Weather on September 5
San Ramon, CA
55 Years of Data
Avg High
86°F
Avg Low
61°F
Warmest
1988
93°F avg
Coldest
2015
58°F avg
About This Date
September 5th in San Ramon, CA typically brings warm fall weather, with average highs around 86°F and lows near 61°F — a 25°F daily swing. Over 55 years of records, the warmest September 5th was in 1988 (93°F average), while the coldest was 2015 (58°F) — a 35°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for September 5th in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 52° | 64° | — | — |
| 2024 | 93° | 65° | 79° | — | — |
| 2023 | 77° | 61° | 69° | — | — |
| 2022 | 96° | 82° | 89° | — | — |
| 2021 | 86° | 70° | 78° | — | — |
| 2020 | 88° | 73° | 80° | — | — |
| 2019 | 87° | 67° | 77° | — | — |
| 2018 | 85° | 68° | 76° | — | — |
| 2017 | 85° | 63° | 74° | — | — |
| 2016 | 71° | 48° | 60° | — | — |
| 2015coldest | 68° | 49° | 58° | — | — |
| 2014 | 84° | 63° | 73° | — | — |
| 2013 | 75° | 51° | 63° | — | — |
| 2012 | 86° | 66° | 76° | — | — |
| 2011 | 81° | 65° | 73° | — | — |
| 2010 | 86° | 62° | 74° | — | — |
| 2009 | 81° | 48° | 64° | — | — |
| 2008 | 91° | 70° | 80° | — | — |
| 2007 | 74° | 57° | 65° | — | — |
| 2006 | 99° | 53° | 76° | — | — |
| 2005 | 88° | 53° | 70° | — | — |
| 2004 | 101° | 67° | 84° | — | — |
| 2003 | 83° | 54° | 68° | — | — |
| 2002 | 78° | 53° | 66° | — | — |
| 2001 | 78° | 54° | 66° | — | — |
| 2000 | 80° | 48° | 64° | — | — |
| 1999 | 97° | 57° | 77° | — | — |
| 1998 | 91° | 66° | 79° | — | — |
| 1997 | 89° | 58° | 73° | — | — |
| 1996 | 83° | 51° | 67° | — | — |
| 1995 | 92° | 53° | 72° | — | — |
| 1994 | 93° | 62° | 78° | — | — |
| 1993 | 72° | 56° | 64° | — | — |
| 1992 | 85° | 57° | 71° | — | — |
| 1991 | 90° | 60° | 75° | — | — |
| 1990 | 87° | 55° | 71° | — | — |
| 1989 | 89° | 61° | 75° | — | — |
| 1988warmest | 107° | 79° | 93° | — | — |
| 1987 | 75° | 47° | 61° | — | — |
| 1986 | 88° | 72° | 80° | — | — |
| 1985 | 72° | 50° | 61° | — | — |
| 1984 | 94° | 72° | 83° | — | — |
| 1983 | 93° | 73° | 83° | — | — |
| 1982 | 88° | 66° | 77° | — | — |
| 1981 | 85° | 63° | 74° | — | — |
| 1980 | 85° | 64° | 74° | — | — |
| 1979 | 78° | 56° | 67° | — | — |
| 1978 | 80° | 55° | 68° | — | — |
| 1977 | 97° | 67° | 82° | — | — |
| 1976 | 89° | 75° | 82° | — | — |
| 1975 | 100° | 70° | 85° | — | — |
| 1974 | 94° | 62° | 78° | — | — |
| 1973 | 72° | 49° | 60° | — | — |
| 1972 | 85° | 59° | 72° | — | — |
| 1971 | 94° | 63° | 78° | — | — |
55 years of data from LIVERMORE CALIFORNIA