Weather on April 4
San Mateo, CA
55 Years of Data
Avg High
64°F
Avg Low
47°F
Warmest
2026
66°F avg
Coldest
1999
49°F avg
About This Date
April 4th in San Mateo, CA typically brings mild spring weather, with average highs around 64°F and lows near 47°F. Over 56 years of records, the warmest April 4th was in 2026 (66°F average), while the coldest was 1999 (49°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 27% of April 4th dates historically, with the wettest April 4th recording 1.4" of rain. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for April 4th in San Mateo, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 80° | 51° | 66° | — | — |
| 2025 | 70° | 45° | 57° | — | — |
| 2024 | 55° | 44° | 50° | 1.27" | — |
| 2023 | 58° | 42° | 50° | — | — |
| 2022 | 64° | 51° | 58° | — | — |
| 2021 | 62° | 52° | 57° | — | — |
| 2020 | 59° | 49° | 54° | 0.74" | — |
| 2019 | 62° | 52° | 57° | — | — |
| 2018 | 63° | 52° | 57° | — | — |
| 2017 | 72° | 48° | 60° | — | — |
| 2016 | 66° | 52° | 59° | — | — |
| 2015 | 63° | 50° | 56° | — | — |
| 2014 | 60° | 51° | 56° | 0.56" | — |
| 2013 | 64° | 53° | 59° | 0.79" | — |
| 2012 | 57° | 46° | 52° | — | — |
| 2011 | 74° | 47° | 60° | — | — |
| 2010 | 56° | 48° | 52° | 1.35" | — |
| 2009 | 65° | 41° | 53° | — | — |
| 2008 | 57° | 45° | 51° | — | — |
| 2007 | 67° | 50° | 58° | — | — |
| 2006 | 57° | 49° | 53° | 1.24" | — |
| 2005 | 60° | 46° | 53° | 0.03" | — |
| 2004 | 57° | 51° | 54° | — | — |
| 2003 | 56° | 47° | 51° | 1.14" | — |
| 2002 | 59° | 54° | 56° | — | — |
| 2001 | 60° | 43° | 51° | — | — |
| 2000 | 62° | 52° | 57° | — | — |
| 1999coldest | 56° | 42° | 49° | — | — |
| 1998 | 55° | 48° | 52° | 0.99" | — |
| 1997 | 62° | 47° | 54° | — | — |
| 1996 | 69° | 47° | 58° | — | — |
| 1995 | 64° | 46° | 55° | — | — |
| 1994 | 71° | 44° | 58° | — | — |
| 1993 | 62° | 52° | 57° | 0.05" | — |
| 1992 | 62° | 51° | 57° | — | — |
| 1991 | 66° | 47° | 56° | — | — |
| 1990 | 68° | 49° | 58° | — | — |
| 1989 | 79° | 47° | 63° | — | — |
| 1988 | 63° | 48° | 55° | — | — |
| 1987 | 61° | 50° | 55° | — | — |
| 1986 | 60° | 48° | 54° | — | — |
| 1985 | 82° | 49° | 65° | — | — |
| 1984 | 64° | 48° | 56° | — | — |
| 1983 | 64° | 50° | 57° | — | — |
| 1982 | 55° | 44° | 50° | 0.05" | — |
| 1981 | 70° | 44° | 57° | — | — |
| 1980 | 57° | 48° | 53° | 1.4" | — |
| 1979 | 68° | 44° | 56° | — | — |
| 1978 | 67° | 45° | 56° | 1.14" | — |
| 1977 | 75° | 40° | 57° | — | — |
| 1976 | 58° | 47° | 52° | 0.03" | — |
| 1975 | 57° | 43° | 50° | 1.14" | — |
| 1974 | 68° | 40° | 54° | — | — |
| 1973 | 77° | 44° | 61° | — | — |
| 1972 | 68° | 54° | 61° | — | — |
| 1971 | 76° | 42° | 59° | — | — |
56 years of data from BURLINGAME