Wibaux County, Montana · Frost dates
Wibaux County frost dates.
First-frost, last-frost, and growing-season length for Wibaux County, Montana. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 06-13
- 20%
- 06-05
- 50%
- 05-27
- 80%
- 05-18
- 90%
- 05-15
First fall frost
- 10%
- 09-02
- 20%
- 09-05
- 50%
- 09-16
- 80%
- 09-25
- 90%
- 09-29
28°F — killing freeze
Last spring freeze
- 10%
- 06-01
- 20%
- 05-26
- 50%
- 05-17
- 80%
- 05-08
- 90%
- 05-04
First fall freeze
- 10%
- 09-10
- 20%
- 09-16
- 50%
- 09-26
- 80%
- 10-05
- 90%
- 10-10
Growing season length (days, 28°F threshold)
- Short year
- 101
- Median
- 132
- Long year
- 159
Source NOAA station
WIBAUX 2 E, MT US
5.8 mi · 30 yrs of record (1991–2020) · 2696 ft elev.
Data from WIBAUX 2 E, MT US, 5.8 miles away with 30-year NOAA record (1991-2020).
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