Weather on September 4
Antioch, CA
55 Years of Data
Avg High
88°F
Avg Low
59°F
Warmest
2022
89°F avg
Coldest
1992
64°F avg
About This Date
September 4th in Antioch, CA typically brings warm fall weather, with average highs around 88°F and lows near 59°F — a 29°F daily swing. Over 55 years of records, the warmest September 4th was in 2022 (89°F average), while the coldest was 1992 (64°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.7°F warmer on this date compared to 20-30 years ago.
Planning for September 4th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 56° | 65° | — | — |
| 2024 | 95° | 74° | 84° | — | — |
| 2023 | 78° | 57° | 68° | — | — |
| 2022warmest | 100° | 79° | 89° | — | — |
| 2021 | 89° | 68° | 79° | — | — |
| 2020 | 95° | 59° | 77° | — | — |
| 2019 | 92° | 63° | 77° | — | — |
| 2018 | 82° | 69° | 76° | — | — |
| 2017 | 85° | 66° | 75° | — | — |
| 2016 | 80° | 57° | 69° | — | — |
| 2015 | 82° | 57° | 70° | — | — |
| 2014 | 87° | 60° | 74° | — | — |
| 2013 | 85° | 61° | 73° | — | — |
| 2012 | 93° | 58° | 75° | — | — |
| 2011 | 87° | 56° | 71° | — | — |
| 2010 | 91° | 56° | 73° | — | — |
| 2009 | 92° | 57° | 74° | — | — |
| 2008 | 99° | 64° | 81° | — | — |
| 2007 | 85° | 65° | 75° | — | — |
| 2006 | 85° | 53° | 69° | — | — |
| 2005 | 87° | 54° | 70° | — | — |
| 2004 | 90° | 64° | 77° | — | — |
| 2003 | 87° | 57° | 72° | — | — |
| 2002 | 89° | 57° | 73° | — | — |
| 2001 | 88° | 67° | 77° | — | — |
| 2000 | 75° | 54° | 64° | — | — |
| 1999 | 85° | 56° | 70° | — | — |
| 1998 | 89° | 62° | 76° | — | — |
| 1997 | 89° | 65° | 77° | — | — |
| 1996 | 78° | 53° | 66° | — | — |
| 1995 | 82° | 54° | 68° | — | — |
| 1994 | 86° | 57° | 72° | — | — |
| 1993 | 97° | 61° | 79° | — | — |
| 1992coldest | 76° | 52° | 64° | — | — |
| 1991 | 99° | 63° | 81° | — | — |
| 1990 | 86° | 55° | 71° | — | — |
| 1989 | 93° | 57° | 75° | — | — |
| 1988 | 104° | 64° | 84° | — | — |
| 1987 | 96° | 55° | 76° | — | — |
| 1986 | 89° | 58° | 73° | — | — |
| 1985 | 88° | 57° | 72° | — | — |
| 1984 | 96° | 56° | 76° | — | — |
| 1983 | 95° | 60° | 78° | — | — |
| 1982 | 92° | 53° | 72° | — | — |
| 1981 | 84° | 52° | 68° | — | — |
| 1980 | 87° | 53° | 70° | — | — |
| 1979 | 87° | 56° | 71° | — | — |
| 1978 | 86° | 61° | 73° | — | — |
| 1977 | 89° | 55° | 72° | — | — |
| 1976 | 89° | 53° | 71° | — | — |
| 1975 | 94° | 56° | 75° | — | — |
| 1974 | 88° | 57° | 72° | — | — |
| 1973 | 84° | 55° | 70° | — | — |
| 1972 | 84° | 58° | 71° | — | — |
| 1971 | 88° | 53° | 70° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS