Weather on September 1
Antioch, CA
55 Years of Data
Avg High
88°F
Avg Low
60°F
Warmest
2017
92°F avg
Coldest
2021
60°F avg
About This Date
September 1st in Antioch, CA typically brings warm fall weather, with average highs around 88°F and lows near 60°F — a 28°F daily swing. Over 54 years of records, the warmest September 1st was in 2017 (92°F average), while the coldest was 2021 (60°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 1st 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 September 1st in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 95° | 73° | 84° | — | — |
| 2024 | 77° | 57° | 67° | — | — |
| 2023 | 66° | 56° | 61° | — | — |
| 2022 | 99° | 75° | 87° | — | — |
| 2021coldest | 69° | 50° | 60° | — | — |
| 2020 | 84° | 59° | 72° | — | — |
| 2019 | 95° | 65° | 80° | — | — |
| 2018 | 79° | 60° | 69° | — | — |
| 2017warmest | 104° | 81° | 92° | — | — |
| 2016 | 87° | 57° | 72° | — | — |
| 2015 | 92° | 58° | 75° | — | — |
| 2014 | 96° | 62° | 79° | — | — |
| 2013 | 88° | 59° | 73° | — | — |
| 2012 | 72° | 56° | 64° | — | — |
| 2011 | 92° | 58° | 75° | — | — |
| 2010 | 99° | 68° | 83° | — | — |
| 2009 | 83° | 56° | 69° | — | — |
| 2008 | 86° | 60° | 73° | — | — |
| 2007 | 101° | 66° | 83° | — | — |
| 2006 | 93° | 56° | 74° | — | — |
| 2005 | 90° | 58° | 74° | — | — |
| 2004 | 90° | 61° | 75° | — | — |
| 2003 | 96° | 60° | 78° | — | — |
| 2002 | 99° | 65° | 82° | — | — |
| 2001 | 89° | 66° | 78° | — | — |
| 2000 | 68° | 55° | 62° | 0.2" | — |
| 1999 | 82° | 55° | 69° | — | — |
| 1998 | 100° | 62° | 81° | — | — |
| 1997 | 89° | 60° | 75° | — | — |
| 1996 | 92° | 56° | 74° | — | — |
| 1995 | 89° | 53° | 71° | — | — |
| 1994 | 92° | 59° | 75° | — | — |
| 1993 | 80° | 63° | 71° | — | — |
| 1992 | 85° | 57° | 71° | — | — |
| 1991 | 88° | 60° | 74° | — | — |
| 1989 | 90° | 57° | 73° | — | — |
| 1988 | 94° | 61° | 77° | — | — |
| 1987 | 95° | 64° | 80° | — | — |
| 1986 | 92° | 60° | 76° | — | — |
| 1985 | 92° | 70° | 81° | — | — |
| 1984 | 88° | 69° | 78° | — | — |
| 1983 | 85° | 57° | 71° | — | — |
| 1982 | 91° | 52° | 71° | — | — |
| 1981 | 97° | 54° | 75° | — | — |
| 1980 | 87° | 53° | 70° | — | — |
| 1979 | 88° | 53° | 70° | — | — |
| 1978 | 89° | 57° | 73° | — | — |
| 1977 | 89° | 53° | 71° | — | — |
| 1976 | 100° | 61° | 80° | — | — |
| 1975 | 86° | 56° | 71° | — | — |
| 1974 | 80° | 57° | 69° | — | — |
| 1973 | 78° | 54° | 66° | — | — |
| 1972 | 89° | 59° | 74° | — | — |
| 1971 | 80° | 63° | 71° | — | — |
54 years of data from ANTIOCH FIBREBRD MILLS