Kittitas County, Washington · Frost dates
Kittitas County frost dates.
First-frost, last-frost, and growing-season length for Kittitas County, Washington. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 05-12
- 20%
- 05-07
- 50%
- 04-28
- 80%
- 04-18
- 90%
- 04-13
First fall frost
- 10%
- 09-26
- 20%
- 10-01
- 50%
- 10-07
- 80%
- 10-17
- 90%
- 10-22
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-24
- 50%
- 04-11
- 80%
- 03-31
- 90%
- 03-24
First fall freeze
- 10%
- 10-07
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 10-30
- 90%
- 11-03
Growing season length (days, 28°F threshold)
- Short year
- 160
- Median
- 192
- Long year
- 224
Source NOAA station
ELLENSBURG BOWERS FLD, WA US
9.3 mi · 30 yrs of record (1991–2020) · 1766 ft elev.
Data from ELLENSBURG BOWERS FLD, WA US, 9.3 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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