Weather on September 1
Berkeley, CA
55 Years of Data
Avg High
74°F
Avg Low
55°F
Warmest
2017
76°F avg
Coldest
2012
57°F avg
About This Date
September 1st in Berkeley, CA typically brings pleasant fall weather, with average highs around 74°F and lows near 55°F. Over 55 years of records, the warmest September 1st was in 2017 (76°F average), while the coldest was 2012 (57°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 1st dates historically, with the wettest September 1st recording 0.86" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 1st in Berkeley, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 60° | 71° | — | — |
| 2024 | 75° | 59° | 67° | — | — |
| 2023 | 70° | 58° | 64° | — | — |
| 2022 | 81° | 55° | 68° | — | — |
| 2021 | 66° | 57° | 62° | — | — |
| 2020 | 70° | 57° | 63° | — | — |
| 2019 | 84° | 55° | 70° | — | — |
| 2018 | 76° | 53° | 64° | — | — |
| 2017warmest | 91° | 61° | 76° | — | — |
| 2016 | 77° | 53° | 65° | — | — |
| 2015 | 80° | 57° | 69° | — | — |
| 2014 | 81° | 55° | 68° | — | — |
| 2013 | 76° | 56° | 66° | — | — |
| 2012coldest | 62° | 51° | 57° | — | — |
| 2011 | 71° | 51° | 61° | — | — |
| 2010 | 91° | 54° | 72° | — | — |
| 2009 | 73° | 55° | 64° | — | — |
| 2008 | 76° | 49° | 62° | — | — |
| 2007 | 79° | 54° | 66° | — | — |
| 2006 | 79° | 53° | 66° | — | — |
| 2005 | 88° | 55° | 71° | — | — |
| 2004 | 77° | 58° | 67° | — | — |
| 2003 | 73° | 50° | 62° | — | — |
| 2002 | 78° | 51° | 65° | — | — |
| 2001 | 71° | 56° | 63° | — | — |
| 2000 | 72° | 57° | 64° | 0.86" | — |
| 1999 | 76° | 51° | 63° | — | — |
| 1998 | 80° | 53° | 67° | — | — |
| 1997 | 77° | 59° | 68° | — | — |
| 1996 | 65° | 57° | 61° | — | — |
| 1995 | 68° | 55° | 62° | — | — |
| 1994 | 68° | 57° | 63° | — | — |
| 1993 | 81° | 62° | 71° | — | — |
| 1992 | 74° | 63° | 68° | — | — |
| 1991 | 71° | 60° | 66° | — | — |
| 1990 | 72° | 58° | 65° | — | — |
| 1989 | 69° | 55° | 62° | — | — |
| 1988 | 68° | 55° | 62° | — | — |
| 1987 | 72° | 53° | 62° | — | — |
| 1986 | 66° | 55° | 61° | — | — |
| 1985 | 72° | 56° | 64° | — | — |
| 1984 | 85° | 56° | 70° | — | — |
| 1983 | 75° | 55° | 65° | — | — |
| 1982 | 75° | 53° | 64° | — | — |
| 1981 | 69° | 52° | 60° | — | — |
| 1980 | 67° | 53° | 60° | — | — |
| 1979 | 73° | 60° | 67° | — | — |
| 1978 | 78° | 55° | 67° | — | — |
| 1977 | 65° | 54° | 59° | — | — |
| 1976 | 70° | 55° | 62° | — | — |
| 1975 | 72° | 55° | 63° | — | — |
| 1974 | 66° | 54° | 60° | — | — |
| 1973 | 65° | 58° | 61° | — | — |
| 1972 | 64° | 55° | 60° | — | — |
| 1971 | 73° | 58° | 65° | — | — |
55 years of data from BERKELEY