Weather on September 17
Ventura, CA
55 Years of Data
Avg High
84°F
Avg Low
53°F
Warmest
2014
87°F avg
Coldest
2024
57°F avg
About This Date
September 17th 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 17th was in 2014 (87°F average), while the coldest was 2024 (57°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 2% of September 17th dates historically. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for September 17th 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 | 97° | 56° | 76° | — | — |
| 2024coldest | 72° | 42° | 57° | — | — |
| 2023 | 77° | 59° | 68° | — | — |
| 2022 | 83° | 50° | 66° | — | — |
| 2021 | 77° | 45° | 61° | — | — |
| 2020 | 97° | 47° | 72° | — | — |
| 2019 | 84° | 49° | 66° | — | — |
| 2018 | 91° | 43° | 67° | — | — |
| 2017 | 80° | 50° | 65° | — | — |
| 2016 | 85° | 46° | 65° | — | — |
| 2015 | 76° | 49° | 62° | — | — |
| 2014warmest | 107° | 66° | 87° | — | — |
| 2013 | 89° | 47° | 68° | — | — |
| 2012 | 84° | 55° | 70° | — | — |
| 2011 | 73° | 54° | 63° | — | — |
| 2010 | 79° | 46° | 62° | — | — |
| 2009 | 95° | 55° | 75° | — | — |
| 2008 | 88° | 55° | 71° | — | — |
| 2007 | 70° | 50° | 60° | — | — |
| 2006 | 84° | 54° | 69° | — | — |
| 2005 | 77° | 48° | 63° | — | — |
| 2004 | 77° | 54° | 65° | — | — |
| 2003 | 79° | 52° | 65° | — | — |
| 2002 | 82° | 50° | 66° | — | — |
| 2001 | 77° | 52° | 64° | — | — |
| 2000 | 95° | 59° | 77° | — | — |
| 1999 | 78° | 55° | 67° | — | — |
| 1998 | 91° | 48° | 70° | — | — |
| 1997 | 88° | 56° | 72° | — | — |
| 1996 | 86° | 49° | 67° | — | — |
| 1995 | 84° | 57° | 71° | — | — |
| 1994 | 88° | 53° | 70° | — | — |
| 1993 | 76° | 53° | 64° | — | — |
| 1992 | 96° | 58° | 77° | — | — |
| 1991 | 100° | 50° | 75° | — | — |
| 1990 | 80° | 51° | 66° | — | — |
| 1989 | 73° | 59° | 66° | 0.13" | — |
| 1988 | 72° | 52° | 62° | — | — |
| 1987 | 82° | 54° | 68° | — | — |
| 1986 | 84° | 52° | 68° | — | — |
| 1985 | 76° | 47° | 61° | — | — |
| 1984 | 97° | 70° | 83° | — | — |
| 1983 | 91° | 59° | 75° | — | — |
| 1982 | 77° | 52° | 64° | — | — |
| 1981 | 98° | 55° | 77° | — | — |
| 1980 | 96° | 57° | 77° | — | — |
| 1979 | 100° | 51° | 76° | — | — |
| 1978 | 69° | 52° | 60° | — | — |
| 1977 | 78° | 45° | 61° | — | — |
| 1976 | 75° | 51° | 63° | — | — |
| 1975 | 94° | 62° | 78° | — | — |
| 1974 | 93° | 48° | 71° | — | — |
| 1973 | 77° | 53° | 65° | — | — |
| 1972 | 80° | 48° | 64° | — | — |
| 1971 | 78° | 66° | 72° | — | — |
55 years of data from OJAI CALIFORNIA