Benewah County, Idaho · Frost dates
Benewah County frost dates.
First-frost, last-frost, and growing-season length for Benewah County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-13
- 50%
- 05-03
- 80%
- 04-25
- 90%
- 04-20
First fall frost
- 10%
- 09-18
- 20%
- 09-24
- 50%
- 10-04
- 80%
- 10-14
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-02
- 20%
- 04-28
- 50%
- 04-14
- 80%
- 04-01
- 90%
- 03-26
First fall freeze
- 10%
- 10-02
- 20%
- 10-07
- 50%
- 10-19
- 80%
- 11-01
- 90%
- 11-06
Growing season length (days, 28°F threshold)
- Short year
- 153
- Median
- 188
- Long year
- 225
Source NOAA station
SAINT MARIES, ID US
7.2 mi · 30 yrs of record (1991–2020) · 2151 ft elev.
Data from SAINT MARIES, ID US, 7.2 miles away with 30-year NOAA record (1991-2020).
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