 47° | 56° | — | — |
| 1985 | 63° | 48° | 55° | — | — |
| 1984 | 69° | 51° | 60° | — | — |
| 1983 | 61° | 44° | 52° | — | — |
| 1982 | 58° | 48° | 53° | — | — |
| 1981 | 65° | 50° | 57° | — | — |
| 1980 | 69° | 50° | 60° | — | — |
| 1979 | 63° | 52° | 57° | — | — |
| 1978 | 76° | 48° | 62° | — | — |
| 1977 | 72° | 54° | 63° | — | — |
| 1976 | 73° | 40° | 56° | — | — |
| 1975coldest | 60° | 44° | 52° | — | — |
| 1974 | 60° | 49° | 54° | — | — |
| 1973 | 65° | 44° | 54° | — | — |
| 1972 | 78° | 45° | 61° | — | — |
| 1971 | 61° | 49° | 55° | — | — |
55 years of data from BURLINGAME