Weather on July 4
San Mateo, CA
55 Years of Data
Avg High
73°F
Avg Low
54°F
Warmest
2024
71°F avg
Coldest
1982
59°F avg
About This Date
July 4th in San Mateo, CA typically brings pleasant summer weather, with average highs around 73°F and lows near 54°F. Over 55 years of records, the warmest July 4th was in 2024 (71°F average), while the coldest was 1982 (59°F) — a 12°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.9°F warmer on this date compared to 20-30 years ago.
Planning for July 4th in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 54° | 60° | — | — |
| 2024warmest | 87° | 56° | 71° | — | — |
| 2023 | 71° | 56° | 63° | — | — |
| 2022 | 79° | 58° | 68° | — | — |
| 2021 | 77° | 60° | 69° | — | — |
| 2020 | 79° | 53° | 66° | — | — |
| 2019 | 73° | 55° | 64° | — | — |
| 2018 | 73° | 50° | 62° | — | — |
| 2017 | 72° | 57° | 64° | — | — |
| 2016 | 73° | 55° | 64° | — | — |
| 2015 | 71° | 58° | 64° | — | — |
| 2014 | 68° | 55° | 62° | — | — |
| 2013 | 77° | 59° | 68° | — | — |
| 2012 | 72° | 54° | 63° | — | — |
| 2011 | 69° | 55° | 62° | — | — |
| 2010 | 79° | 55° | 67° | — | — |
| 2009 | 73° | 55° | 64° | — | — |
| 2008 | 68° | 55° | 62° | — | — |
| 2007 | 80° | 56° | 68° | — | — |
| 2006 | 66° | 54° | 60° | — | — |
| 2005 | 71° | 55° | 63° | — | — |
| 2004 | 75° | 57° | 66° | — | — |
| 2003 | 74° | 52° | 63° | — | — |
| 2002 | 66° | 54° | 60° | — | — |
| 2001 | 69° | 56° | 62° | — | — |
| 2000 | 69° | 51° | 60° | — | — |
| 1999 | 73° | 50° | 62° | — | — |
| 1998 | 70° | 54° | 62° | — | — |
| 1997 | 68° | 57° | 63° | — | — |
| 1996 | 69° | 53° | 61° | — | — |
| 1995 | 69° | 55° | 62° | — | — |
| 1994 | 73° | 52° | 62° | — | — |
| 1993 | 80° | 53° | 67° | — | — |
| 1992 | 72° | 59° | 65° | — | — |
| 1991 | 70° | 53° | 61° | — | — |
| 1990 | 73° | 57° | 65° | — | — |
| 1989 | 70° | 54° | 62° | — | — |
| 1988 | 66° | 54° | 60° | — | — |
| 1987 | 69° | 56° | 62° | — | — |
| 1986 | 69° | 54° | 61° | — | — |
| 1985 | 75° | 55° | 65° | — | — |
| 1984 | 74° | 54° | 64° | — | — |
| 1983 | 80° | 54° | 67° | — | — |
| 1982coldest | 65° | 54° | 59° | — | — |
| 1981 | 83° | 52° | 67° | — | — |
| 1980 | 66° | 53° | 60° | — | — |
| 1979 | 69° | 55° | 62° | — | — |
| 1978 | 80° | 52° | 66° | — | — |
| 1977 | 80° | 49° | 64° | — | — |
| 1976 | 69° | 50° | 60° | — | — |
| 1975 | 66° | 53° | 60° | — | — |
| 1974 | 74° | 54° | 64° | — | — |
| 1973 | 87° | 51° | 69° | — | — |
| 1972 | 69° | 56° | 62° | — | — |
| 1971 | 73° | 48° | 61° | — | — |
55 years of data from BURLINGAME