Oglala Lakota County, South Dakota · Frost dates
Oglala Lakota County frost dates.
First-frost, last-frost, and growing-season length for Oglala Lakota County, South Dakota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4b
32°F — light freeze
Last spring frost
- 10%
- 05-24
- 20%
- 05-19
- 50%
- 05-09
- 80%
- 05-01
- 90%
- 04-27
First fall frost
- 10%
- 09-20
- 20%
- 09-24
- 50%
- 10-04
- 80%
- 10-13
- 90%
- 10-17
28°F — killing freeze
Last spring freeze
- 10%
- 05-13
- 20%
- 05-08
- 50%
- 04-30
- 80%
- 04-20
- 90%
- 04-15
First fall freeze
- 10%
- 09-28
- 20%
- 10-04
- 50%
- 10-14
- 80%
- 10-23
- 90%
- 10-27
Growing season length (days, 28°F threshold)
- Short year
- 138
- Median
- 167
- Long year
- 195
Source NOAA station
MANDERSON 3 NE, SD US
7.9 mi · 30 yrs of record (1991–2020) · 3095 ft elev.
Data from MANDERSON 3 NE, SD US, 7.9 miles away with 30-year NOAA record (1991-2020).
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