Weather on September 28
Antioch, CA
55 Years of Data
Avg High
82°F
Avg Low
57°F
Warmest
2010
84°F avg
Coldest
1986
61°F avg
About This Date
September 28th in Antioch, CA typically brings warm fall weather, with average highs around 82°F and lows near 57°F — a 25°F daily swing. Over 55 years of records, the warmest September 28th was in 2010 (84°F average), while the coldest was 1986 (61°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 28th 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 28th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 57° | 61° | — | — |
| 2024 | 81° | 66° | 73° | — | — |
| 2023 | 78° | 56° | 67° | — | — |
| 2022 | 77° | 61° | 69° | — | — |
| 2021 | 72° | 50° | 61° | — | — |
| 2020 | 96° | 72° | 84° | — | — |
| 2019 | 73° | 53° | 63° | — | — |
| 2018 | 75° | 50° | 63° | — | — |
| 2017 | 85° | 68° | 76° | — | — |
| 2016 | 86° | 59° | 73° | — | — |
| 2015 | 84° | 60° | 72° | — | — |
| 2014 | 73° | 56° | 64° | — | — |
| 2013 | 84° | 50° | 67° | — | — |
| 2012 | 93° | 58° | 75° | — | — |
| 2011 | 93° | 64° | 79° | — | — |
| 2010warmest | 99° | 70° | 84° | — | — |
| 2009 | 88° | 58° | 73° | — | — |
| 2008 | 94° | 58° | 76° | — | — |
| 2007 | 78° | 48° | 63° | — | — |
| 2006 | 81° | 52° | 66° | — | — |
| 2005 | 90° | 59° | 74° | — | — |
| 2004 | 75° | 54° | 64° | — | — |
| 2003 | 82° | 54° | 68° | — | — |
| 2002 | 72° | 54° | 63° | — | — |
| 2001 | 79° | — | — | — | — |
| 2000 | 79° | 55° | 67° | — | — |
| 1999 | 88° | 68° | 78° | — | — |
| 1998 | 74° | 57° | 65° | 0.05" | — |
| 1997 | 90° | 64° | 77° | — | — |
| 1996 | 81° | 52° | 66° | — | — |
| 1995 | 82° | 55° | 69° | — | — |
| 1994 | 86° | 61° | 73° | — | — |
| 1993 | 95° | 60° | 78° | — | — |
| 1992 | 95° | 59° | 77° | — | — |
| 1991 | 84° | 56° | 70° | — | — |
| 1990 | 83° | 57° | 70° | — | — |
| 1989 | 77° | 57° | 67° | — | — |
| 1988 | 84° | 59° | 72° | — | — |
| 1987 | 90° | 56° | 73° | — | — |
| 1986coldest | 72° | 51° | 61° | — | — |
| 1985 | 75° | 53° | 64° | — | — |
| 1984 | 93° | 58° | 75° | — | — |
| 1983 | 77° | 50° | 64° | — | — |
| 1982 | 77° | 50° | 64° | — | — |
| 1981 | 82° | 59° | 71° | — | — |
| 1980 | 77° | 54° | 65° | — | — |
| 1979 | 84° | 51° | 68° | — | — |
| 1978 | 84° | 52° | 68° | — | — |
| 1977 | 81° | 61° | 71° | — | — |
| 1976 | 78° | 60° | 69° | — | — |
| 1975 | 83° | 53° | 68° | — | — |
| 1974 | 82° | 46° | 64° | — | — |
| 1973 | 92° | 55° | 73° | — | — |
| 1972 | 70° | 57° | 63° | 0.48" | — |
| 1971 | 72° | 54° | 63° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS