Weather on August 12
San Ramon, CA
55 Years of Data
Avg High
86°F
Avg Low
60°F
Warmest
2004
99°F avg
Coldest
1988
57°F avg
About This Date
August 12th 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 12th was in 2004 (99°F average), while the coldest was 1988 (57°F) — a 42°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.6°F cooler on this date compared to 20-30 years ago.
Planning for August 12th in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 69° | 78° | — | — |
| 2024 | 80° | 52° | 66° | — | — |
| 2023 | 79° | 62° | 70° | — | — |
| 2022 | 78° | 61° | 69° | — | — |
| 2021 | 89° | 71° | 80° | — | — |
| 2020 | 80° | 67° | 73° | — | — |
| 2019 | 80° | 64° | 72° | — | — |
| 2018 | 87° | 69° | 78° | — | — |
| 2017 | 85° | 63° | 74° | — | — |
| 2016 | 84° | 62° | 73° | — | — |
| 2015 | 75° | 56° | 65° | — | — |
| 2014 | 84° | 55° | 70° | — | — |
| 2013 | 79° | 60° | 69° | — | — |
| 2012 | 97° | 69° | 83° | — | — |
| 2011 | 76° | 61° | 68° | — | — |
| 2010 | 71° | 49° | 60° | — | — |
| 2009 | 83° | 65° | 74° | — | — |
| 2008 | 94° | 62° | 78° | — | — |
| 2007 | 79° | 51° | 65° | — | — |
| 2006 | 85° | 53° | 69° | — | — |
| 2005 | 97° | 54° | 75° | — | — |
| 2004warmest | 138° | 59° | 99° | — | — |
| 2003 | 87° | 55° | 71° | — | — |
| 2002 | 99° | 57° | 78° | — | — |
| 2001 | 74° | 54° | 64° | — | — |
| 2000 | 94° | 60° | 77° | — | — |
| 1999 | 75° | 55° | 65° | — | — |
| 1998 | 74° | 73° | 73° | — | — |
| 1997 | 87° | 58° | 72° | — | — |
| 1996 | 104° | 67° | 85° | — | — |
| 1995 | 95° | 58° | 76° | — | — |
| 1994 | 92° | 59° | 75° | — | — |
| 1993 | 80° | 54° | 67° | — | — |
| 1992 | 96° | 74° | 85° | — | — |
| 1991 | 85° | 57° | 71° | — | — |
| 1990 | 85° | 57° | 71° | — | — |
| 1989 | 85° | 60° | 72° | — | — |
| 1988coldest | 70° | 45° | 57° | — | — |
| 1987 | 78° | 50° | 64° | — | — |
| 1986 | 90° | 66° | 78° | — | — |
| 1985 | 86° | 54° | 70° | — | — |
| 1984 | 85° | 65° | 75° | — | — |
| 1983 | 87° | 62° | 75° | — | — |
| 1982 | 74° | 56° | 65° | — | — |
| 1981 | 79° | 51° | 65° | — | — |
| 1980 | 92° | 64° | 78° | — | — |
| 1979 | 89° | 47° | 68° | — | — |
| 1978 | 90° | 61° | 75° | — | — |
| 1977 | 92° | 67° | 79° | — | — |
| 1976 | 83° | 58° | 70° | — | — |
| 1975 | 89° | 61° | 75° | — | — |
| 1974 | 83° | 51° | 67° | — | — |
| 1973 | 89° | 65° | 77° | — | — |
| 1972 | 88° | 61° | 74° | — | — |
| 1971 | 92° | 66° | 79° | — | — |
55 years of data from LIVERMORE CALIFORNIA