McKenzie County, North Dakota · Frost dates

McKenzie County frost dates.

First-frost, last-frost, and growing-season length for McKenzie County, North Dakota. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 4a

32°F — light freeze

Last spring frost

10%
05-22
20%
05-17
50%
05-09
80%
05-02
90%
04-28

First fall frost

10%
09-15
20%
09-20
50%
09-27
80%
10-06
90%
10-11

28°F — killing freeze

Last spring freeze

10%
05-13
20%
05-08
50%
04-30
80%
04-19
90%
04-16

First fall freeze

10%
09-23
20%
09-27
50%
10-07
80%
10-18
90%
10-22

Growing season length (days, 28°F threshold)

Short year
133
Median
160
Long year
189

Source NOAA station

WATFORD CITY, ND US

6.8 mi · 30 yrs of record (19912020) · 2170 ft elev.

Data from WATFORD CITY, ND US, 6.8 miles away with 30-year NOAA record (1991-2020).

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