Weather on May 1
San Ramon, CA
55 Years of Data
Avg High
70°F
Avg Low
47°F
Warmest
1981
75°F avg
Coldest
1988
43°F avg
About This Date
May 1st in San Ramon, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 47°F. Over 54 years of records, the warmest May 1st was in 1981 (75°F average), while the coldest was 1988 (43°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 6% of May 1st dates historically, with the wettest May 1st recording 1.35" of rain. The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.9°F cooler on this date compared to 20-30 years ago.
Planning for May 1st in San Ramon, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 72° | 55° | 63° | — | — |
| 2024 | 72° | 47° | 59° | — | — |
| 2023 | 58° | 40° | 49° | — | — |
| 2022 | 65° | 40° | 52° | — | — |
| 2021 | 75° | 44° | 60° | — | — |
| 2020 | 70° | 47° | 58° | — | — |
| 2019 | 62° | 48° | 55° | — | — |
| 2018 | 65° | 40° | 52° | — | — |
| 2017 | 76° | 52° | 64° | — | — |
| 2016 | 69° | 53° | 61° | — | — |
| 2015 | 82° | 62° | 72° | — | — |
| 2014 | 82° | 65° | 73° | — | — |
| 2013 | 77° | 56° | 66° | — | — |
| 2012 | 74° | 43° | 58° | — | — |
| 2011 | 67° | 49° | 58° | — | — |
| 2010 | 63° | 42° | 52° | — | — |
| 2009 | 66° | 49° | 57° | — | — |
| 2008 | 61° | 33° | 47° | — | — |
| 2007 | 71° | 45° | 58° | — | — |
| 2006 | 87° | 53° | 70° | — | — |
| 2005 | 72° | 50° | 61° | — | — |
| 2004 | 87° | 51° | 69° | — | — |
| 2003 | 74° | 48° | 61° | — | — |
| 2002 | 65° | 46° | 55° | — | — |
| 2001 | 77° | 49° | 63° | — | — |
| 2000 | 72° | 47° | 59° | — | — |
| 1999 | 62° | 47° | 54° | — | — |
| 1998 | 64° | 54° | 59° | — | — |
| 1997 | 70° | 43° | 56° | — | — |
| 1996 | 90° | 61° | 75° | — | — |
| 1995 | 63° | 53° | 58° | — | — |
| 1994 | 62° | 44° | 53° | — | — |
| 1993 | 83° | 57° | 70° | — | — |
| 1992 | 77° | 46° | 62° | — | — |
| 1991 | 48° | 40° | 44° | — | — |
| 1990 | 72° | 52° | 62° | — | — |
| 1989 | 60° | 47° | 53° | — | — |
| 1988coldest | 56° | 31° | 43° | — | — |
| 1986 | 69° | 41° | 55° | — | — |
| 1985 | 80° | 52° | 66° | — | — |
| 1984 | 58° | 43° | 50° | — | — |
| 1983 | 52° | 40° | 46° | 0.58" | — |
| 1982 | 68° | 38° | 53° | — | — |
| 1981warmest | 88° | 62° | 75° | — | — |
| 1980 | 75° | 44° | 60° | — | — |
| 1979 | 64° | 43° | 53° | — | — |
| 1978 | 57° | 44° | 51° | 0.13" | — |
| 1977 | 69° | 47° | 58° | 1.35" | — |
| 1976 | 80° | 43° | 61° | — | — |
| 1975 | 72° | 52° | 62° | — | — |
| 1974 | 70° | 40° | 55° | — | — |
| 1973 | 73° | 38° | 55° | — | — |
| 1972 | 73° | 52° | 62° | — | — |
| 1971 | 73° | 41° | 57° | — | — |
54 years of data from LIVERMORE CALIFORNIA