Weather on July 18
Antioch, CA
55 Years of Data
Avg High
89°F
Avg Low
61°F
Warmest
1988
89°F avg
Coldest
2025
63°F avg
About This Date
July 18th in Antioch, CA typically brings warm summer weather, with average highs around 89°F and lows near 61°F — a 28°F daily swing. Over 55 years of records, the warmest July 18th was in 1988 (89°F average), while the coldest was 2025 (63°F) — a 26°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 July 18th 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 |
|---|---|---|---|---|---|
| 2025coldest | 75° | 52° | 63° | — | — |
| 2024 | 92° | 69° | 80° | — | — |
| 2023 | 84° | 72° | 78° | — | — |
| 2022 | 90° | 75° | 82° | — | — |
| 2021 | 95° | 61° | 78° | — | — |
| 2020 | 94° | 58° | 76° | — | — |
| 2019 | 89° | 64° | 77° | — | — |
| 2018 | 89° | 79° | 84° | — | — |
| 2017 | 81° | 66° | 73° | — | — |
| 2016 | 81° | 58° | 69° | — | — |
| 2015 | 88° | 61° | 74° | — | — |
| 2014 | 82° | 62° | 72° | — | — |
| 2013 | 99° | 56° | 77° | — | — |
| 2012 | 81° | — | — | — | — |
| 2011 | 87° | 60° | 74° | — | — |
| 2010 | 100° | 62° | 81° | — | — |
| 2009 | 101° | 64° | 82° | — | — |
| 2008 | 90° | 59° | 74° | — | — |
| 2007 | 79° | 60° | 69° | — | — |
| 2006 | 96° | 67° | 81° | — | — |
| 2005 | 102° | 62° | 82° | — | — |
| 2004 | 95° | 67° | 81° | — | — |
| 2003 | 103° | 67° | 85° | — | — |
| 2002 | 90° | 57° | 73° | — | — |
| 2001 | 79° | 62° | 70° | — | — |
| 2000 | 81° | 57° | 69° | — | — |
| 1999 | 85° | 51° | 68° | — | — |
| 1998 | 98° | 64° | 81° | — | — |
| 1997 | 91° | 60° | 76° | — | — |
| 1996 | 84° | 57° | 71° | — | — |
| 1995 | 83° | 63° | 73° | — | — |
| 1994 | 100° | 56° | 78° | — | — |
| 1993 | 92° | 64° | 78° | — | — |
| 1992 | 92° | 60° | 76° | — | — |
| 1991 | 88° | 57° | 72° | — | — |
| 1990 | 92° | 66° | 79° | — | — |
| 1989 | 96° | 70° | 83° | — | — |
| 1988warmest | 109° | 70° | 89° | — | — |
| 1987 | 73° | 56° | 64° | — | — |
| 1986 | 85° | 56° | 70° | — | — |
| 1985 | — | 54° | — | — | — |
| 1984 | 96° | 68° | 82° | — | — |
| 1983 | 80° | 58° | 69° | — | — |
| 1982 | 84° | 53° | 69° | — | — |
| 1981 | 87° | 51° | 69° | — | — |
| 1980 | 92° | 54° | 73° | — | — |
| 1979 | 95° | 55° | 75° | — | — |
| 1978 | — | 58° | — | — | — |
| 1977 | 100° | 60° | 80° | — | — |
| 1976 | 88° | 59° | 73° | — | — |
| 1975 | 83° | 56° | 69° | — | — |
| 1974 | 92° | 60° | 76° | — | — |
| 1973 | 81° | 51° | 66° | — | — |
| 1972 | 80° | 60° | 70° | — | — |
| 1971 | 78° | 65° | 71° | — | — |
55 years of data from ANTIOCH FIBREBRD MILLS