Golden Valley County, Montana · Frost dates
Golden Valley County frost dates.
First-frost, last-frost, and growing-season length for Golden Valley County, Montana. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 05-30
- 20%
- 05-25
- 50%
- 05-17
- 80%
- 05-08
- 90%
- 05-03
First fall frost
- 10%
- 09-10
- 20%
- 09-14
- 50%
- 09-23
- 80%
- 10-02
- 90%
- 10-06
28°F — killing freeze
Last spring freeze
- 10%
- 05-19
- 20%
- 05-14
- 50%
- 05-05
- 80%
- 04-27
- 90%
- 04-22
First fall freeze
- 10%
- 09-19
- 20%
- 09-24
- 50%
- 10-03
- 80%
- 10-12
- 90%
- 10-16
Growing season length (days, 28°F threshold)
- Short year
- 123
- Median
- 151
- Long year
- 177
Source NOAA station
RYEGATE, MT US
6.9 mi · 30 yrs of record (1991–2020) · 3650 ft elev.
Data from RYEGATE, MT US, 6.9 miles away with 30-year NOAA record (1991-2020).
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