Weather on September 26
San Ramon, CA
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
1975
85°F avg
Coldest
1986
53°F avg
About This Date
September 26th in San Ramon, CA typically brings warm fall weather, with average highs around 80°F and lows near 57°F. Over 55 years of records, the warmest September 26th was in 1975 (85°F average), while the coldest was 1986 (53°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 11% of September 26th dates historically, with the wettest September 26th recording 0.64" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for September 26th in San Ramon, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 59° | 76° | — | — |
| 2024 | 73° | 49° | 61° | — | — |
| 2023 | 66° | 56° | 61° | 0.03" | — |
| 2022 | 83° | 68° | 75° | 0.03" | — |
| 2021 | 80° | 51° | 66° | — | — |
| 2020 | 75° | 52° | 63° | — | — |
| 2019 | 89° | 66° | 78° | — | — |
| 2018 | 86° | 70° | 78° | — | — |
| 2017 | 78° | 63° | 70° | — | — |
| 2016 | 89° | 70° | 79° | — | — |
| 2015 | 97° | 72° | 84° | — | — |
| 2014 | 65° | 50° | 57° | — | — |
| 2013 | 63° | 46° | 54° | — | — |
| 2012 | 83° | 66° | 74° | — | — |
| 2011 | 60° | 50° | 55° | 0.15" | — |
| 2010 | 90° | 74° | 82° | — | — |
| 2009 | 93° | 75° | 84° | — | — |
| 2008 | 85° | 66° | 75° | — | — |
| 2007 | 79° | 51° | 65° | — | — |
| 2006 | 84° | 56° | 70° | — | — |
| 2005 | 86° | 55° | 71° | — | — |
| 2004 | 92° | 58° | 75° | — | — |
| 2003 | 83° | 55° | 69° | — | — |
| 2002 | 77° | 53° | 65° | — | — |
| 2001 | 78° | 54° | 66° | — | — |
| 2000 | 86° | 56° | 71° | — | — |
| 1999 | 94° | 65° | 79° | — | — |
| 1998 | 60° | 51° | 56° | — | — |
| 1997 | 76° | 57° | 66° | — | — |
| 1996 | 81° | 50° | 65° | — | — |
| 1995 | 79° | 53° | 66° | — | — |
| 1994 | 93° | 55° | 74° | — | — |
| 1993 | 94° | 61° | 77° | — | — |
| 1992 | 91° | 65° | 78° | — | — |
| 1991 | 73° | 54° | 63° | — | — |
| 1990 | 76° | 57° | 66° | — | — |
| 1989 | 73° | 50° | 62° | — | — |
| 1988 | 62° | 44° | 53° | — | — |
| 1987 | 75° | 52° | 63° | — | — |
| 1986coldest | 59° | 46° | 53° | 0.38" | — |
| 1985 | 87° | 56° | 71° | — | — |
| 1984 | 81° | 62° | 71° | — | — |
| 1983 | 78° | 53° | 66° | — | — |
| 1982 | 63° | 45° | 54° | 0.56" | — |
| 1981 | 68° | 56° | 62° | — | — |
| 1980 | 90° | 47° | 68° | — | — |
| 1979 | 74° | 51° | 62° | — | — |
| 1978 | 96° | 68° | 82° | — | — |
| 1977 | 82° | 57° | 70° | — | — |
| 1976 | 83° | 51° | 67° | — | — |
| 1975warmest | 97° | 73° | 85° | — | — |
| 1974 | 93° | 56° | 74° | — | — |
| 1973 | 80° | 48° | 64° | — | — |
| 1972 | 73° | 53° | 63° | 0.64" | — |
| 1971 | 66° | 46° | 56° | — | — |
55 years of data from LIVERMORE CALIFORNIA