Weather on December 9
San Francisco, CA
55 Years of Data
About This Date
December 9th in San Francisco, CA typically brings cool winter weather, with average highs around 59°F and lows near 48°F. Over 55 years of records, the warmest December 9th was in 1992 (60°F average), while the coldest was 1972 (34°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 9th dates historically, with the wettest December 9th recording 2.97" 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 December 9th in San Francisco, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 51° | 44° | 48° | — | — |
| 2024 | 63° | 47° | 55° | — | — |
| 2023 | 58° | 46° | 52° | — | — |
| 2022 | 55° | 45° | 50° | — | — |
| 2021 | 57° | 50° | 54° | 0.03" | — |
| 2020 | 65° | 49° | 57° | — | — |
| 2019 | 56° | 50° | 53° | — | — |
| 2018 | 53° | 48° | 51° | — | — |
| 2017 | 65° | 49° | 57° | — | — |
| 2016 | 64° | 56° | 60° | 0.3" | — |
| 2015 | 64° | 55° | 60° | 0.03" | — |
| 2014 | 63° | 58° | 60° | 0.03" | — |
| 2013 | 51° | 36° | 43° | — | — |
| 2012 | 66° | 48° | 57° | — | — |
| 2011 | 60° | 45° | 52° | — | — |
| 2010 | 63° | 55° | 59° | 0.03" | — |
| 2009 | 46° | 38° | 42° | — | — |
| 2008 | 58° | 45° | 51° | — | — |
| 2007 | 58° | 45° | 51° | — | — |
| 2006 | 62° | 52° | 57° | 1.47" | — |
| 2005 | 68° | 50° | 59° | — | — |
| 2004 | 62° | 53° | 58° | — | — |
| 2003 | 56° | 48° | 52° | 0.79" | — |
| 2002 | 57° | 51° | 54° | 1.52" | — |
| 2001 | 60° | 47° | 53° | — | — |
| 2000 | 57° | 51° | 54° | — | — |
| 1999 | 53° | 47° | 50° | 1.14" | — |
| 1998 | 60° | 44° | 52° | — | — |
| 1997 | 60° | 43° | 51° | — | — |
| 1996 | 61° | 55° | 58° | 1.6" | — |
| 1995 | 60° | 52° | 56° | — | — |
| 1994 | 55° | 42° | 49° | — | — |
| 1993 | 62° | 53° | 58° | 0.1" | — |
| 1992warmest | 63° | 58° | 60° | 2.97" | — |
| 1991 | 67° | 46° | 56° | — | — |
| 1990 | 67° | 47° | 57° | — | — |
| 1989 | 65° | 49° | 57° | — | — |
| 1988 | 68° | 50° | 59° | — | — |
| 1987 | 63° | 55° | 59° | 0.33" | — |
| 1986 | 63° | 46° | 54° | — | — |
| 1985 | 60° | 45° | 52° | — | — |
| 1984 | 65° | 53° | 59° | 1.17" | — |
| 1983 | 58° | 53° | 55° | 1.73" | — |
| 1982 | 64° | 50° | 57° | — | — |
| 1981 | 60° | 48° | 54° | 0.13" | — |
| 1980 | 57° | 45° | 51° | — | — |
| 1979 | 60° | 53° | 57° | — | — |
| 1978 | 52° | 43° | 47° | — | — |
| 1977 | 58° | 48° | 53° | — | — |
| 1976 | 63° | 51° | 57° | — | — |
| 1975 | 60° | 47° | 53° | — | — |
| 1974 | 53° | 44° | 49° | — | — |
| 1973 | 54° | 44° | 49° | — | — |
| 1972coldest | 37° | 30° | 34° | — | — |
| 1971 | 55° | 43° | 49° | 0.89" | — |