Weather on September 6
Sunnyvale, CA
55 Years of Data
Avg High
81°F
Avg Low
59°F
Warmest
2022
91°F avg
Coldest
1975
61°F avg
About This Date
September 6th in Sunnyvale, CA typically brings warm fall weather, with average highs around 81°F and lows near 59°F. Over 55 years of records, the warmest September 6th was in 2022 (91°F average), while the coldest was 1975 (61°F) — a 30°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for September 6th in Sunnyvale, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 73° | 63° | 68° | — | — |
| 2024 | 92° | 63° | 77° | — | — |
| 2023 | 83° | 59° | 71° | — | — |
| 2022warmest | 109° | 74° | 91° | — | — |
| 2021 | 93° | 60° | 77° | — | — |
| 2020 | 105° | 68° | 87° | — | — |
| 2019 | 73° | 58° | 65° | — | — |
| 2018 | 70° | 58° | 64° | — | — |
| 2017 | 80° | 66° | 73° | — | — |
| 2016 | 82° | 55° | 69° | — | — |
| 2015 | 87° | 54° | 70° | — | — |
| 2014 | 75° | 59° | 67° | — | — |
| 2013 | 88° | 57° | 72° | — | — |
| 2012 | 73° | 57° | 65° | — | — |
| 2011 | 82° | 58° | 70° | — | — |
| 2010 | 90° | 55° | 72° | — | — |
| 2009 | 77° | 58° | 67° | — | — |
| 2008 | 91° | 61° | 76° | — | — |
| 2007 | 83° | 63° | 73° | — | — |
| 2006 | 75° | 58° | 66° | — | — |
| 2005 | 70° | 56° | 63° | — | — |
| 2004 | 95° | 62° | 79° | — | — |
| 2003 | 72° | 54° | 63° | — | — |
| 2002 | 73° | 53° | 63° | — | — |
| 2001 | 84° | 53° | 69° | — | — |
| 2000 | 86° | 53° | 70° | — | — |
| 1999 | 79° | 57° | 68° | — | — |
| 1998 | 94° | 72° | 83° | — | — |
| 1997 | 86° | 56° | 71° | — | — |
| 1996 | 90° | 53° | 71° | — | — |
| 1995 | 97° | 58° | 77° | — | — |
| 1994 | 83° | 60° | 71° | — | — |
| 1993 | 72° | 60° | 66° | — | — |
| 1992 | 83° | 58° | 70° | — | — |
| 1991 | 74° | 64° | 69° | — | — |
| 1990 | 75° | 59° | 67° | — | — |
| 1989 | 72° | 58° | 65° | — | — |
| 1988 | 72° | 58° | 65° | — | — |
| 1987 | 74° | 62° | 68° | — | — |
| 1986 | 70° | 60° | 65° | — | — |
| 1985 | 80° | 60° | 70° | — | — |
| 1984 | 84° | 62° | 73° | — | — |
| 1983 | 77° | 63° | 70° | — | — |
| 1982 | 78° | 60° | 69° | — | — |
| 1981 | 76° | 58° | 67° | — | — |
| 1980 | 66° | 59° | 63° | — | — |
| 1979 | 89° | 62° | 76° | — | — |
| 1978 | 74° | 59° | 66° | — | — |
| 1977 | 87° | 59° | 73° | — | — |
| 1976 | 75° | 57° | 66° | — | — |
| 1975coldest | 66° | 55° | 61° | — | — |
| 1974 | 85° | 66° | 75° | — | — |
| 1973 | 77° | 54° | 65° | — | — |
| 1972 | 75° | 59° | 67° | — | — |
| 1971 | 72° | 56° | 64° | — | — |
55 years of data from MOFFETT FED AIRFIELD