Weather on November 21
San Mateo, CA
55 Years of Data
About This Date
November 21st in San Mateo, CA typically brings mild fall weather, with average highs around 61°F and lows near 48°F. Over 55 years of records, the warmest November 21st was in 2001 (62°F average), while the coldest was 1979 (45°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 33% of November 21st dates historically, with the wettest November 21st recording 4.57" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for November 21st in San Mateo, CA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 47° | 55° | — | — |
| 2024 | 65° | 55° | 60° | 1.27" | — |
| 2023 | 64° | 48° | 56° | — | — |
| 2022 | 64° | 42° | 53° | — | — |
| 2021 | 68° | 48° | 58° | — | — |
| 2020 | 65° | 44° | 54° | — | — |
| 2019 | 62° | 50° | 56° | — | — |
| 2018 | 60° | 55° | 58° | 1.93" | — |
| 2017 | 66° | 55° | 61° | — | — |
| 2016 | 61° | 52° | 56° | — | — |
| 2015 | 68° | 49° | 58° | — | — |
| 2014 | 61° | 54° | 57° | — | — |
| 2013 | 62° | 50° | 56° | — | — |
| 2012 | 64° | 52° | 58° | 0.81" | — |
| 2011 | 57° | 48° | 53° | — | — |
| 2010 | 55° | 44° | 50° | 0.51" | — |
| 2009 | 57° | 45° | 51° | — | — |
| 2008 | 65° | 45° | 55° | — | — |
| 2007 | 63° | 42° | 52° | — | — |
| 2006 | 63° | 52° | 57° | — | — |
| 2005 | 66° | 45° | 55° | — | — |
| 2004 | 62° | 48° | 55° | — | — |
| 2003 | 57° | 43° | 50° | — | — |
| 2002 | 68° | 53° | 61° | — | — |
| 2001warmest | 64° | 60° | 62° | 0.2" | — |
| 2000 | 56° | 48° | 52° | 0.48" | — |
| 1999 | 59° | 50° | 55° | 0.15" | — |
| 1998 | 65° | 51° | 58° | 0.28" | — |
| 1997 | 58° | 48° | 53° | — | — |
| 1996 | 62° | 54° | 58° | 0.15" | — |
| 1995 | 64° | 54° | 59° | — | — |
| 1994 | 57° | 42° | 50° | — | — |
| 1993 | 56° | 45° | 50° | 0.13" | — |
| 1992 | 60° | 47° | 53° | 0.13" | — |
| 1991 | 63° | 48° | 55° | — | — |
| 1990 | 58° | 48° | 53° | 0.2" | — |
| 1989 | 59° | 48° | 54° | — | — |
| 1988 | 58° | 44° | 51° | 0.03" | — |
| 1987 | 60° | 47° | 53° | — | — |
| 1986 | 63° | 51° | 57° | — | — |
| 1985 | 53° | 42° | 48° | — | — |
| 1984 | 57° | 42° | 50° | — | — |
| 1983 | 59° | 40° | 49° | — | — |
| 1982 | 55° | 39° | 47° | — | — |
| 1981 | 62° | 58° | 60° | 0.97" | — |
| 1980 | 60° | 43° | 51° | 0.08" | — |
| 1979coldest | 55° | 36° | 45° | — | — |
| 1978 | 59° | 50° | 55° | 0.89" | — |
| 1977 | 56° | 47° | 51° | 4.57" | — |
| 1976 | 60° | 53° | 57° | — | — |
| 1975 | 60° | 35° | 48° | — | — |
| 1974 | 63° | 55° | 59° | 0.71" | — |
| 1973 | 55° | 41° | 48° | — | — |
| 1972 | 58° | 45° | 51° | — | — |
| 1971 | 61° | 39° | 50° | — | — |
San Mateo, CA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Mateo, CA Monthly Precipitation
Average rainfall per month, in inches.
San Mateo, CA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Mateo, CA
San Mateo, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.