Weather on December 6
San Mateo, CA
55 Years of Data
Avg High
59°F
Avg Low
46°F
Warmest
2014
62°F avg
Coldest
2009
45°F avg
About This Date
December 6th in San Mateo, CA typically brings cool winter weather, with average highs around 59°F and lows near 46°F. Over 55 years of records, the warmest December 6th was in 2014 (62°F average), while the coldest was 2009 (45°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 42% of December 6th dates historically, with the wettest December 6th recording 2.9" of rain. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for December 6th in San Mateo, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 46° | 50° | — | — |
| 2024 | 67° | 48° | 57° | — | — |
| 2023 | 64° | 49° | 56° | 0.28" | — |
| 2022 | 56° | 47° | 51° | — | — |
| 2021 | 55° | 50° | 53° | 0.05" | — |
| 2020 | 62° | 46° | 54° | — | — |
| 2019 | 65° | 53° | 59° | 1.24" | — |
| 2018 | 60° | 49° | 54° | 0.03" | — |
| 2017 | 62° | 42° | 52° | — | — |
| 2016 | 56° | 43° | 49° | — | — |
| 2015 | 61° | 52° | 56° | 0.03" | — |
| 2014warmest | 67° | 58° | 62° | 0.23" | — |
| 2013 | 53° | 37° | 45° | 0.74" | — |
| 2012 | 60° | 51° | 56° | — | — |
| 2011 | 54° | 39° | 46° | — | — |
| 2010 | 62° | 50° | 56° | 0.1" | — |
| 2009coldest | 51° | 39° | 45° | 0.84" | — |
| 2008 | 59° | 43° | 51° | — | — |
| 2007 | 54° | 51° | 52° | 0.97" | — |
| 2006 | 62° | 42° | 52° | — | — |
| 2005 | 57° | 38° | 47° | — | — |
| 2004 | 57° | 45° | 51° | 0.76" | — |
| 2003 | 64° | 54° | 59° | 1.09" | — |
| 2002 | 56° | 48° | 52° | 0.15" | — |
| 2001 | 59° | 53° | 56° | 0.03" | — |
| 2000 | 55° | 46° | 51° | — | — |
| 1999 | 57° | 45° | 51° | — | — |
| 1998 | 52° | 41° | 46° | — | — |
| 1997 | 59° | 54° | 56° | 0.23" | — |
| 1996 | 58° | 51° | 54° | — | — |
| 1995 | 64° | 55° | 60° | — | — |
| 1994 | 56° | 45° | 50° | 0.08" | — |
| 1993 | 57° | 44° | 51° | — | — |
| 1992 | 56° | 50° | 53° | 2.44" | — |
| 1991 | 58° | 42° | 50° | 0.03" | — |
| 1990 | 64° | 42° | 53° | — | — |
| 1989 | 65° | 49° | 57° | — | — |
| 1988 | 64° | 48° | 56° | — | — |
| 1987 | 62° | 53° | 58° | 2.9" | — |
| 1986 | 62° | 46° | 54° | — | — |
| 1985 | 58° | 44° | 51° | 0.2" | — |
| 1984 | 64° | 45° | 54° | — | — |
| 1983 | 60° | 48° | 54° | 0.05" | — |
| 1982 | 52° | 50° | 51° | — | — |
| 1981 | 57° | 45° | 51° | — | — |
| 1980 | 57° | 39° | 48° | — | — |
| 1979 | 67° | 43° | 55° | — | — |
| 1978 | 54° | 40° | 47° | — | — |
| 1977 | 62° | 44° | 53° | — | — |
| 1976 | 67° | 38° | 52° | — | — |
| 1975 | 59° | 42° | 51° | — | — |
| 1974 | 60° | 42° | 51° | — | — |
| 1973 | 59° | 41° | 50° | — | — |
| 1972 | 56° | 41° | 48° | 1.68" | — |
| 1971 | 59° | 50° | 55° | 0.08" | — |
55 years of data from BURLINGAME