Towner County, North Dakota · Frost dates
Towner County frost dates.
First-frost, last-frost, and growing-season length for Towner County, North Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-31
- 20%
- 05-28
- 50%
- 05-20
- 80%
- 05-13
- 90%
- 05-08
First fall frost
- 10%
- 09-14
- 20%
- 09-19
- 50%
- 09-26
- 80%
- 10-02
- 90%
- 10-08
28°F — killing freeze
Last spring freeze
- 10%
- 05-24
- 20%
- 05-19
- 50%
- 05-11
- 80%
- 05-03
- 90%
- 04-30
First fall freeze
- 10%
- 09-21
- 20%
- 09-26
- 50%
- 10-03
- 80%
- 10-13
- 90%
- 10-18
Growing season length (days, 28°F threshold)
- Short year
- 120
- Median
- 145
- Long year
- 171
Source NOAA station
ROLLA 1NE, ND US
20.6 mi · 30 yrs of record (1991–2020) · 1833 ft elev.
Data from ROLLA 1NE, ND US, 20.6 miles away with 30-year NOAA record (1991-2020).
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