Simpson County, Mississippi · Frost dates
Simpson County frost dates.
First-frost, last-frost, and growing-season length for Simpson County, Mississippi. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8a
32°F — light freeze
Last spring frost
- 10%
- 04-01
- 20%
- 03-25
- 50%
- 03-10
- 80%
- 02-25
- 90%
- 02-17
First fall frost
- 10%
- 10-31
- 20%
- 11-04
- 50%
- 11-16
- 80%
- 12-01
- 90%
- 12-07
28°F — killing freeze
Last spring freeze
- 10%
- 03-16
- 20%
- 03-09
- 50%
- 02-23
- 80%
- 02-03
- 90%
- 01-26
First fall freeze
- 10%
- 11-10
- 20%
- 11-16
- 50%
- 12-01
- 80%
- 12-26
- 90%
- 01-05
Growing season length (days, 28°F threshold)
- Short year
- 239
- Median
- 281
- Long year
- 344
Source NOAA station
D'LO 2 SW, MS US
3.7 mi · 30 yrs of record (1991–2020) · 334 ft elev.
Data from D'LO 2 SW, MS US, 3.7 miles away with 30-year NOAA record (1991-2020).
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