Caribou County, Idaho · Frost dates

Caribou County frost dates.

First-frost, last-frost, and growing-season length for Caribou County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 5b

32°F — light freeze

Last spring frost

10%
20%
50%
80%
90%

First fall frost

10%
20%
50%
80%
90%

28°F — killing freeze

Last spring freeze

10%
06-21
20%
06-12
50%
05-27
80%
05-14
90%
05-07

First fall freeze

10%
08-28
20%
09-02
50%
09-12
80%
09-22
90%
09-28

Growing season length (days, 28°F threshold)

Short year
68
Median
108
Long year
144

Source NOAA station

SODA SPRINGS AP, ID US

9.5 mi · 30 yrs of record (19912020) · 5842 ft elev.

Data from SODA SPRINGS AP, ID US, 9.5 miles away with 30-year NOAA record (1991-2020).

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