Weather on June 20
Sunnyvale, CA
55 Years of Data
Avg High
77°F
Avg Low
56°F
Warmest
2008
81°F avg
Coldest
1975
59°F avg
About This Date
June 20th in Sunnyvale, CA typically brings pleasant summer weather, with average highs around 77°F and lows near 56°F. Over 55 years of records, the warmest June 20th was in 2008 (81°F average), while the coldest was 1975 (59°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 2% of June 20th dates historically. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for June 20th in Sunnyvale, CA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 68° | 54° | 61° | — | — |
| 2024 | 74° | 57° | 65° | — | — |
| 2023 | 74° | 50° | 62° | — | — |
| 2022 | 88° | 55° | 71° | — | — |
| 2021 | 79° | 56° | 67° | — | — |
| 2020 | 80° | 56° | 68° | — | — |
| 2019 | 77° | 60° | 69° | — | — |
| 2018 | 68° | 55° | 62° | — | — |
| 2017 | 82° | 61° | 71° | — | — |
| 2016 | 80° | 58° | 69° | — | — |
| 2015 | 75° | 56° | 65° | — | — |
| 2014 | 84° | 57° | 71° | — | — |
| 2013 | 78° | 52° | 65° | — | — |
| 2012 | 85° | 57° | 71° | — | — |
| 2011 | 94° | 62° | 78° | — | — |
| 2010 | 72° | 50° | 61° | — | — |
| 2009 | 71° | 55° | 63° | — | — |
| 2008warmest | 98° | 64° | 81° | — | — |
| 2007 | 71° | 55° | 63° | — | — |
| 2006 | 82° | 58° | 70° | — | — |
| 2005 | 73° | 53° | 63° | — | — |
| 2004 | 68° | 55° | 62° | — | — |
| 2003 | 75° | 53° | 64° | — | — |
| 2002 | 70° | 53° | 61° | — | — |
| 2001 | 92° | 61° | 76° | — | — |
| 2000 | 79° | 61° | 70° | — | — |
| 1999 | 73° | 53° | 63° | — | — |
| 1998 | 81° | 56° | 68° | — | — |
| 1997 | 74° | 56° | 65° | — | — |
| 1996 | 78° | 54° | 66° | — | — |
| 1995 | 81° | 52° | 66° | — | — |
| 1994 | 73° | 57° | 65° | — | — |
| 1993 | 72° | 60° | 66° | — | — |
| 1992 | 80° | 59° | 70° | — | — |
| 1991 | 71° | 50° | 61° | — | — |
| 1990 | 95° | 65° | 80° | — | — |
| 1989 | 89° | 57° | 73° | — | — |
| 1988 | 76° | 60° | 68° | 0.03" | — |
| 1987 | 71° | 53° | 62° | — | — |
| 1986 | 76° | 55° | 65° | — | — |
| 1985 | 78° | 57° | 68° | — | — |
| 1984 | 74° | 53° | 63° | — | — |
| 1983 | 74° | 55° | 64° | — | — |
| 1982 | 67° | 59° | 63° | — | — |
| 1981 | 86° | 68° | 77° | — | — |
| 1980 | 71° | 51° | 61° | — | — |
| 1979 | 73° | 57° | 65° | — | — |
| 1978 | 69° | 54° | 61° | — | — |
| 1977 | 83° | 54° | 68° | — | — |
| 1976 | 73° | 56° | 64° | — | — |
| 1975coldest | 66° | 52° | 59° | — | — |
| 1974 | 77° | 55° | 66° | — | — |
| 1973 | 95° | 60° | 78° | — | — |
| 1972 | 73° | 58° | 65° | — | — |
| 1971 | 74° | 57° | 65° | — | — |
55 years of data from MOFFETT FED AIRFIELD