Douglas County, Washington · Frost dates

Douglas County frost dates.

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

Data confidence: high · USDA zone: 8b

32°F — light freeze

Last spring frost

10%
04-30
20%
04-27
50%
04-17
80%
04-08
90%
04-03

First fall frost

10%
10-09
20%
10-13
50%
10-22
80%
10-31
90%
11-05

28°F — killing freeze

Last spring freeze

10%
04-15
20%
04-08
50%
03-29
80%
03-16
90%
03-11

First fall freeze

10%
10-21
20%
10-25
50%
11-04
80%
11-13
90%
11-18

Growing season length (days, 28°F threshold)

Short year
189
Median
220
Long year
252

Source NOAA station

CHELAN, WA US

15.6 mi · 30 yrs of record (19912020) · 1194 ft elev.

Data from CHELAN, WA US, 15.6 miles away with 30-year NOAA record (1991-2020).

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