Temperature for September
In Oxnard, CA during September the average high temperature is 74.4°F. The hottest day on record was September 23, 1944 when the temperature hit 104.4°F.
Precipitation for September
In September the average monthly rainfall in Oxnard, CA is 0.02 inches with rain usually falling on between 2 and 3 days. 1945 was the driest September with only 0.00 inches of rain falling, and 2005 was the wettest September with 0.30 inches of rain. The wettest single day in September was 27 September 2005 when 0.21 inches of rain fell.
In September there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in September.