Stevens County, Washington · Frost dates
Stevens County frost dates.
First-frost, last-frost, and growing-season length for Stevens County, Washington. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 06-07
- 20%
- 05-31
- 50%
- 05-16
- 80%
- 05-05
- 90%
- 04-30
First fall frost
- 10%
- 09-01
- 20%
- 09-05
- 50%
- 09-15
- 80%
- 09-24
- 90%
- 09-29
28°F — killing freeze
Last spring freeze
- 10%
- 05-14
- 20%
- 05-08
- 50%
- 04-30
- 80%
- 04-18
- 90%
- 04-12
First fall freeze
- 10%
- 09-15
- 20%
- 09-19
- 50%
- 09-28
- 80%
- 10-07
- 90%
- 10-13
Growing season length (days, 28°F threshold)
- Short year
- 124
- Median
- 151
- Long year
- 184
Source NOAA station
CHEWELAH, WA US
9.5 mi · 30 yrs of record (1991–2020) · 1670 ft elev.
Data from CHEWELAH, WA US, 9.5 miles away with 30-year NOAA record (1991-2020).
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