Weather on September 4
San Ramon, CA
55 Years of Data
Avg High
85°F
Avg Low
61°F
Warmest
1988
90°F avg
Coldest
2016
56°F avg
About This Date
September 4th in San Ramon, CA typically brings warm fall weather, with average highs around 85°F and lows near 61°F. Over 55 years of records, the warmest September 4th was in 1988 (90°F average), while the coldest was 2016 (56°F) — a 34°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for September 4th in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 85° | 66° | 75° | — | — |
| 2024 | 92° | 58° | 75° | — | — |
| 2023 | 65° | 54° | 59° | — | — |
| 2022 | 91° | 75° | 83° | — | — |
| 2021 | 81° | 65° | 73° | — | — |
| 2020 | 84° | 69° | 77° | — | — |
| 2019 | 84° | 71° | 78° | — | — |
| 2018 | 82° | 69° | 76° | — | — |
| 2017 | 97° | 76° | 86° | — | — |
| 2016coldest | 66° | 47° | 56° | — | — |
| 2015 | 66° | 48° | 57° | — | — |
| 2014 | 85° | 64° | 74° | — | — |
| 2013 | 73° | 53° | 63° | — | — |
| 2012 | 88° | 67° | 77° | — | — |
| 2011 | 84° | 66° | 75° | — | — |
| 2010 | 89° | 64° | 77° | — | — |
| 2009 | 90° | 65° | 77° | — | — |
| 2008 | 85° | 73° | 79° | — | — |
| 2007 | 90° | 50° | 70° | — | — |
| 2006 | 84° | 52° | 68° | — | — |
| 2005 | 77° | 51° | 64° | — | — |
| 2004 | 94° | 68° | 81° | — | — |
| 2003 | 80° | 58° | 69° | — | — |
| 2002 | 83° | 56° | 69° | — | — |
| 2001 | 87° | 55° | 71° | — | — |
| 2000 | 73° | 51° | 62° | — | — |
| 1999 | 87° | 53° | 70° | — | — |
| 1998 | 93° | 72° | 82° | — | — |
| 1997 | 98° | 63° | 80° | — | — |
| 1996 | 74° | 53° | 63° | — | — |
| 1995 | 80° | 53° | 67° | — | — |
| 1994 | 93° | 56° | 74° | — | — |
| 1993 | 77° | 56° | 66° | — | — |
| 1992 | 82° | 53° | 68° | — | — |
| 1991 | 98° | 61° | 79° | — | — |
| 1990 | 82° | 56° | 69° | — | — |
| 1989 | 90° | 62° | 76° | — | — |
| 1988warmest | 100° | 80° | 90° | — | — |
| 1987 | 89° | 58° | 73° | — | — |
| 1986 | 87° | 66° | 77° | — | — |
| 1985 | 79° | 48° | 63° | — | — |
| 1984 | 91° | 70° | 80° | — | — |
| 1983 | 87° | 70° | 78° | — | — |
| 1982 | 82° | 56° | 69° | — | — |
| 1981 | 81° | 61° | 71° | — | — |
| 1980 | 81° | 61° | 71° | — | — |
| 1979 | 79° | 53° | 66° | — | — |
| 1978 | 82° | 57° | 70° | — | — |
| 1977 | 93° | 64° | 79° | — | — |
| 1976 | 92° | 70° | 81° | — | — |
| 1975 | 93° | 65° | 79° | — | — |
| 1974 | 86° | 62° | 74° | — | — |
| 1973 | 80° | 48° | 64° | — | — |
| 1972 | 83° | 58° | 70° | — | — |
| 1971 | 88° | 54° | 71° | — | — |
55 years of data from LIVERMORE CALIFORNIA