Weather on December 1
San Mateo, CA
55 Years of Data
Avg High
60°F
Avg Low
46°F
Warmest
2012
61°F avg
Coldest
2010
46°F avg
About This Date
December 1st in San Mateo, CA typically brings mild winter weather, with average highs around 60°F and lows near 46°F. Over 55 years of records, the warmest December 1st was in 2012 (61°F average), while the coldest was 2010 (46°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 29% of December 1st dates historically, with the wettest December 1st recording 4.01" of rain. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
Planning for December 1st in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 53° | 46° | 50° | — | — |
| 2024 | 64° | 51° | 58° | — | — |
| 2023 | 62° | 49° | 55° | — | — |
| 2022 | 54° | 44° | 49° | 1.8" | — |
| 2021 | 70° | 49° | 59° | — | — |
| 2020 | 62° | 44° | 53° | — | — |
| 2019 | 59° | 54° | 56° | 0.64" | — |
| 2018 | 59° | 49° | 54° | 0.23" | — |
| 2017 | 60° | 46° | 53° | — | — |
| 2016 | 60° | 44° | 52° | — | — |
| 2015 | 56° | 43° | 49° | — | — |
| 2014 | 64° | 57° | 61° | — | — |
| 2013 | 67° | 46° | 56° | — | — |
| 2012warmest | 64° | 58° | 61° | 2.08" | — |
| 2011 | 63° | 56° | 59° | — | — |
| 2010coldest | 54° | 39° | 46° | — | — |
| 2009 | 60° | 44° | 52° | — | — |
| 2008 | 56° | 49° | 52° | — | — |
| 2007 | 54° | 44° | 49° | — | — |
| 2006 | 60° | 40° | 50° | — | — |
| 2005 | 61° | 50° | 55° | 2.51" | — |
| 2004 | 57° | 39° | 48° | — | — |
| 2003 | 59° | 52° | 55° | 0.66" | — |
| 2002 | 62° | 51° | 57° | — | — |
| 2001 | 56° | 50° | 53° | 3.63" | — |
| 2000 | 58° | 44° | 51° | — | — |
| 1999 | 58° | 48° | 53° | 0.05" | — |
| 1998 | 58° | 46° | 52° | — | — |
| 1997 | 61° | 45° | 53° | — | — |
| 1996 | 58° | 46° | 52° | 0.48" | — |
| 1995 | 63° | 52° | 57° | 0.03" | — |
| 1994 | 60° | 48° | 54° | 0.05" | — |
| 1993 | 60° | 42° | 51° | — | — |
| 1992 | 64° | 43° | 53° | — | — |
| 1991 | 63° | 47° | 55° | — | — |
| 1990 | 60° | 40° | 50° | — | — |
| 1989 | 65° | 44° | 54° | — | — |
| 1988 | 63° | 44° | 53° | — | — |
| 1987 | 64° | 54° | 59° | 0.56" | — |
| 1986 | 64° | 40° | 52° | — | — |
| 1985 | 54° | 43° | 48° | 0.61" | — |
| 1984 | 57° | 45° | 51° | — | — |
| 1983 | 58° | 45° | 51° | — | — |
| 1982 | 55° | 44° | 50° | 0.03" | — |
| 1981 | 60° | 46° | 53° | — | — |
| 1980 | 56° | 42° | 49° | — | — |
| 1979 | 57° | 44° | 51° | — | — |
| 1978 | 57° | 51° | 54° | 0.46" | — |
| 1977 | 68° | 44° | 56° | — | — |
| 1976 | 63° | 42° | 52° | — | — |
| 1975 | 58° | 41° | 49° | — | — |
| 1974 | 58° | 39° | 48° | — | — |
| 1973 | 57° | 49° | 53° | 4.01" | — |
| 1972 | 58° | 41° | 49° | — | — |
| 1971 | 59° | 39° | 49° | — | — |
55 years of data from BURLINGAME