Weather on March 15
San Ramon, CA
55 Years of Data
Avg High
60°F
Avg Low
43°F
Warmest
2015
70°F avg
Coldest
1982
39°F avg
About This Date
March 15th in San Ramon, CA typically brings mild spring weather, with average highs around 60°F and lows near 43°F. Over 55 years of records, the warmest March 15th was in 2015 (70°F average), while the coldest was 1982 (39°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 29% of March 15th dates historically, with the wettest March 15th recording 1.96" of rain. The last decade has been 7.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.4°F cooler on this date compared to 20-30 years ago.
Planning for March 15th in San Ramon, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 45° | 63° | — | — |
| 2025 | 49° | 42° | 45° | — | — |
| 2024 | 62° | 47° | 54° | — | — |
| 2023 | 54° | 34° | 44° | 0.38" | — |
| 2022 | 65° | 48° | 56° | 0.2" | — |
| 2021 | 49° | 32° | 40° | 0.58" | — |
| 2020 | 41° | 38° | 39° | 1.96" | — |
| 2019 | 59° | 43° | 51° | — | — |
| 2018 | 46° | 32° | 39° | 0.33" | — |
| 2017 | 76° | 47° | 61° | — | — |
| 2016 | 59° | 40° | 49° | — | — |
| 2015warmest | 79° | 62° | 70° | — | — |
| 2014 | 69° | 51° | 60° | — | — |
| 2013 | 68° | 53° | 61° | — | — |
| 2012 | 49° | 47° | 48° | 1.22" | — |
| 2011 | 55° | 48° | 52° | 0.05" | — |
| 2010 | 58° | 43° | 50° | — | — |
| 2009 | 46° | 36° | 41° | 0.03" | — |
| 2008 | 51° | 28° | 40° | 0.03" | — |
| 2007 | 83° | 46° | 64° | — | — |
| 2006 | 55° | 42° | 49° | — | — |
| 2005 | 75° | 46° | 61° | — | — |
| 2004 | 81° | 57° | 69° | — | — |
| 2003 | 62° | 46° | 54° | — | — |
| 2002 | 53° | 40° | 46° | — | — |
| 2001 | 58° | 44° | 51° | — | — |
| 2000 | 75° | 47° | 61° | — | — |
| 1999 | 57° | 43° | 50° | — | — |
| 1998 | 68° | 50° | 59° | — | — |
| 1997 | 66° | 47° | 56° | — | — |
| 1996 | 72° | 46° | 59° | — | — |
| 1995 | 65° | 42° | 53° | — | — |
| 1994 | 65° | 47° | 56° | — | — |
| 1993 | 63° | 50° | 56° | — | — |
| 1992 | 58° | 49° | 53° | — | — |
| 1991 | 54° | 34° | 44° | — | — |
| 1990 | 54° | 37° | 45° | — | — |
| 1989 | 60° | 35° | 48° | — | — |
| 1987 | 46° | 33° | 40° | 0.81" | — |
| 1986 | 47° | 36° | 41° | 1.07" | — |
| 1985 | 67° | 45° | 56° | — | — |
| 1984 | 52° | 42° | 47° | 0.28" | — |
| 1983 | 59° | 40° | 49° | — | — |
| 1982coldest | 47° | 32° | 39° | 0.89" | — |
| 1981 | 54° | 43° | 48° | — | — |
| 1980 | 51° | 36° | 43° | 0.51" | — |
| 1979 | 53° | 44° | 49° | — | — |
| 1978 | 68° | 43° | 55° | — | — |
| 1977 | 54° | 33° | 43° | 0.1" | — |
| 1976 | 72° | 43° | 57° | — | — |
| 1975 | 56° | 31° | 43° | — | — |
| 1974 | 69° | 39° | 54° | — | — |
| 1973 | 65° | 46° | 55° | — | — |
| 1972 | 72° | 52° | 62° | — | — |
| 1971 | 44° | 38° | 41° | 0.41" | — |
55 years of data from LIVERMORE CALIFORNIA