Weather on December 15
San Francisco, CA
55 Years of Data
About This Date
December 15th in San Francisco, CA typically brings cool winter weather, with average highs around 58°F and lows near 47°F. Over 55 years of records, the warmest December 15th was in 1980 (61°F average), while the coldest was 1972 (39°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 31% of December 15th dates historically, with the wettest December 15th recording 3.33" of rain. The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.0°F cooler on this date compared to 20-30 years ago.
Planning for December 15th 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 | 54° | 42° | 48° | — | — |
| 2024 | 53° | 46° | 50° | — | — |
| 2023 | 62° | 49° | 55° | — | — |
| 2022 | 59° | 45° | 52° | — | — |
| 2021 | 53° | 44° | 49° | 1.27" | — |
| 2020 | 57° | 47° | 52° | — | — |
| 2019 | 56° | 48° | 52° | — | — |
| 2018 | 62° | 53° | 58° | — | — |
| 2017 | 60° | 50° | 55° | — | — |
| 2016 | 59° | 50° | 55° | 3.33" | — |
| 2015 | 57° | 45° | 51° | — | — |
| 2014 | 55° | 50° | 53° | 3.12" | — |
| 2013 | 59° | 44° | 52° | — | — |
| 2012 | 49° | 45° | 47° | 0.41" | — |
| 2011 | 53° | 47° | 50° | 0.2" | — |
| 2010 | 54° | 47° | 50° | — | — |
| 2009 | 58° | 49° | 53° | — | — |
| 2008 | 51° | 43° | 47° | 0.48" | — |
| 2007 | 55° | 45° | 50° | — | — |
| 2006 | 57° | 47° | 52° | 0.51" | — |
| 2005 | 61° | 46° | 53° | — | — |
| 2004 | 64° | 49° | 56° | — | — |
| 2003 | 58° | 43° | 50° | — | — |
| 2002 | 60° | 55° | 58° | 1.07" | — |
| 2001 | 60° | 43° | 51° | — | — |
| 2000 | 60° | 50° | 55° | 0.08" | — |
| 1999 | 59° | 43° | 51° | — | — |
| 1998 | 65° | 46° | 55° | — | — |
| 1997 | 58° | 45° | 51° | — | — |
| 1996 | 66° | 47° | 56° | — | — |
| 1995 | 60° | 53° | 57° | 0.97" | — |
| 1994 | 54° | 46° | 50° | — | — |
| 1993 | 58° | 43° | 50° | — | — |
| 1992 | 61° | 45° | 53° | — | — |
| 1991 | 56° | 42° | 49° | — | — |
| 1990 | 53° | 45° | 49° | 2.97" | — |
| 1989 | 62° | 45° | 53° | — | — |
| 1988 | 61° | 49° | 55° | — | — |
| 1987 | 53° | 44° | 49° | 0.36" | — |
| 1986 | 53° | 47° | 50° | 0.66" | — |
| 1985 | 53° | 46° | 50° | — | — |
| 1984 | 54° | 45° | 49° | 1.22" | — |
| 1983 | 60° | 51° | 56° | — | — |
| 1982 | 57° | 50° | 54° | — | — |
| 1981 | 62° | 53° | 58° | 0.13" | — |
| 1980warmest | 71° | 50° | 61° | — | — |
| 1979 | 62° | 50° | 56° | — | — |
| 1978 | 62° | 47° | 54° | — | — |
| 1977 | 60° | 52° | 56° | 0.2" | — |
| 1976 | 66° | 48° | 57° | — | — |
| 1975 | 54° | 43° | 48° | — | — |
| 1974 | 60° | 51° | 56° | — | — |
| 1973 | 56° | 46° | 51° | — | — |
| 1972coldest | 42° | 36° | 39° | 0.43" | — |
| 1971 | 52° | 42° | 47° | — | — |