Weather on May 9
Santa Rosa, CA
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
1992
75°F avg
Coldest
2022
50°F avg
About This Date
May 9th in Santa Rosa, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 55 years of records, the warmest May 9th was in 1992 (75°F average), while the coldest was 2022 (50°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 9% of May 9th dates historically, with the wettest May 9th recording 2.59" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for May 9th in Santa Rosa, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 47° | 68° | — | — |
| 2024 | 86° | 60° | 73° | — | — |
| 2023 | 72° | 46° | 59° | — | — |
| 2022coldest | 61° | 39° | 50° | 0.1" | — |
| 2021 | 90° | 53° | 71° | — | — |
| 2020 | 77° | 39° | 58° | — | — |
| 2019 | 58° | 49° | 53° | — | — |
| 2018 | 78° | 52° | 65° | — | — |
| 2017 | 82° | 50° | 66° | — | — |
| 2016 | 66° | 49° | 57° | — | — |
| 2015 | 69° | 48° | 59° | — | — |
| 2014 | 71° | 51° | 61° | — | — |
| 2013 | 66° | 48° | 57° | — | — |
| 2012 | 83° | 47° | 65° | — | — |
| 2011 | 69° | 40° | 54° | — | — |
| 2010 | 65° | 45° | 55° | 0.81" | — |
| 2009 | 80° | 48° | 64° | — | — |
| 2008 | 73° | 41° | 57° | — | — |
| 2007 | 79° | 48° | 63° | — | — |
| 2006 | 80° | 46° | 63° | — | — |
| 2005 | 62° | 48° | 55° | 2.59" | — |
| 2004 | 76° | 45° | 60° | — | — |
| 2003 | 68° | 38° | 53° | — | — |
| 2002 | 70° | 42° | 56° | — | — |
| 2001 | 86° | 49° | 67° | — | — |
| 2000 | 66° | 49° | 57° | — | — |
| 1999 | 73° | 43° | 58° | — | — |
| 1998 | 68° | 46° | 57° | — | — |
| 1997 | 76° | 46° | 61° | — | — |
| 1996 | 68° | 41° | 55° | — | — |
| 1995 | 62° | 48° | 55° | 0.28" | — |
| 1994 | 66° | 50° | 58° | — | — |
| 1993 | 84° | 51° | 68° | — | — |
| 1992warmest | 89° | 61° | 75° | — | — |
| 1991 | 69° | 45° | 57° | — | — |
| 1990 | 68° | 50° | 59° | — | — |
| 1989 | 63° | 52° | 57° | — | — |
| 1988 | 70° | 48° | 59° | — | — |
| 1987 | 74° | 50° | 62° | — | — |
| 1986 | 77° | 50° | 64° | — | — |
| 1985 | 63° | 39° | 51° | — | — |
| 1984 | 80° | 49° | 64° | — | — |
| 1983 | 70° | 41° | 55° | — | — |
| 1982 | 67° | 43° | 55° | — | — |
| 1981 | 85° | 50° | 67° | — | — |
| 1980 | 60° | 44° | 52° | — | — |
| 1979 | 69° | 41° | 55° | — | — |
| 1978 | 83° | 46° | 64° | — | — |
| 1977 | 69° | 49° | 59° | 0.58" | — |
| 1976 | 70° | 43° | 56° | — | — |
| 1975 | 67° | 45° | 56° | — | — |
| 1974 | 77° | 42° | 60° | — | — |
| 1973 | 78° | 44° | 61° | — | — |
| 1972 | 77° | 40° | 58° | — | — |
| 1971 | 73° | 44° | 59° | — | — |
55 years of data from SANTA ROSA