Yakima County, Washington · Frost dates

Yakima County frost dates.

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

Data confidence: high · USDA zone: 8b

32°F — light freeze

Last spring frost

10%
04-28
20%
04-22
50%
04-08
80%
03-30
90%
03-23

First fall frost

10%
10-09
20%
10-13
50%
10-23
80%
11-01
90%
11-05

28°F — killing freeze

Last spring freeze

10%
04-06
20%
03-31
50%
03-16
80%
03-05
90%
02-28

First fall freeze

10%
10-20
20%
10-25
50%
11-03
80%
11-15
90%
11-22

Growing season length (days, 28°F threshold)

Short year
197
Median
232
Long year
267

Source NOAA station

YAKIMA #2, WA US

12.1 mi · 30 yrs of record (19912020) · 1142 ft elev.

Data from YAKIMA #2, WA US, 12.1 miles away with 30-year NOAA record (1991-2020).

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