Amador County, California · Frost dates

Amador County frost dates.

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

Data confidence: high · USDA zone: 9b

32°F — light freeze

Last spring frost

10%
04-08
20%
03-31
50%
03-04
80%
01-21
90%
01-06

First fall frost

10%
11-19
20%
11-27
50%
12-11
80%
12-26
90%
01-04

28°F — killing freeze

Last spring freeze

10%
03-02
20%
02-02
50%
01-10
80%
12-26
90%
12-14

First fall freeze

10%
12-02
20%
12-09
50%
12-27
80%
01-12
90%
01-26

Growing season length (days, 28°F threshold)

Short year
275
Median
351
Long year
408

Source NOAA station

SUTTER HILL CDF, CA US

9.2 mi · 30 yrs of record (19912020) · 1586 ft elev.

Data from SUTTER HILL CDF, CA US, 9.2 miles away with 30-year NOAA record (1991-2020).

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