Weather on August 27
Antioch, CA
55 Years of Data
Avg High
88°F
Avg Low
60°F
Warmest
2017
92°F avg
Coldest
1973
65°F avg
About This Date
August 27th in Antioch, CA typically brings warm summer weather, with average highs around 88°F and lows near 60°F — a 28°F daily swing. Over 55 years of records, the warmest August 27th was in 2017 (92°F average), while the coldest was 1973 (65°F) — a 27°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for August 27th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 54° | 66° | — | — |
| 2024 | 93° | 74° | 83° | — | — |
| 2023 | 85° | 63° | 74° | — | — |
| 2022 | 80° | 66° | 73° | — | — |
| 2021 | 98° | 62° | 80° | — | — |
| 2020 | 85° | 56° | 70° | — | — |
| 2019 | 97° | 63° | 80° | — | — |
| 2018 | 75° | 59° | 67° | — | — |
| 2017warmest | 102° | 82° | 92° | — | — |
| 2016 | 80° | 58° | 69° | — | — |
| 2015 | 99° | 67° | 83° | — | — |
| 2014 | 91° | 60° | 76° | — | — |
| 2013 | 90° | 60° | 75° | — | — |
| 2012 | 81° | 55° | 68° | — | — |
| 2011 | 89° | 57° | 73° | — | — |
| 2010 | 86° | 57° | 72° | — | — |
| 2009 | 94° | 66° | 80° | — | — |
| 2008 | 101° | 62° | 81° | — | — |
| 2007 | 87° | 58° | 72° | — | — |
| 2006 | 86° | 56° | 71° | — | — |
| 2005 | 88° | 75° | 81° | — | — |
| 2004 | 95° | 61° | 78° | — | — |
| 2003 | 88° | 56° | 72° | — | — |
| 2002 | 98° | 65° | 81° | — | — |
| 2001 | 98° | 70° | 84° | — | — |
| 2000 | 89° | 57° | 73° | — | — |
| 1999 | 95° | 69° | 82° | — | — |
| 1998 | 87° | 66° | 77° | — | — |
| 1997 | 87° | 60° | 74° | — | — |
| 1996 | 78° | 59° | 69° | — | — |
| 1995 | 84° | 55° | 70° | — | — |
| 1994 | 86° | 58° | 72° | — | — |
| 1993 | 95° | 66° | 81° | — | — |
| 1992 | 96° | 58° | 77° | — | — |
| 1991 | 85° | 54° | 69° | — | — |
| 1990 | 79° | 58° | 68° | — | — |
| 1989 | 86° | 54° | 70° | — | — |
| 1988 | 104° | 62° | 83° | — | — |
| 1987 | 88° | — | — | — | — |
| 1986 | 91° | 63° | 77° | — | — |
| 1985 | 91° | 61° | 76° | — | — |
| 1984 | 86° | 58° | 72° | — | — |
| 1983 | 89° | 55° | 72° | — | — |
| 1982 | 84° | 53° | 69° | — | — |
| 1981 | 95° | 58° | 76° | — | — |
| 1980 | 82° | 48° | 65° | — | — |
| 1979 | 93° | 68° | 81° | — | — |
| 1978 | 80° | 51° | 66° | — | — |
| 1977 | 85° | 59° | 72° | — | — |
| 1976 | 91° | 59° | 75° | — | — |
| 1975 | 76° | 58° | 67° | — | — |
| 1974 | 85° | 57° | 71° | — | — |
| 1973coldest | 77° | 54° | 65° | — | — |
| 1972 | 86° | 59° | 73° | — | — |
| 1971 | 82° | 58° | 70° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS