Weather on December 4
San Mateo, CA
55 Years of Data
Avg High
59°F
Avg Low
45°F
Warmest
2014
62°F avg
Coldest
1971
45°F avg
About This Date
December 4th in San Mateo, CA typically brings cool winter weather, with average highs around 59°F and lows near 45°F. Over 55 years of records, the warmest December 4th was in 2014 (62°F average), while the coldest was 1971 (45°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 35% of December 4th dates historically, with the wettest December 4th recording 1.88" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for December 4th in San Mateo, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 55° | 44° | 50° | — | — |
| 2024 | 62° | 47° | 54° | — | — |
| 2023 | 63° | 51° | 57° | — | — |
| 2022 | 60° | 46° | 53° | 0.25" | — |
| 2021 | 58° | 53° | 55° | — | — |
| 2020 | 61° | 45° | 53° | — | — |
| 2019 | 56° | 53° | 54° | 0.76" | — |
| 2018 | 55° | 49° | 52° | 0.2" | — |
| 2017 | 62° | 51° | 57° | — | — |
| 2016 | 59° | 45° | 52° | — | — |
| 2015 | 58° | 45° | 51° | — | — |
| 2014warmest | 67° | 58° | 62° | 0.25" | — |
| 2013 | 52° | 39° | 45° | — | — |
| 2012 | 62° | 52° | 57° | — | — |
| 2011 | 58° | 42° | 50° | — | — |
| 2010 | 59° | 50° | 55° | 0.05" | — |
| 2009 | 53° | 45° | 49° | — | — |
| 2008 | 58° | 49° | 53° | — | — |
| 2007 | 62° | 52° | 57° | 0.84" | — |
| 2006 | 60° | 41° | 51° | — | — |
| 2005 | 56° | 40° | 48° | — | — |
| 2004 | 54° | 36° | 45° | — | — |
| 2003 | 54° | 46° | 50° | 0.46" | — |
| 2002 | 60° | 46° | 53° | — | — |
| 2001 | 56° | 43° | 49° | — | — |
| 2000 | 60° | 45° | 52° | — | — |
| 1999 | 56° | 43° | 49° | — | — |
| 1998 | 51° | 39° | 45° | — | — |
| 1997 | 60° | 54° | 57° | 0.1" | — |
| 1996 | 60° | 48° | 54° | 1.02" | — |
| 1995 | 62° | 54° | 58° | 0.25" | — |
| 1994 | 51° | 45° | 48° | 0.03" | — |
| 1993 | 61° | 46° | 53° | 0.13" | — |
| 1992 | 61° | 44° | 52° | — | — |
| 1991 | 63° | 41° | 52° | — | — |
| 1990 | 57° | 38° | 47° | — | — |
| 1989 | 63° | 44° | 53° | — | — |
| 1988 | 64° | 44° | 54° | — | — |
| 1987 | 59° | 52° | 55° | 1.88" | — |
| 1986 | 62° | 49° | 55° | 0.61" | — |
| 1985 | 59° | 51° | 55° | 0.03" | — |
| 1984 | 51° | 41° | 46° | 0.08" | — |
| 1983 | 56° | 43° | 49° | — | — |
| 1982 | 54° | 44° | 49° | — | — |
| 1981 | 53° | 46° | 50° | — | — |
| 1980 | 60° | 47° | 53° | 0.64" | — |
| 1979 | 62° | 40° | 51° | — | — |
| 1978 | 62° | 38° | 50° | — | — |
| 1977 | 69° | 46° | 58° | — | — |
| 1976 | 57° | 37° | 47° | — | — |
| 1975 | 63° | 41° | 52° | — | — |
| 1974 | 64° | 48° | 56° | 0.76" | — |
| 1973 | 56° | 40° | 48° | — | — |
| 1972 | 56° | 43° | 49° | 0.81" | — |
| 1971coldest | 55° | 36° | 45° | — | — |
55 years of data from BURLINGAME