Weather on July 22
San Mateo, CA
55 Years of Data
Avg High
73°F
Avg Low
55°F
Warmest
2006
80°F avg
Coldest
1981
58°F avg
About This Date
July 22nd in San Mateo, CA typically brings pleasant summer weather, with average highs around 73°F and lows near 55°F. Over 55 years of records, the warmest July 22nd was in 2006 (80°F average), while the coldest was 1981 (58°F) — a 22°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for July 22nd in San Mateo, CA? Great weather for outdoor activities.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 58° | 63° | — | — |
| 2024 | 75° | 54° | 64° | — | — |
| 2023 | 79° | 55° | 67° | — | — |
| 2022 | 70° | 55° | 62° | — | — |
| 2021 | 66° | 55° | 61° | — | — |
| 2020 | 74° | 58° | 66° | — | — |
| 2019 | 74° | 57° | 65° | — | — |
| 2018 | 72° | 58° | 65° | — | — |
| 2017 | 80° | 55° | 68° | — | — |
| 2016 | 70° | 54° | 62° | — | — |
| 2015 | 68° | 60° | 64° | — | — |
| 2014 | 77° | 64° | 71° | — | — |
| 2013 | 78° | 57° | 68° | — | — |
| 2012 | 71° | 54° | 62° | — | — |
| 2011 | 75° | 55° | 65° | — | — |
| 2010 | 70° | 55° | 62° | — | — |
| 2009 | 64° | 54° | 59° | — | — |
| 2008 | 70° | 52° | 61° | — | — |
| 2007 | 72° | 61° | 66° | — | — |
| 2006warmest | 97° | 63° | 80° | — | — |
| 2005 | 72° | 60° | 66° | — | — |
| 2004 | 74° | 58° | 66° | — | — |
| 2003 | 73° | 55° | 64° | — | — |
| 2002 | 71° | 56° | 63° | — | — |
| 2001 | 71° | 54° | 62° | — | — |
| 2000 | 68° | 55° | 62° | — | — |
| 1999 | 67° | 54° | 60° | — | — |
| 1998 | 69° | 56° | 62° | — | — |
| 1997 | 72° | 56° | 64° | — | — |
| 1996 | 67° | 52° | 59° | — | — |
| 1995 | 70° | 57° | 63° | — | — |
| 1994 | 71° | 57° | 64° | — | — |
| 1993 | 73° | 57° | 65° | — | — |
| 1992 | 71° | 57° | 64° | — | — |
| 1991 | 72° | 57° | 64° | — | — |
| 1990 | 68° | 56° | 62° | — | — |
| 1989 | 85° | 51° | 68° | — | — |
| 1988 | 74° | 57° | 65° | — | — |
| 1987 | 70° | 55° | 62° | — | — |
| 1986 | 74° | 57° | 65° | — | — |
| 1985 | 70° | 56° | 63° | — | — |
| 1984 | 68° | 54° | 61° | — | — |
| 1983 | 70° | 57° | 63° | — | — |
| 1982 | 71° | 52° | 61° | — | — |
| 1981coldest | 67° | 49° | 58° | — | — |
| 1980 | 68° | 54° | 61° | — | — |
| 1979 | 70° | 56° | 63° | — | — |
| 1978 | 79° | 53° | 66° | — | — |
| 1977 | 75° | 50° | 63° | — | — |
| 1976 | 79° | 47° | 63° | — | — |
| 1975 | 78° | — | — | — | — |
| 1974 | 79° | 50° | 64° | — | — |
| 1973 | 74° | 52° | 63° | — | — |
| 1972 | 69° | 54° | 61° | — | — |
| 1971 | 73° | 53° | 63° | — | — |
55 years of data from BURLINGAME