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° | — | — |
San Francisco, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Francisco, CA Monthly Precipitation
Average rainfall per month, in inches.
San Francisco, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Francisco, CA
Most pleasant months in San Francisco, CA: July, August.