Gem County, Idaho · Frost dates
Gem County frost dates.
First-frost, last-frost, and growing-season length for Gem 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%
- 06-13
- 50%
- 05-31
- 80%
- 05-15
- 90%
- 05-08
First fall frost
- 10%
- 09-02
- 20%
- 09-06
- 50%
- 09-16
- 80%
- 09-26
- 90%
- 09-30
28°F — killing freeze
Last spring freeze
- 10%
- 05-30
- 20%
- 05-21
- 50%
- 05-07
- 80%
- 04-27
- 90%
- 04-23
First fall freeze
- 10%
- 09-14
- 20%
- 09-19
- 50%
- 09-29
- 80%
- 10-08
- 90%
- 10-13
Growing season length (days, 28°F threshold)
- Short year
- 107
- Median
- 145
- Long year
- 173
Source NOAA station
OLA, ID US
9.8 mi · 30 yrs of record (1991–2020) · 3075 ft elev.
Data from OLA, ID US, 9.8 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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