Weather on September 18
Ventura, CA
55 Years of Data
Avg High
84°F
Avg Low
53°F
Warmest
1984
84°F avg
Coldest
1999
53°F avg
About This Date
September 18th in Ventura, CA typically brings warm fall weather, with average highs around 84°F and lows near 53°F — a 31°F daily swing. Over 55 years of records, the warmest September 18th was in 1984 (84°F average), while the coldest was 1999 (53°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 18th 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 18th in Ventura, 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 | 95° | 64° | 80° | 0.28" | — |
| 2024 | 74° | 42° | 58° | — | — |
| 2023 | 71° | 61° | 66° | — | — |
| 2022 | 80° | 54° | 67° | — | — |
| 2021 | 79° | 42° | 60° | — | — |
| 2020 | 97° | 57° | 77° | — | — |
| 2019 | 84° | 48° | 66° | — | — |
| 2018 | 89° | 42° | 66° | — | — |
| 2017 | 76° | 49° | 62° | — | — |
| 2016 | 93° | 49° | 71° | — | — |
| 2015 | 84° | 49° | 66° | — | — |
| 2014 | 97° | 56° | 76° | — | — |
| 2013 | 83° | 48° | 65° | — | — |
| 2012 | 88° | 52° | 70° | — | — |
| 2011 | 86° | 50° | 68° | — | — |
| 2010 | 82° | 48° | 65° | — | — |
| 2009 | 93° | 57° | 75° | — | — |
| 2008 | 86° | 57° | 72° | — | — |
| 2007 | 73° | 50° | 62° | — | — |
| 2006 | 86° | 50° | 68° | — | — |
| 2005 | 75° | 50° | 63° | — | — |
| 2004 | 75° | 54° | 64° | — | — |
| 2003 | 86° | 52° | 69° | — | — |
| 2002 | 77° | 55° | 66° | — | — |
| 2001 | 77° | 54° | 65° | — | — |
| 2000 | 97° | 57° | 77° | — | — |
| 1999coldest | 65° | 41° | 53° | — | — |
| 1998 | 87° | 52° | 69° | — | — |
| 1997 | 95° | 56° | 75° | — | — |
| 1996 | 83° | 49° | 66° | — | — |
| 1995 | 86° | 50° | 68° | — | — |
| 1994 | — | 54° | — | — | — |
| 1993 | 79° | 45° | 62° | — | — |
| 1992 | 92° | 58° | 75° | — | — |
| 1991 | 95° | 55° | 75° | — | — |
| 1990 | 73° | 50° | 62° | — | — |
| 1989 | 82° | 59° | 71° | — | — |
| 1988 | 76° | 50° | 63° | — | — |
| 1987 | 85° | 55° | 70° | — | — |
| 1986 | 84° | 56° | 70° | — | — |
| 1985 | 71° | 45° | 58° | — | — |
| 1984warmest | 101° | 68° | 84° | — | — |
| 1983 | 91° | 58° | 74° | — | — |
| 1982 | 82° | 62° | 72° | — | — |
| 1981 | 94° | 55° | 74° | — | — |
| 1980 | 91° | 56° | 73° | — | — |
| 1979 | 105° | 56° | 80° | — | — |
| 1978 | 80° | 43° | 61° | — | — |
| 1977 | 85° | 52° | 68° | — | — |
| 1976 | 79° | 51° | 65° | — | — |
| 1975 | 90° | 59° | 74° | — | — |
| 1974 | 87° | 52° | 69° | — | — |
| 1973 | 77° | 49° | 63° | — | — |
| 1972 | 80° | 50° | 65° | — | — |
| 1971 | 84° | 57° | 71° | — | — |
55 years of data from OJAI CALIFORNIA