Ventura County, California · Frost dates

Ventura County frost dates.

First-frost, last-frost, and growing-season length for Ventura County, California. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 9b

32°F — light freeze

Last spring frost

10%
04-15
20%
04-08
50%
03-21
80%
03-01
90%
02-20

First fall frost

10%
10-28
20%
11-02
50%
11-15
80%
11-28
90%
12-02

28°F — killing freeze

Last spring freeze

10%
03-15
20%
03-03
50%
02-17
80%
01-21
90%
01-08

First fall freeze

10%
11-12
20%
11-19
50%
12-01
80%
12-14
90%
12-22

Growing season length (days, 28°F threshold)

Short year
242
Median
287
Long year
348

Source NOAA station

OJAI, CA US

8.2 mi · 30 yrs of record (19912020) · 745 ft elev.

Data from OJAI, CA US, 8.2 miles away with 30-year NOAA record (1991-2020).

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