McPherson County, South Dakota · Frost dates
McPherson County frost dates.
First-frost, last-frost, and growing-season length for McPherson County, South Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 05-22
- 20%
- 05-18
- 50%
- 05-10
- 80%
- 05-02
- 90%
- 04-28
First fall frost
- 10%
- 09-19
- 20%
- 09-23
- 50%
- 09-30
- 80%
- 10-08
- 90%
- 10-12
28°F — killing freeze
Last spring freeze
- 10%
- 05-14
- 20%
- 05-09
- 50%
- 05-01
- 80%
- 04-21
- 90%
- 04-16
First fall freeze
- 10%
- 09-26
- 20%
- 10-01
- 50%
- 10-09
- 80%
- 10-17
- 90%
- 10-21
Growing season length (days, 28°F threshold)
- Short year
- 135
- Median
- 161
- Long year
- 188
Source NOAA station
ABERDEEN 35 WNW, SD US
6.4 mi · 30 yrs of record (1991–2020) · 1957 ft elev.
Data from ABERDEEN 35 WNW, SD US, 6.4 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.