Weather on August 13
San Ramon, CA
55 Years of Data
Avg High
86°F
Avg Low
60°F
Warmest
2004
93°F avg
Coldest
1988
53°F avg
About This Date
August 13th in San Ramon, CA typically brings warm summer weather, with average highs around 86°F and lows near 60°F — a 26°F daily swing. Over 55 years of records, the warmest August 13th was in 2004 (93°F average), while the coldest was 1988 (53°F) — a 40°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 August 13th in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 63° | 75° | — | — |
| 2024 | 82° | 52° | 67° | — | — |
| 2023 | 85° | 68° | 76° | — | — |
| 2022 | 78° | 61° | 69° | — | — |
| 2021 | 87° | 70° | 78° | — | — |
| 2020 | 88° | 73° | 80° | — | — |
| 2019 | 86° | 66° | 76° | — | — |
| 2018 | 86° | 64° | 75° | — | — |
| 2017 | 83° | 67° | 75° | — | — |
| 2016 | 86° | 67° | 76° | — | — |
| 2015 | 77° | 56° | 66° | — | — |
| 2014 | 76° | 52° | 64° | — | — |
| 2013 | 80° | 64° | 72° | — | — |
| 2012 | 99° | 69° | 84° | — | — |
| 2011 | 81° | 61° | 71° | — | — |
| 2010 | 80° | 70° | 75° | — | — |
| 2009 | 91° | 64° | 78° | — | — |
| 2008 | 94° | 65° | 79° | — | — |
| 2007 | 82° | 55° | 69° | — | — |
| 2006 | 87° | 54° | 70° | — | — |
| 2005 | 73° | 53° | 63° | — | — |
| 2004warmest | 130° | 57° | 93° | — | — |
| 2003 | 91° | 54° | 72° | — | — |
| 2002 | 95° | 60° | 78° | — | — |
| 2001 | 76° | 54° | 65° | — | — |
| 2000 | 92° | 55° | 73° | — | — |
| 1999 | 75° | 55° | 65° | — | — |
| 1998 | 72° | 70° | 71° | — | — |
| 1997 | 86° | 56° | 71° | — | — |
| 1996 | 103° | 71° | 87° | — | — |
| 1995 | 96° | 65° | 80° | — | — |
| 1994 | 97° | 60° | 78° | — | — |
| 1993 | 74° | 56° | 65° | — | — |
| 1992 | 92° | 70° | 81° | — | — |
| 1991 | 94° | 63° | 78° | — | — |
| 1990 | 85° | 54° | 69° | — | — |
| 1989 | 85° | 63° | 74° | — | — |
| 1988coldest | 63° | 44° | 53° | — | — |
| 1987 | 78° | 45° | 61° | — | — |
| 1986 | 89° | 62° | 76° | — | — |
| 1985 | 75° | 48° | 62° | — | — |
| 1984 | 105° | 69° | 87° | — | — |
| 1983 | 95° | 72° | 83° | — | — |
| 1982 | 87° | 60° | 74° | — | — |
| 1981 | 77° | 60° | 69° | — | — |
| 1980 | 92° | 56° | 74° | — | — |
| 1979 | 65° | 47° | 56° | — | — |
| 1978 | 76° | 50° | 63° | — | — |
| 1977 | 86° | 62° | 74° | — | — |
| 1976 | 85° | 49° | 67° | — | — |
| 1975 | 84° | 52° | 68° | — | — |
| 1974 | 85° | 47° | 66° | — | — |
| 1973 | 87° | 63° | 75° | — | — |
| 1972 | 86° | 51° | 69° | — | — |
| 1971 | 80° | 65° | 72° | — | — |
55 years of data from LIVERMORE CALIFORNIA