Bannock County, Idaho · Frost dates

Bannock County frost dates.

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

Data confidence: high · USDA zone: 5b

32°F — light freeze

Last spring frost

10%
06-10
20%
06-05
50%
05-23
80%
05-11
90%
05-06

First fall frost

10%
09-07
20%
09-13
50%
09-24
80%
10-02
90%
10-07

28°F — killing freeze

Last spring freeze

10%
05-21
20%
05-14
50%
05-04
80%
04-26
90%
04-20

First fall freeze

10%
09-20
20%
09-26
50%
10-04
80%
10-15
90%
10-19

Growing season length (days, 28°F threshold)

Short year
122
Median
153
Long year
182

Source NOAA station

MCCAMMON, ID US

3.3 mi · 30 yrs of record (19912020) · 4770 ft elev.

Data from MCCAMMON, ID US, 3.3 miles away with 30-year NOAA record (1991-2020).

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