Weather on September 2
San Ramon, CA
55 Years of Data
Avg High
86°F
Avg Low
60°F
Warmest
1998
93°F avg
Coldest
2023
55°F avg
About This Date
September 2nd in San Ramon, CA typically brings warm fall weather, with average highs around 86°F and lows near 60°F — a 26°F daily swing. Over 55 years of records, the warmest September 2nd was in 1998 (93°F average), while the coldest was 2023 (55°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 2nd dates historically. 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 September 2nd in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 74° | 84° | — | — |
| 2024 | 85° | 60° | 72° | — | — |
| 2023coldest | 59° | 52° | 55° | 0.03" | — |
| 2022 | 95° | 76° | 85° | — | — |
| 2021 | 72° | 46° | 59° | — | — |
| 2020 | 76° | 58° | 67° | — | — |
| 2019 | 87° | 68° | 78° | — | — |
| 2018 | 81° | 66° | 73° | — | — |
| 2017 | 100° | 82° | 91° | — | — |
| 2016 | 77° | 57° | 67° | — | — |
| 2015 | 77° | 52° | 64° | — | — |
| 2014 | 90° | 67° | 78° | — | — |
| 2013 | 80° | 60° | 70° | — | — |
| 2012 | 74° | 48° | 61° | — | — |
| 2011 | 85° | 66° | 75° | — | — |
| 2010 | 87° | 69° | 78° | — | — |
| 2009 | 86° | 64° | 75° | — | — |
| 2008 | 82° | 57° | 70° | — | — |
| 2007 | 95° | 61° | 78° | — | — |
| 2006 | 84° | 52° | 68° | — | — |
| 2005 | 82° | 54° | 68° | — | — |
| 2004 | 117° | 62° | 89° | — | — |
| 2003 | 98° | 61° | 79° | — | — |
| 2002 | 102° | 69° | 86° | — | — |
| 2001 | 92° | 61° | 76° | — | — |
| 2000 | 71° | 54° | 62° | — | — |
| 1999 | 80° | 52° | 66° | — | — |
| 1998warmest | 97° | 89° | 93° | — | — |
| 1997 | 84° | 58° | 71° | — | — |
| 1996 | 83° | 52° | 67° | — | — |
| 1995 | 80° | 53° | 67° | — | — |
| 1994 | 70° | 52° | 61° | — | — |
| 1993 | 98° | 65° | 81° | — | — |
| 1992 | 76° | 55° | 65° | — | — |
| 1991 | 100° | 64° | 82° | — | — |
| 1990 | 88° | 52° | 70° | — | — |
| 1989 | 86° | 54° | 70° | — | — |
| 1988 | 94° | 72° | 83° | — | — |
| 1987 | 97° | 75° | 86° | — | — |
| 1986 | 93° | 62° | 78° | — | — |
| 1985 | 79° | 53° | 66° | — | — |
| 1984 | 89° | 66° | 78° | — | — |
| 1983 | 77° | 54° | 65° | — | — |
| 1982 | 90° | 65° | 77° | — | — |
| 1981 | 87° | 58° | 72° | — | — |
| 1980 | 86° | 63° | 74° | — | — |
| 1979 | 75° | 57° | 66° | — | — |
| 1978 | 93° | 59° | 76° | — | — |
| 1977 | 83° | 60° | 71° | — | — |
| 1976 | 96° | 62° | 79° | — | — |
| 1975 | 83° | 48° | 65° | — | — |
| 1974 | 87° | 57° | 72° | — | — |
| 1973 | 85° | 65° | 75° | — | — |
| 1972 | 89° | 56° | 72° | — | — |
| 1971 | 82° | 51° | 67° | — | — |
55 years of data from LIVERMORE CALIFORNIA