Park County, Montana · Frost dates

Park County frost dates.

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

Data confidence: high · USDA zone: 4b

32°F — light freeze

Last spring frost

10%
06-11
20%
06-02
50%
05-19
80%
05-09
90%
05-05

First fall frost

10%
09-07
20%
09-13
50%
09-25
80%
10-03
90%
10-07

28°F — killing freeze

Last spring freeze

10%
05-19
20%
05-14
50%
05-04
80%
04-24
90%
04-18

First fall freeze

10%
09-21
20%
09-26
50%
10-05
80%
10-15
90%
10-21

Growing season length (days, 28°F threshold)

Short year
125
Median
154
Long year
186

Source NOAA station

LIVINGSTON 12 S, MT US

2.5 mi · 30 yrs of record (19912020) · 5044 ft elev.

Data from LIVINGSTON 12 S, MT US, 2.5 miles away with 30-year NOAA record (1991-2020).

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