Minidoka County, Idaho · Frost dates
Minidoka County frost dates.
First-frost, last-frost, and growing-season length for Minidoka County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 06-05
- 20%
- 05-30
- 50%
- 05-16
- 80%
- 05-05
- 90%
- 04-30
First fall frost
- 10%
- 09-13
- 20%
- 09-20
- 50%
- 10-01
- 80%
- 10-11
- 90%
- 10-16
28°F — killing freeze
Last spring freeze
- 10%
- 05-19
- 20%
- 05-12
- 50%
- 05-02
- 80%
- 04-22
- 90%
- 04-16
First fall freeze
- 10%
- 09-30
- 20%
- 10-04
- 50%
- 10-15
- 80%
- 10-24
- 90%
- 10-30
Growing season length (days, 28°F threshold)
- Short year
- 134
- Median
- 166
- Long year
- 197
Source NOAA station
MINIDOKA DAM, ID US
14.3 mi · 30 yrs of record (1991–2020) · 4164 ft elev.
Data from MINIDOKA DAM, ID US, 14.3 miles away with 30-year NOAA record (1991-2020).
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