Weather on September 16
Antioch, CA
55 Years of Data
Avg High
83°F
Avg Low
56°F
Warmest
1971
87°F avg
Coldest
2015
54°F avg
About This Date
September 16th in Antioch, CA typically brings warm fall weather, with average highs around 83°F and lows near 56°F — a 27°F daily swing. Over 55 years of records, the warmest September 16th was in 1971 (87°F average), while the coldest was 2015 (54°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 5% of September 16th dates historically. The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.8°F cooler on this date compared to 20-30 years ago.
Planning for September 16th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 91° | 73° | 82° | — | — |
| 2024 | 66° | 51° | 59° | — | — |
| 2023 | 67° | 55° | 61° | — | — |
| 2022 | 79° | 57° | 68° | — | — |
| 2021 | 70° | 49° | 59° | — | — |
| 2020 | 87° | 59° | 73° | — | — |
| 2019 | 76° | 62° | 69° | 0.25" | — |
| 2018 | 72° | 53° | 62° | — | — |
| 2017 | 76° | 62° | 69° | — | — |
| 2016 | 86° | 54° | 70° | — | — |
| 2015coldest | 67° | 41° | 54° | — | — |
| 2014 | 87° | 63° | 75° | — | — |
| 2013 | 84° | 59° | 72° | — | — |
| 2012 | 86° | 56° | 71° | — | — |
| 2011 | 88° | 59° | 73° | — | — |
| 2010 | 86° | 59° | 73° | — | — |
| 2009 | 88° | 60° | 74° | — | — |
| 2008 | 83° | 54° | 68° | — | — |
| 2007 | 79° | 56° | 67° | — | — |
| 2006 | 79° | 55° | 67° | — | — |
| 2005 | 78° | 54° | 66° | — | — |
| 2004 | 94° | 61° | 77° | — | — |
| 2003 | 82° | 61° | 71° | — | — |
| 2002 | 86° | 56° | 71° | — | — |
| 2001 | 81° | 53° | 67° | — | — |
| 2000 | 87° | 56° | 71° | — | — |
| 1999 | 84° | 53° | 69° | — | — |
| 1998 | 92° | 57° | 74° | — | — |
| 1997 | 81° | 55° | 68° | — | — |
| 1996 | 77° | 56° | 66° | — | — |
| 1995 | 89° | 54° | 71° | — | — |
| 1994 | 93° | 60° | 77° | — | — |
| 1993 | 77° | 52° | 64° | — | — |
| 1992 | 84° | 51° | 68° | — | — |
| 1991 | 91° | 56° | 73° | — | — |
| 1990 | 83° | 56° | 69° | — | — |
| 1989 | 89° | 64° | 77° | — | — |
| 1988 | 83° | 51° | 67° | — | — |
| 1987 | 84° | 64° | 74° | — | — |
| 1986 | 75° | 55° | 65° | 0.28" | — |
| 1985 | 85° | 52° | 68° | — | — |
| 1984 | 92° | 55° | 73° | — | — |
| 1983 | 98° | 55° | 77° | — | — |
| 1982 | 69° | 55° | 62° | 0.38" | — |
| 1981 | 87° | 53° | 70° | — | — |
| 1980 | 80° | 51° | 66° | — | — |
| 1979 | 103° | 62° | 82° | — | — |
| 1978 | 90° | 55° | 72° | — | — |
| 1977 | 72° | 53° | 62° | — | — |
| 1976 | 80° | 52° | 66° | — | — |
| 1975 | 84° | 51° | 68° | — | — |
| 1974 | 80° | 55° | 68° | — | — |
| 1973 | 81° | 51° | 66° | — | — |
| 1972 | 71° | 51° | 61° | — | — |
| 1971warmest | 105° | 68° | 87° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS