Weather on June 15
San Mateo, CA
55 Years of Data
Avg High
71°F
Avg Low
53°F
Warmest
1976
74°F avg
Coldest
2008
56°F avg
About This Date
June 15th in San Mateo, CA typically brings pleasant summer weather, with average highs around 71°F and lows near 53°F. Over 55 years of records, the warmest June 15th was in 1976 (74°F average), while the coldest was 2008 (56°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 15th dates historically. The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.2°F cooler on this date compared to 20-30 years ago.
Planning for June 15th in San Mateo, CA? Great weather for outdoor activities.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 51° | 59° | — | — |
| 2024 | 69° | 52° | 60° | — | — |
| 2023 | 75° | 56° | 65° | — | — |
| 2022 | 69° | 54° | 61° | — | — |
| 2021 | 74° | 56° | 65° | — | — |
| 2020 | 70° | 55° | 62° | — | — |
| 2019 | 63° | 54° | 58° | — | — |
| 2018 | 66° | 56° | 61° | — | — |
| 2017 | 72° | 55° | 63° | — | — |
| 2016 | 66° | 53° | 60° | — | — |
| 2015 | 61° | 53° | 57° | — | — |
| 2014 | 70° | 56° | 63° | — | — |
| 2013 | 62° | 51° | 57° | — | — |
| 2012 | 74° | 50° | 62° | — | — |
| 2011 | 71° | 53° | 62° | — | — |
| 2010 | 62° | 52° | 57° | — | — |
| 2009 | 66° | 58° | 62° | — | — |
| 2008coldest | 60° | 51° | 56° | — | — |
| 2007 | 77° | 55° | 66° | — | — |
| 2006 | 73° | 54° | 63° | — | — |
| 2005 | 68° | 51° | 60° | — | — |
| 2004 | 83° | 54° | 68° | — | — |
| 2003 | 70° | 53° | 61° | — | — |
| 2002 | 64° | 51° | 58° | — | — |
| 2001 | 71° | 53° | 62° | — | — |
| 2000 | 79° | 57° | 68° | — | — |
| 1999 | 63° | 53° | 58° | — | — |
| 1998 | 83° | 58° | 70° | — | — |
| 1997 | 73° | 56° | 64° | — | — |
| 1996 | 62° | 51° | 57° | — | — |
| 1995 | 63° | 53° | 58° | 0.48" | — |
| 1994 | 65° | 51° | 58° | — | — |
| 1993 | 70° | 54° | 62° | — | — |
| 1992 | 68° | 55° | 62° | — | — |
| 1991 | 66° | 51° | 59° | — | — |
| 1990 | 62° | 55° | 59° | — | — |
| 1989 | 73° | 56° | 64° | — | — |
| 1988 | 73° | 54° | 63° | — | — |
| 1987 | 70° | 55° | 62° | — | — |
| 1986 | 66° | 55° | 61° | — | — |
| 1985 | 76° | 54° | 65° | — | — |
| 1984 | 73° | 53° | 63° | — | — |
| 1983 | 75° | 53° | 64° | — | — |
| 1982 | 67° | 52° | 59° | — | — |
| 1981 | 92° | 54° | 73° | — | — |
| 1980 | 74° | 50° | 62° | — | — |
| 1979 | 64° | 51° | 58° | — | — |
| 1978 | 72° | 55° | 63° | — | — |
| 1977 | 68° | 59° | 64° | — | — |
| 1976warmest | 97° | 52° | 74° | — | — |
| 1975 | 74° | 53° | 63° | — | — |
| 1974 | 68° | 49° | 58° | — | — |
| 1973 | 66° | 49° | 57° | — | — |
| 1972 | 72° | 52° | 62° | — | — |
| 1971 | 84° | 52° | 68° | — | — |
55 years of data from BURLINGAME