McLean County, North Dakota · Frost dates
McLean County frost dates.
First-frost, last-frost, and growing-season length for McLean County, North Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-24
- 20%
- 05-20
- 50%
- 05-12
- 80%
- 05-04
- 90%
- 04-30
First fall frost
- 10%
- 09-17
- 20%
- 09-22
- 50%
- 09-30
- 80%
- 10-07
- 90%
- 10-12
28°F — killing freeze
Last spring freeze
- 10%
- 05-15
- 20%
- 05-11
- 50%
- 05-02
- 80%
- 04-24
- 90%
- 04-18
First fall freeze
- 10%
- 09-24
- 20%
- 09-29
- 50%
- 10-08
- 80%
- 10-18
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 132
- Median
- 159
- Long year
- 188
Source NOAA station
GARRISON, ND US
0.1 mi · 30 yrs of record (1991–2020) · 1932 ft elev.
Data from GARRISON, ND US, 0.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.