Weather on May 12
San Ramon, CA
55 Years of Data
Avg High
72°F
Avg Low
48°F
Warmest
1996
77°F avg
Coldest
1977
45°F avg
About This Date
May 12th in San Ramon, CA typically brings pleasant spring weather, with average highs around 72°F and lows near 48°F. Over 55 years of records, the warmest May 12th was in 1996 (77°F average), while the coldest was 1977 (45°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 5% of May 12th dates historically, with the wettest May 12th recording 1.88" of rain. The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for May 12th in San Ramon, CA? Great weather for outdoor activities.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 44° | 53° | 0.43" | — |
| 2024 | 82° | 35° | 59° | — | — |
| 2023 | 63° | 45° | 54° | — | — |
| 2022 | 60° | 37° | 49° | — | — |
| 2021 | 83° | 65° | 74° | — | — |
| 2020 | 65° | 46° | 55° | 1.88" | — |
| 2019 | 71° | 52° | 61° | — | — |
| 2018 | 70° | 49° | 59° | — | — |
| 2017 | 61° | 45° | 53° | — | — |
| 2016 | 75° | 58° | 66° | — | — |
| 2015 | 56° | 39° | 47° | — | — |
| 2014 | 72° | 47° | 59° | — | — |
| 2013 | 85° | 65° | 75° | — | — |
| 2012 | 81° | 63° | 72° | — | — |
| 2011 | 59° | 41° | 50° | — | — |
| 2010 | 60° | 47° | 53° | — | — |
| 2009 | 74° | 44° | 59° | — | — |
| 2008 | 67° | 46° | 56° | — | — |
| 2007 | 64° | 46° | 55° | — | — |
| 2006 | 84° | 51° | 68° | — | — |
| 2005 | 81° | 48° | 64° | — | — |
| 2004 | 76° | 47° | 61° | — | — |
| 2003 | 82° | 46° | 64° | — | — |
| 2002 | 83° | 50° | 66° | — | — |
| 2001 | 67° | 51° | 59° | — | — |
| 2000 | 72° | 43° | 57° | — | — |
| 1999 | 63° | 44° | 53° | — | — |
| 1998 | 57° | 46° | 52° | — | — |
| 1997 | 86° | 50° | 68° | — | — |
| 1996warmest | 93° | 61° | 77° | — | — |
| 1995 | 60° | 45° | 52° | — | — |
| 1994 | 70° | 50° | 60° | — | — |
| 1993 | 64° | 41° | 53° | — | — |
| 1992 | 77° | 50° | 64° | — | — |
| 1991 | 59° | 48° | 54° | — | — |
| 1990 | 47° | 47° | 47° | — | — |
| 1989 | 63° | 40° | 51° | — | — |
| 1988 | 87° | 52° | 69° | — | — |
| 1987 | 90° | 59° | 74° | — | — |
| 1986 | 69° | 49° | 59° | — | — |
| 1985 | 64° | 40° | 52° | — | — |
| 1984 | 77° | 54° | 65° | — | — |
| 1983 | 71° | 43° | 57° | — | — |
| 1982 | 67° | 40° | 53° | — | — |
| 1981 | 81° | 58° | 69° | — | — |
| 1980 | 50° | 43° | 46° | — | — |
| 1979 | 80° | 57° | 69° | — | — |
| 1978 | 68° | 47° | 57° | — | — |
| 1977coldest | 50° | 39° | 45° | 0.36" | — |
| 1976 | 86° | 60° | 73° | — | — |
| 1975 | 74° | 47° | 60° | — | — |
| 1974 | 80° | 42° | 61° | — | — |
| 1973 | 89° | 44° | 67° | — | — |
| 1972 | 86° | 43° | 64° | — | — |
| 1971 | 70° | 41° | 55° | — | — |
55 years of data from LIVERMORE CALIFORNIA