Bennett County, South Dakota · Frost dates
Bennett County frost dates.
First-frost, last-frost, and growing-season length for Bennett County, South Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 05-27
- 20%
- 05-22
- 50%
- 05-13
- 80%
- 05-04
- 90%
- 04-30
First fall frost
- 10%
- 09-18
- 20%
- 09-23
- 50%
- 10-02
- 80%
- 10-11
- 90%
- 10-15
28°F — killing freeze
Last spring freeze
- 10%
- 05-17
- 20%
- 05-10
- 50%
- 05-02
- 80%
- 04-23
- 90%
- 04-18
First fall freeze
- 10%
- 09-30
- 20%
- 10-04
- 50%
- 10-12
- 80%
- 10-20
- 90%
- 10-24
Growing season length (days, 28°F threshold)
- Short year
- 136
- Median
- 163
- Long year
- 189
Source NOAA station
MARTIN, SD US
3.1 mi · 30 yrs of record (1991–2020) · 3330 ft elev.
Data from MARTIN, SD US, 3.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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