Buffalo County, South Dakota · Frost dates
Buffalo County frost dates.
First-frost, last-frost, and growing-season length for Buffalo County, South Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 05-19
- 20%
- 05-14
- 50%
- 05-06
- 80%
- 04-28
- 90%
- 04-23
First fall frost
- 10%
- 09-20
- 20%
- 09-24
- 50%
- 10-01
- 80%
- 10-09
- 90%
- 10-13
28°F — killing freeze
Last spring freeze
- 10%
- 05-09
- 20%
- 05-05
- 50%
- 04-28
- 80%
- 04-17
- 90%
- 04-13
First fall freeze
- 10%
- 09-25
- 20%
- 09-30
- 50%
- 10-09
- 80%
- 10-19
- 90%
- 10-24
Growing season length (days, 28°F threshold)
- Short year
- 139
- Median
- 164
- Long year
- 194
Source NOAA station
GANN VALLEY 4NW, SD US
6.6 mi · 30 yrs of record (1991–2020) · 1720 ft elev.
Data from GANN VALLEY 4NW, SD US, 6.6 miles away with 30-year NOAA record (1991-2020).
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