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 (1991–2020) · 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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