Weather on July 3
San Mateo, CA
55 Years of Data
Avg High
72°F
Avg Low
54°F
Warmest
2024
74°F avg
Coldest
1999
57°F avg
About This Date
July 3rd in San Mateo, CA typically brings pleasant summer weather, with average highs around 72°F and lows near 54°F. Over 55 years of records, the warmest July 3rd was in 2024 (74°F average), while the coldest was 1999 (57°F) — a 17°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for July 3rd in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 65° | 54° | 59° | — | — |
| 2024warmest | 86° | 62° | 74° | — | — |
| 2023 | 73° | 58° | 65° | — | — |
| 2022 | 65° | 56° | 60° | — | — |
| 2021 | 75° | 61° | 68° | — | — |
| 2020 | 68° | 55° | 62° | — | — |
| 2019 | 71° | 55° | 63° | — | — |
| 2018 | 75° | 51° | 63° | — | — |
| 2017 | 79° | 54° | 66° | — | — |
| 2016 | 74° | 54° | 64° | — | — |
| 2015 | 72° | 58° | 65° | — | — |
| 2014 | 73° | 57° | 65° | — | — |
| 2013 | 80° | 58° | 69° | — | — |
| 2012 | 69° | 55° | 62° | — | — |
| 2011 | 84° | 56° | 70° | — | — |
| 2010 | 79° | 54° | 66° | — | — |
| 2009 | 67° | 55° | 61° | — | — |
| 2008 | 74° | 55° | 64° | — | — |
| 2007 | 67° | 55° | 61° | — | — |
| 2006 | 66° | 53° | 60° | — | — |
| 2005 | 68° | 55° | 62° | — | — |
| 2004 | 74° | 55° | 64° | — | — |
| 2003 | 67° | 52° | 59° | — | — |
| 2002 | 68° | 53° | 61° | — | — |
| 2001 | 87° | 59° | 73° | — | — |
| 2000 | 61° | 53° | 57° | — | — |
| 1999coldest | 63° | 52° | 57° | — | — |
| 1998 | 69° | 54° | 61° | — | — |
| 1997 | 71° | 56° | 63° | — | — |
| 1996 | 71° | 55° | 63° | — | — |
| 1995 | 69° | 57° | 63° | — | — |
| 1994 | 73° | 53° | 63° | — | — |
| 1993 | 75° | 52° | 63° | — | — |
| 1992 | 72° | 58° | 65° | — | — |
| 1991 | 74° | 54° | 64° | — | — |
| 1990 | 69° | 52° | 60° | — | — |
| 1989 | 68° | 56° | 62° | — | — |
| 1988 | 66° | 53° | 60° | — | — |
| 1987 | 69° | 56° | 62° | — | — |
| 1986 | 70° | 54° | 62° | — | — |
| 1985 | 76° | 52° | 64° | — | — |
| 1984 | 83° | 54° | 68° | — | — |
| 1983 | 81° | 51° | 66° | — | — |
| 1982 | 68° | 53° | 61° | — | — |
| 1981 | 71° | 53° | 62° | — | — |
| 1980 | 65° | 54° | 59° | — | — |
| 1979 | 65° | 53° | 59° | — | — |
| 1978 | 78° | 53° | 66° | — | — |
| 1977 | 78° | 49° | 63° | — | — |
| 1976 | 71° | 54° | 62° | — | — |
| 1975 | 67° | 52° | 59° | — | — |
| 1974 | 74° | 51° | 62° | — | — |
| 1973 | — | 50° | — | — | — |
| 1972 | 73° | 56° | 64° | — | — |
| 1971 | 71° | 51° | 61° | — | — |
55 years of data from BURLINGAME