Richland County, North Dakota · Frost dates
Richland County frost dates.
First-frost, last-frost, and growing-season length for Richland County, North Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-15
- 20%
- 05-11
- 50%
- 05-02
- 80%
- 04-25
- 90%
- 04-20
First fall frost
- 10%
- 09-25
- 20%
- 09-29
- 50%
- 10-06
- 80%
- 10-16
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-05
- 20%
- 05-01
- 50%
- 04-23
- 80%
- 04-13
- 90%
- 04-09
First fall freeze
- 10%
- 10-02
- 20%
- 10-07
- 50%
- 10-18
- 80%
- 10-26
- 90%
- 10-31
Growing season length (days, 28°F threshold)
- Short year
- 150
- Median
- 178
- Long year
- 205
Source NOAA station
LIDGERWOOD, ND US
16.6 mi · 30 yrs of record (1991–2020) · 1125 ft elev.
Data from LIDGERWOOD, ND US, 16.6 miles away with 30-year NOAA record (1991-2020).
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