Musselshell County, Montana · Frost dates
Musselshell County frost dates.
First-frost, last-frost, and growing-season length for Musselshell County, Montana. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 06-02
- 20%
- 05-29
- 50%
- 05-20
- 80%
- 05-11
- 90%
- 05-06
First fall frost
- 10%
- 09-05
- 20%
- 09-10
- 50%
- 09-21
- 80%
- 09-30
- 90%
- 10-04
28°F — killing freeze
Last spring freeze
- 10%
- 05-21
- 20%
- 05-17
- 50%
- 05-07
- 80%
- 04-28
- 90%
- 04-24
First fall freeze
- 10%
- 09-18
- 20%
- 09-23
- 50%
- 10-01
- 80%
- 10-10
- 90%
- 10-15
Growing season length (days, 28°F threshold)
- Short year
- 120
- Median
- 147
- Long year
- 174
Source NOAA station
ROUNDUP, MT US
6.4 mi · 30 yrs of record (1991–2020) · 3200 ft elev.
Data from ROUNDUP, MT US, 6.4 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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