Shoshone County, Idaho · Frost dates
Shoshone County frost dates.
First-frost, last-frost, and growing-season length for Shoshone County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 06-19
- 20%
- 06-01
- 50%
- 05-12
- 80%
- 05-01
- 90%
- 04-26
First fall frost
- 10%
- 09-12
- 20%
- 09-19
- 50%
- 09-30
- 80%
- 10-11
- 90%
- 10-17
28°F — killing freeze
Last spring freeze
- 10%
- 05-12
- 20%
- 05-05
- 50%
- 04-24
- 80%
- 04-10
- 90%
- 04-01
First fall freeze
- 10%
- 09-27
- 20%
- 10-02
- 50%
- 10-14
- 80%
- 10-27
- 90%
- 11-04
Growing season length (days, 28°F threshold)
- Short year
- 138
- Median
- 173
- Long year
- 217
Source NOAA station
MULLAN, ID US
8.9 mi · 30 yrs of record (1991–2020) · 3201 ft elev.
Data from MULLAN, ID US, 8.9 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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