Weather on September 13
Antioch, CA
55 Years of Data
Avg High
86°F
Avg Low
58°F
Warmest
1979
86°F avg
Coldest
2022
61°F avg
About This Date
September 13th in Antioch, CA typically brings warm fall weather, with average highs around 86°F and lows near 58°F — a 28°F daily swing. Over 55 years of records, the warmest September 13th was in 1979 (86°F average), while the coldest was 2022 (61°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.1°F cooler on this date compared to 20-30 years ago.
Planning for September 13th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 62° | 67° | — | — |
| 2024 | 88° | 68° | 78° | — | — |
| 2023 | 87° | 65° | 76° | — | — |
| 2022coldest | 67° | 56° | 61° | — | — |
| 2021 | 87° | 71° | 79° | — | — |
| 2020 | 83° | 58° | 70° | — | — |
| 2019 | 96° | 65° | 80° | — | — |
| 2018 | 69° | 57° | 63° | — | — |
| 2017 | 88° | 57° | 72° | — | — |
| 2016 | 76° | 50° | 63° | — | — |
| 2015 | 105° | 63° | 84° | — | — |
| 2014 | 95° | 63° | 79° | — | — |
| 2013 | 89° | 60° | 75° | — | — |
| 2012 | 93° | 54° | 73° | — | — |
| 2011 | 91° | 63° | 77° | — | — |
| 2010 | 82° | 51° | 67° | — | — |
| 2009 | 78° | 72° | 75° | — | — |
| 2008 | 81° | 53° | 67° | — | — |
| 2007 | 79° | 59° | 69° | — | — |
| 2006 | 99° | 51° | 75° | — | — |
| 2005 | 78° | 51° | 65° | — | — |
| 2004 | 85° | 61° | 73° | — | — |
| 2003 | 94° | 65° | 79° | — | — |
| 2002 | 85° | 54° | 69° | — | — |
| 2001 | 80° | 57° | 69° | — | — |
| 2000 | 95° | 71° | 83° | — | — |
| 1999 | 86° | 54° | 70° | — | — |
| 1998 | 96° | 64° | 80° | — | — |
| 1997 | 89° | 58° | 73° | — | — |
| 1996 | 79° | 60° | 69° | — | — |
| 1995 | 87° | 55° | 71° | — | — |
| 1994 | 80° | 52° | 66° | — | — |
| 1993 | 88° | 60° | 74° | — | — |
| 1992 | 87° | 61° | 74° | — | — |
| 1991 | 87° | 52° | 69° | — | — |
| 1990 | 91° | 55° | 73° | — | — |
| 1989 | 88° | 58° | 73° | — | — |
| 1988 | 89° | 54° | 71° | — | — |
| 1987 | 78° | 55° | 67° | — | — |
| 1986 | 75° | 54° | 64° | — | — |
| 1985 | 80° | 52° | 66° | — | — |
| 1984 | 89° | 55° | 72° | — | — |
| 1983 | 102° | 66° | 84° | — | — |
| 1982 | 92° | 64° | 78° | — | — |
| 1981 | 85° | 61° | 73° | — | — |
| 1980 | 87° | 56° | 71° | — | — |
| 1979warmest | 105° | 66° | 86° | — | — |
| 1978 | 87° | 51° | 69° | — | — |
| 1977 | 88° | 58° | 73° | — | — |
| 1976 | 80° | 54° | 67° | — | — |
| 1975 | 83° | 52° | 67° | — | — |
| 1974 | 81° | 59° | 70° | — | — |
| 1973 | 81° | 55° | 68° | — | — |
| 1972 | 81° | 51° | 66° | — | — |
| 1971 | 100° | 66° | 83° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS