Weather on March 18
San Ramon, CA
55 Years of Data
Avg High
62°F
Avg Low
43°F
Warmest
2004
71°F avg
Coldest
2012
37°F avg
About This Date
March 18th in San Ramon, CA typically brings mild spring weather, with average highs around 62°F and lows near 43°F. Over 55 years of records, the warmest March 18th was in 2004 (71°F average), while the coldest was 2012 (37°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 22% of March 18th dates historically, with the wettest March 18th recording 0.71" of rain. The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 7.2°F cooler on this date compared to 20-30 years ago.
Planning for March 18th in San Ramon, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 88° | 52° | 70° | — | — |
| 2025 | 50° | 34° | 42° | 0.43" | — |
| 2024 | 67° | 43° | 55° | — | — |
| 2023 | 60° | 41° | 51° | — | — |
| 2022 | 63° | 47° | 55° | — | — |
| 2021 | 52° | 39° | 45° | — | — |
| 2020 | 46° | 36° | 41° | 0.25" | — |
| 2019 | 67° | 54° | 60° | — | — |
| 2018 | 46° | 33° | 40° | 0.25" | — |
| 2017 | 70° | 52° | 61° | — | — |
| 2016 | 71° | 48° | 60° | — | — |
| 2015 | 67° | 46° | 56° | — | — |
| 2014 | 62° | 45° | 53° | — | — |
| 2013 | 65° | 45° | 55° | — | — |
| 2012coldest | 41° | 33° | 37° | 0.18" | — |
| 2011 | 54° | 35° | 44° | — | — |
| 2010 | 68° | 55° | 62° | — | — |
| 2009 | 61° | 46° | 53° | — | — |
| 2008 | 67° | 40° | 53° | — | — |
| 2007 | 70° | 47° | 58° | — | — |
| 2006 | 60° | 39° | 50° | — | — |
| 2005 | 60° | 51° | 56° | — | — |
| 2004warmest | 88° | 55° | 71° | — | — |
| 2003 | 64° | 42° | 53° | — | — |
| 2002 | 63° | 39° | 51° | — | — |
| 2001 | 79° | 49° | 64° | — | — |
| 2000 | 76° | 47° | 61° | — | — |
| 1999 | 61° | 43° | 52° | — | — |
| 1998 | 73° | 46° | 60° | — | — |
| 1997 | 75° | 48° | 62° | — | — |
| 1996 | 82° | 55° | 69° | — | — |
| 1995 | 62° | 48° | 55° | — | — |
| 1994 | 63° | 47° | 55° | — | — |
| 1993 | 63° | 50° | 56° | — | — |
| 1992 | 61° | 42° | 51° | — | — |
| 1991 | 53° | 40° | 46° | — | — |
| 1990 | 67° | 46° | 56° | — | — |
| 1989 | 57° | 37° | 47° | 0.08" | — |
| 1987 | 64° | 34° | 49° | 0.13" | — |
| 1986 | 61° | 45° | 53° | — | — |
| 1985 | 50° | 37° | 44° | 0.41" | — |
| 1984 | 57° | 41° | 49° | — | — |
| 1983 | 50° | 39° | 45° | 0.66" | — |
| 1982 | 42° | 34° | 38° | 0.71" | — |
| 1981 | 61° | 45° | 53° | 0.05" | — |
| 1980 | 56° | 35° | 45° | — | — |
| 1979 | 55° | 36° | 45° | 0.15" | — |
| 1978 | 76° | 63° | 69° | — | — |
| 1977 | 51° | 38° | 44° | — | — |
| 1976 | 73° | 43° | 58° | 0.03" | — |
| 1975 | 49° | 40° | 44° | — | — |
| 1974 | 69° | 39° | 54° | — | — |
| 1973 | 49° | 40° | 44° | — | — |
| 1972 | 68° | 46° | 57° | — | — |
| 1971 | 61° | 39° | 50° | — | — |
55 years of data from LIVERMORE CALIFORNIA