Weather on February 9
San Mateo, CA
55 Years of Data
Avg High
60°F
Avg Low
45°F
Warmest
2018
62°F avg
Coldest
1985
45°F avg
About This Date
February 9th in San Mateo, CA typically brings mild winter weather, with average highs around 60°F and lows near 45°F. Over 56 years of records, the warmest February 9th was in 2018 (62°F average), while the coldest was 1985 (45°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 36% of February 9th dates historically, with the wettest February 9th recording 2.29" of rain. The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.6°F warmer on this date compared to 20-30 years ago.
Planning for February 9th in San Mateo, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 62° | 50° | 56° | — | — |
| 2025 | 57° | 39° | 48° | — | — |
| 2024 | 57° | 41° | 49° | — | — |
| 2023 | 64° | 43° | 53° | — | — |
| 2022 | 73° | 48° | 61° | — | — |
| 2021 | 60° | 51° | 56° | — | — |
| 2020 | 61° | 45° | 53° | — | — |
| 2019 | 55° | 42° | 49° | 0.89" | — |
| 2018warmest | 74° | 51° | 62° | — | — |
| 2017 | 63° | 58° | 60° | 1.63" | — |
| 2016 | 71° | 49° | 60° | — | — |
| 2015 | 64° | 54° | 59° | — | — |
| 2014 | 59° | 55° | 57° | 0.89" | — |
| 2013 | 56° | 41° | 48° | — | — |
| 2012 | 66° | 46° | 56° | — | — |
| 2011 | 60° | 42° | 51° | — | — |
| 2010 | 56° | 47° | 51° | 0.51" | — |
| 2009 | 52° | 43° | 47° | — | — |
| 2008 | 66° | 42° | 54° | — | — |
| 2007 | 60° | 53° | 57° | 0.89" | — |
| 2006 | 71° | 46° | 59° | — | — |
| 2005 | 61° | 45° | 53° | — | — |
| 2004 | 61° | 39° | 50° | — | — |
| 2003 | 58° | 37° | 47° | — | — |
| 2002 | 60° | 41° | 51° | — | — |
| 2001 | 53° | 43° | 48° | 1.57" | — |
| 2000 | 57° | 51° | 54° | 0.13" | — |
| 1999 | 59° | 42° | 51° | 2.29" | — |
| 1998 | 54° | 41° | 47° | — | — |
| 1997 | 54° | 42° | 48° | — | — |
| 1996 | 63° | 51° | 57° | — | — |
| 1995 | 64° | 44° | 54° | — | — |
| 1994 | 57° | 44° | 51° | — | — |
| 1993 | 58° | 47° | 52° | 0.13" | — |
| 1992 | 60° | 51° | 56° | 0.46" | — |
| 1991 | 59° | 45° | 52° | — | — |
| 1990 | 58° | 46° | 52° | — | — |
| 1989 | 51° | 40° | 45° | 0.3" | — |
| 1988 | 62° | 45° | 53° | — | — |
| 1987 | 60° | 54° | 57° | 0.05" | — |
| 1986 | 59° | 41° | 50° | — | — |
| 1985coldest | 54° | 37° | 45° | — | — |
| 1984 | 59° | 46° | 53° | 0.56" | — |
| 1983 | 62° | 52° | 57° | — | — |
| 1982 | 52° | 41° | 46° | — | — |
| 1981 | 61° | 49° | 55° | 0.1" | — |
| 1980 | 63° | 39° | 51° | — | — |
| 1979 | 63° | 41° | 52° | — | — |
| 1978 | 57° | 49° | 53° | 0.94" | — |
| 1977 | 59° | 43° | 51° | 0.13" | — |
| 1976 | 58° | 43° | 50° | 1.52" | — |
| 1975 | 67° | 52° | 59° | 1.75" | — |
| 1974 | 60° | 38° | 49° | — | — |
| 1973 | 60° | 51° | 56° | 0.08" | — |
| 1972 | 65° | 49° | 57° | 0.1" | — |
| 1971 | 63° | 41° | 52° | — | — |
56 years of data from BURLINGAME