Weather on August 31
San Ramon, CA
55 Years of Data
Avg High
86°F
Avg Low
59°F
Warmest
2004
99°F avg
Coldest
1992
57°F avg
About This Date
August 31st in San Ramon, CA typically brings warm summer weather, with average highs around 86°F and lows near 59°F — a 27°F daily swing. Over 55 years of records, the warmest August 31st was in 2004 (99°F average), while the coldest was 1992 (57°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 31st dates historically. 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 31st in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 78° | 86° | — | — |
| 2024 | 95° | 65° | 80° | — | — |
| 2023 | 90° | 72° | 81° | — | — |
| 2022 | 84° | 69° | 77° | — | — |
| 2021 | 91° | 64° | 78° | — | — |
| 2020 | 83° | 70° | 76° | — | — |
| 2019 | 83° | 60° | 71° | — | — |
| 2018 | 76° | 52° | 64° | — | — |
| 2017 | 87° | 66° | 77° | — | — |
| 2016 | 81° | 58° | 69° | — | — |
| 2015 | 74° | 53° | 63° | — | — |
| 2014 | 86° | 59° | 73° | — | — |
| 2013 | 88° | 66° | 77° | — | — |
| 2012 | 84° | 48° | 66° | — | — |
| 2011 | 76° | 59° | 67° | — | — |
| 2010 | 72° | 52° | 62° | — | — |
| 2009 | 83° | 62° | 72° | — | — |
| 2008 | 88° | 43° | 65° | — | — |
| 2007 | 96° | 69° | 83° | — | — |
| 2006 | 97° | 60° | 78° | — | — |
| 2005 | 99° | 62° | 80° | — | — |
| 2004warmest | 138° | 60° | 99° | — | — |
| 2003 | 93° | 54° | 73° | — | — |
| 2002 | 99° | 57° | 78° | — | — |
| 2001 | 84° | 54° | 69° | — | — |
| 2000 | 72° | 57° | 64° | — | — |
| 1999 | 77° | 53° | 65° | — | — |
| 1998 | 95° | 71° | 83° | — | — |
| 1997 | 80° | 58° | 69° | — | — |
| 1996 | 91° | 57° | 74° | — | — |
| 1995 | 88° | 50° | 69° | — | — |
| 1994 | 81° | 54° | 67° | — | — |
| 1993 | 82° | 54° | 68° | — | — |
| 1992coldest | 66° | 49° | 57° | — | — |
| 1991 | 78° | 57° | 68° | — | — |
| 1990 | 84° | 56° | 70° | — | — |
| 1989 | 78° | 52° | 65° | — | — |
| 1988 | 99° | 65° | 82° | — | — |
| 1987 | 98° | 66° | 82° | — | — |
| 1986 | 85° | 63° | 74° | — | — |
| 1985 | 88° | 62° | 75° | — | — |
| 1984 | 72° | 54° | 63° | 0.28" | — |
| 1983 | 78° | 54° | 66° | — | — |
| 1982 | 83° | 59° | 71° | — | — |
| 1981 | 85° | 58° | 71° | — | — |
| 1980 | 76° | 49° | 62° | — | — |
| 1979 | 73° | 55° | 64° | — | — |
| 1978 | 79° | 52° | 65° | — | — |
| 1977 | 95° | 65° | 80° | — | — |
| 1976 | 101° | 73° | 87° | — | — |
| 1975 | 80° | 53° | 67° | — | — |
| 1974 | 76° | 52° | 64° | — | — |
| 1973 | 85° | 47° | 66° | — | — |
| 1972 | 97° | 74° | 85° | — | — |
| 1971 | 77° | 49° | 63° | — | — |
55 years of data from LIVERMORE CALIFORNIA