Ransom County, North Dakota · Frost dates
Ransom County frost dates.
First-frost, last-frost, and growing-season length for Ransom County, North Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-23
- 20%
- 05-20
- 50%
- 05-12
- 80%
- 05-04
- 90%
- 04-30
First fall frost
- 10%
- 09-14
- 20%
- 09-19
- 50%
- 09-27
- 80%
- 10-04
- 90%
- 10-08
28°F — killing freeze
Last spring freeze
- 10%
- 05-15
- 20%
- 05-10
- 50%
- 05-03
- 80%
- 04-25
- 90%
- 04-20
First fall freeze
- 10%
- 09-23
- 20%
- 09-27
- 50%
- 10-04
- 80%
- 10-14
- 90%
- 10-18
Growing season length (days, 28°F threshold)
- Short year
- 131
- Median
- 154
- Long year
- 181
Source NOAA station
LISBON, ND US
2.2 mi · 30 yrs of record (1991–2020) · 1149 ft elev.
Data from LISBON, ND US, 2.2 miles away with 30-year NOAA record (1991-2020).
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