Weather on April 23
San Mateo, CA
55 Years of Data
Avg High
66°F
Avg Low
50°F
Warmest
2019
70°F avg
Coldest
1974
52°F avg
About This Date
April 23rd in San Mateo, CA typically brings mild spring weather, with average highs around 66°F and lows near 50°F. Over 55 years of records, the warmest April 23rd was in 2019 (70°F average), while the coldest was 1974 (52°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 16% of April 23rd dates historically, with the wettest April 23rd recording 1.52" 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 April 23rd in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 51° | 54° | — | — |
| 2024 | 62° | 56° | 59° | — | — |
| 2023 | 61° | 51° | 56° | — | — |
| 2022 | 70° | 51° | 60° | — | — |
| 2021 | 68° | 52° | 60° | — | — |
| 2020 | 71° | 54° | 62° | — | — |
| 2019warmest | 88° | 53° | 70° | — | — |
| 2018 | 74° | 52° | 63° | — | — |
| 2017 | 64° | 53° | 59° | — | — |
| 2016 | 63° | 51° | 57° | — | — |
| 2015 | 67° | 51° | 59° | — | — |
| 2014 | 66° | 52° | 59° | — | — |
| 2013 | 76° | 49° | 62° | — | — |
| 2012 | 67° | 54° | 60° | — | — |
| 2011 | 62° | 49° | 55° | 0.03" | — |
| 2010 | 67° | 48° | 57° | — | — |
| 2009 | 64° | 50° | 57° | — | — |
| 2008 | 61° | 48° | 54° | — | — |
| 2007 | 66° | 47° | 56° | — | — |
| 2006 | 61° | 52° | 56° | — | — |
| 2005 | 66° | 53° | 60° | — | — |
| 2004 | 76° | 51° | 63° | — | — |
| 2003 | 61° | 50° | 55° | — | — |
| 2002 | 76° | 49° | 62° | — | — |
| 2001 | 69° | 48° | 59° | — | — |
| 2000 | 62° | 50° | 56° | — | — |
| 1999 | 76° | 58° | 67° | — | — |
| 1998 | 65° | 54° | 59° | 0.15" | — |
| 1997 | 63° | 51° | 57° | — | — |
| 1996 | 70° | 51° | 60° | — | — |
| 1995 | 79° | 48° | 63° | — | — |
| 1994 | 55° | 49° | 52° | 0.66" | — |
| 1993 | 62° | 52° | 57° | 0.08" | — |
| 1992 | 75° | 47° | 61° | — | — |
| 1991 | 57° | 50° | 54° | — | — |
| 1990 | 61° | 51° | 56° | 0.36" | — |
| 1989 | 61° | 48° | 54° | 0.58" | — |
| 1988 | 61° | 47° | 54° | — | — |
| 1987 | 64° | 49° | 56° | — | — |
| 1986 | 61° | 48° | 54° | — | — |
| 1985 | 67° | 48° | 57° | — | — |
| 1984 | 63° | 50° | 56° | — | — |
| 1983 | 56° | 50° | 53° | 1.52" | — |
| 1982 | 68° | 45° | 56° | — | — |
| 1981 | 65° | 49° | 57° | — | — |
| 1980 | 61° | 48° | 54° | — | — |
| 1979 | 64° | 51° | 58° | 0.66" | — |
| 1978 | 74° | 44° | 59° | — | — |
| 1977 | 73° | 39° | 56° | — | — |
| 1976 | 70° | 41° | 55° | — | — |
| 1975 | 64° | 48° | 56° | — | — |
| 1974coldest | 61° | 44° | 52° | 0.74" | — |
| 1973 | 75° | 46° | 61° | — | — |
| 1972 | 60° | 48° | 54° | — | — |
| 1971 | 59° | 47° | 53° | — | — |
55 years of data from BURLINGAME