Weather on October 17
Santa Rosa, CA
55 Years of Data
Avg High
78°F
Avg Low
47°F
Warmest
1988
76°F avg
Coldest
1984
50°F avg
About This Date
October 17th in Santa Rosa, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 47°F — a 31°F daily swing. Over 55 years of records, the warmest October 17th was in 1988 (76°F average), while the coldest was 1984 (50°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 11% of October 17th dates historically, with the wettest October 17th recording 1.35" 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 17th in Santa Rosa, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 80° | 45° | 62° | — | — |
| 2024 | 76° | 47° | 61° | — | — |
| 2023 | 83° | 53° | 68° | — | — |
| 2022 | 77° | 48° | 63° | — | — |
| 2021 | 63° | 44° | 53° | — | — |
| 2020 | 95° | 50° | 73° | — | — |
| 2019 | 72° | 47° | 59° | — | — |
| 2018 | 80° | 49° | 64° | — | — |
| 2017 | 83° | 43° | 63° | — | — |
| 2016 | 67° | 52° | 59° | — | — |
| 2015 | 72° | 54° | 63° | — | — |
| 2014 | 69° | 53° | 61° | — | — |
| 2013 | 82° | 52° | 67° | — | — |
| 2012 | 92° | 61° | 76° | — | — |
| 2011 | 87° | 51° | 69° | — | — |
| 2010 | 65° | 49° | 57° | 0.48" | — |
| 2009 | 81° | 54° | 67° | — | — |
| 2008 | 90° | 48° | 69° | — | — |
| 2007 | 66° | 44° | 55° | 0.41" | — |
| 2006 | 76° | 43° | 59° | — | — |
| 2005 | 87° | 47° | 67° | — | — |
| 2004 | 63° | 53° | 58° | 0.74" | — |
| 2003 | 85° | 46° | 65° | — | — |
| 2002 | 61° | 49° | 55° | — | — |
| 2001 | 71° | 53° | 62° | — | — |
| 2000 | 80° | 48° | 64° | — | — |
| 1999 | 79° | 44° | 61° | — | — |
| 1998 | 80° | 46° | 63° | — | — |
| 1997 | 85° | 50° | 67° | — | — |
| 1996 | 75° | 43° | 59° | — | — |
| 1995 | 80° | 46° | 63° | — | — |
| 1994 | 74° | 42° | 58° | — | — |
| 1993 | 69° | 48° | 59° | — | — |
| 1992 | 79° | 46° | 62° | — | — |
| 1991 | 86° | 52° | 69° | — | — |
| 1990 | 80° | 46° | 63° | — | — |
| 1989 | 87° | 47° | 67° | — | — |
| 1988warmest | 96° | 56° | 76° | — | — |
| 1987 | 84° | 46° | 65° | — | — |
| 1986 | 63° | 49° | 56° | 0.25" | — |
| 1985 | 71° | 44° | 58° | — | — |
| 1984coldest | 61° | 40° | 50° | 0.05" | — |
| 1983 | 80° | 44° | 62° | — | — |
| 1982 | 78° | 44° | 61° | — | — |
| 1981 | 80° | 40° | 60° | — | — |
| 1980 | 73° | 40° | 56° | — | — |
| 1979 | 79° | 48° | 63° | — | — |
| 1978 | 83° | 46° | 64° | — | — |
| 1977 | 75° | 47° | 61° | — | — |
| 1976 | 88° | 43° | 65° | — | — |
| 1975 | 80° | 46° | 63° | — | — |
| 1974 | 97° | 48° | 72° | — | — |
| 1973 | 87° | 46° | 67° | — | — |
| 1972 | 69° | 53° | 61° | 1.35" | — |
| 1971 | 66° | 36° | 51° | — | — |
55 years of data from SANTA ROSA