Weather on December 29
San Mateo, CA
55 Years of Data
Avg High
56°F
Avg Low
44°F
Warmest
2023
60°F avg
Coldest
1984
41°F avg
About This Date
December 29th in San Mateo, CA typically brings cool winter weather, with average highs around 56°F and lows near 44°F. Over 55 years of records, the warmest December 29th was in 2023 (60°F average), while the coldest was 1984 (41°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 44% of December 29th dates historically, with the wettest December 29th recording 6.6" 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 29th in San Mateo, CA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 45° | 53° | — | — |
| 2024 | 62° | 52° | 57° | 0.71" | — |
| 2023warmest | 65° | 56° | 60° | 2.49" | — |
| 2022 | 58° | 49° | 53° | 1.14" | — |
| 2021 | 51° | 45° | 48° | 2.08" | — |
| 2020 | 61° | 41° | 51° | — | — |
| 2019 | 56° | 49° | 52° | 1.19" | — |
| 2018 | 60° | 41° | 51° | — | — |
| 2017 | 56° | 44° | 50° | — | — |
| 2016 | 58° | 41° | 49° | — | — |
| 2015 | 54° | 36° | 45° | — | — |
| 2014 | 55° | 44° | 50° | — | — |
| 2013 | 68° | 42° | 55° | — | — |
| 2012 | 54° | 44° | 49° | 0.28" | — |
| 2011 | 56° | 46° | 51° | — | — |
| 2010 | 57° | 44° | 51° | 0.23" | — |
| 2009 | 53° | 38° | 45° | 0.1" | — |
| 2008 | 58° | 44° | 51° | — | — |
| 2007 | 53° | 45° | 49° | 0.3" | — |
| 2006 | 53° | 37° | 45° | — | — |
| 2005 | 55° | 48° | 52° | 0.03" | — |
| 2004 | 56° | 48° | 52° | 1.68" | — |
| 2003 | 57° | 48° | 53° | 6.6" | — |
| 2002 | 55° | 47° | 51° | 0.43" | — |
| 2001 | 56° | 50° | 53° | 1.37" | — |
| 2000 | 57° | 41° | 49° | — | — |
| 1999 | 57° | 40° | 48° | — | — |
| 1998 | 52° | 41° | 46° | — | — |
| 1997 | 60° | 44° | 52° | — | — |
| 1996 | 61° | 55° | 58° | 1.3" | — |
| 1995 | 60° | 51° | 56° | 1.7" | — |
| 1994 | 51° | 38° | 44° | — | — |
| 1993 | 58° | 40° | 49° | — | — |
| 1992 | 53° | 43° | 48° | 1.4" | — |
| 1991 | 52° | 48° | 50° | 0.99" | — |
| 1990 | 52° | 35° | 43° | — | — |
| 1989 | 65° | 43° | 54° | — | — |
| 1988 | 51° | 33° | 42° | — | — |
| 1987 | 50° | 41° | 46° | 0.66" | — |
| 1986 | 57° | 43° | 50° | — | — |
| 1985 | 47° | 44° | 45° | 1.4" | — |
| 1984coldest | 43° | 40° | 41° | — | — |
| 1983 | 58° | 52° | 55° | — | — |
| 1982 | 53° | 38° | 45° | — | — |
| 1981 | 57° | 50° | 54° | 5.03" | — |
| 1980 | 56° | 43° | 49° | — | — |
| 1979 | 54° | 39° | 46° | — | — |
| 1978 | 50° | 40° | 45° | — | — |
| 1977 | 60° | 52° | 56° | — | — |
| 1976 | 55° | 39° | 47° | 0.03" | — |
| 1975 | 58° | 46° | 52° | — | — |
| 1974 | 56° | 44° | 50° | — | — |
| 1973 | 60° | 48° | 54° | 0.28" | — |
| 1972 | 55° | 35° | 45° | — | — |
| 1971 | 54° | 46° | 50° | 0.36" | — |
55 years of data from BURLINGAME