Weather on August 17
Antioch, CA
55 Years of Data
Avg High
89°F
Avg Low
60°F
Warmest
2020
90°F avg
Coldest
2024
62°F avg
About This Date
August 17th in Antioch, CA typically brings warm summer weather, with average highs around 89°F and lows near 60°F — a 29°F daily swing. Over 54 years of records, the warmest August 17th was in 2020 (90°F average), while the coldest was 2024 (62°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. 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 August 17th in Antioch, CA? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.8°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 57° | 63° | — | — |
| 2024coldest | 70° | 55° | 62° | — | — |
| 2023 | 89° | 70° | 79° | — | — |
| 2022 | 88° | 77° | 82° | — | — |
| 2021 | 92° | 65° | 78° | — | — |
| 2020warmest | 102° | 78° | 90° | — | — |
| 2019 | 88° | 61° | 74° | — | — |
| 2018 | 95° | 61° | 78° | — | — |
| 2017 | 80° | 57° | 69° | — | — |
| 2016 | 91° | 56° | 73° | — | — |
| 2015 | 100° | 67° | 83° | — | — |
| 2014 | 91° | 58° | 74° | — | — |
| 2013 | 90° | 63° | 76° | — | — |
| 2012 | 83° | 68° | 75° | — | — |
| 2011 | 92° | 70° | 81° | — | — |
| 2010 | 86° | 55° | 71° | — | — |
| 2009 | 94° | 58° | 76° | — | — |
| 2008 | 83° | 58° | 70° | — | — |
| 2007 | 88° | 57° | 72° | — | — |
| 2006 | 91° | 55° | 73° | — | — |
| 2005 | 83° | 65° | 74° | — | — |
| 2004 | 95° | 63° | 79° | — | — |
| 2003 | 94° | 60° | 77° | — | — |
| 2002 | 91° | 54° | 72° | — | — |
| 2001 | 90° | 73° | 81° | — | — |
| 2000 | 98° | 61° | 79° | — | — |
| 1999 | 87° | 58° | 72° | — | — |
| 1998 | 90° | 60° | 75° | — | — |
| 1997 | 84° | 57° | 71° | — | — |
| 1996 | 98° | 54° | 76° | — | — |
| 1995 | 86° | 59° | 73° | — | — |
| 1994 | 97° | 60° | 78° | — | — |
| 1992 | 101° | 61° | 81° | — | — |
| 1991 | 88° | 55° | 71° | — | — |
| 1990 | 82° | 64° | 73° | — | — |
| 1989 | 86° | 57° | 72° | — | — |
| 1988 | 93° | 60° | 77° | — | — |
| 1987 | 90° | 58° | 74° | — | — |
| 1986 | 81° | 55° | 68° | — | — |
| 1985 | 83° | 57° | 70° | — | — |
| 1984 | 91° | 60° | 76° | — | — |
| 1983 | 99° | 61° | 80° | — | — |
| 1982 | 93° | 55° | 74° | — | — |
| 1981 | 96° | 54° | 75° | — | — |
| 1980 | 85° | 55° | 70° | — | — |
| 1979 | 86° | 54° | 70° | — | — |
| 1978 | 86° | 52° | 69° | — | — |
| 1977 | 90° | 61° | 75° | — | — |
| 1976 | 75° | 52° | 63° | — | — |
| 1975 | 84° | 54° | 69° | — | — |
| 1974 | 86° | — | — | — | — |
| 1973 | 89° | 60° | 75° | — | — |
| 1972 | 80° | 59° | 70° | — | — |
| 1971 | 89° | 59° | 74° | — | — |
54 years of data from ANTIOCH FIBREBRD MILLS