Weather on October 20
San Ramon, CA
55 Years of Data
Avg High
74°F
Avg Low
52°F
Warmest
1991
78°F avg
Coldest
2007
49°F avg
About This Date
October 20th in San Ramon, CA typically brings pleasant fall weather, with average highs around 74°F and lows near 52°F. Over 53 years of records, the warmest October 20th was in 1991 (78°F average), while the coldest was 2007 (49°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 13% of October 20th dates historically, with the wettest October 20th recording 1.02" of rain. 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 October 20th in San Ramon, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 58° | 66° | — | — |
| 2024 | 73° | 53° | 63° | — | — |
| 2023 | 88° | 66° | 77° | — | — |
| 2022 | 86° | 67° | 76° | — | — |
| 2021 | 61° | 48° | 54° | 0.05" | — |
| 2020 | 83° | 67° | 75° | — | — |
| 2019 | 61° | 51° | 56° | — | — |
| 2018 | 77° | 61° | 69° | — | — |
| 2017 | 56° | 43° | 49° | 1.02" | — |
| 2016 | 67° | 50° | 58° | — | — |
| 2015 | 72° | 56° | 64° | — | — |
| 2014 | 75° | 53° | 64° | — | — |
| 2013 | 79° | 61° | 70° | — | — |
| 2012 | 72° | 52° | 62° | — | — |
| 2011 | 69° | 48° | 59° | — | — |
| 2010 | 74° | 54° | 64° | — | — |
| 2009 | 53° | 46° | 50° | 0.97" | — |
| 2008 | 72° | 49° | 60° | — | — |
| 2007coldest | 60° | 38° | 49° | 0.13" | — |
| 2006 | 85° | 55° | 70° | — | — |
| 2005 | 75° | 50° | 63° | — | — |
| 2004 | 64° | 49° | 56° | — | — |
| 2003 | 91° | 55° | 73° | — | — |
| 2002 | 80° | 53° | 67° | — | — |
| 2001 | 81° | 50° | 65° | — | — |
| 2000 | 68° | 51° | 60° | — | — |
| 1999 | 85° | 54° | 69° | — | — |
| 1998 | 81° | 56° | 68° | — | — |
| 1997 | 73° | 46° | 60° | — | — |
| 1996 | 65° | 41° | 53° | — | — |
| 1995 | 77° | 53° | 65° | — | — |
| 1994 | 77° | 45° | 61° | — | — |
| 1993 | 81° | 52° | 66° | — | — |
| 1992 | 76° | 56° | 66° | — | — |
| 1991warmest | 89° | 67° | 78° | — | — |
| 1990 | 76° | 51° | 63° | — | — |
| 1989 | 85° | 58° | 71° | — | — |
| 1988 | 83° | 59° | 71° | — | — |
| 1986 | 73° | 49° | 61° | — | — |
| 1985 | 60° | 45° | 52° | — | — |
| 1984 | 62° | 42° | 52° | — | — |
| 1983 | 77° | 55° | 66° | — | — |
| 1982 | 73° | 54° | 63° | — | — |
| 1981 | 79° | 56° | 67° | — | — |
| 1979 | 58° | 44° | 51° | 0.08" | — |
| 1978 | 72° | 45° | 58° | — | — |
| 1977 | 67° | 44° | 55° | — | — |
| 1976 | 82° | 60° | 71° | — | — |
| 1975 | 79° | 58° | 68° | — | — |
| 1974 | 88° | 53° | 70° | — | — |
| 1973 | 84° | 49° | 66° | 0.05" | — |
| 1972 | 58° | 47° | 52° | — | — |
| 1971 | 69° | 48° | 59° | 0.13" | — |
53 years of data from LIVERMORE CALIFORNIA