Union County, South Carolina · Frost dates
Union County frost dates.
First-frost, last-frost, and growing-season length for Union County, South Carolina. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8a
32°F — light freeze
Last spring frost
- 10%
- 04-21
- 20%
- 04-17
- 50%
- 04-06
- 80%
- 03-27
- 90%
- 03-21
First fall frost
- 10%
- 10-17
- 20%
- 10-22
- 50%
- 10-30
- 80%
- 11-06
- 90%
- 11-12
28°F — killing freeze
Last spring freeze
- 10%
- 04-11
- 20%
- 04-05
- 50%
- 03-26
- 80%
- 03-15
- 90%
- 03-06
First fall freeze
- 10%
- 10-26
- 20%
- 10-31
- 50%
- 11-09
- 80%
- 11-22
- 90%
- 11-29
Growing season length (days, 28°F threshold)
- Short year
- 198
- Median
- 228
- Long year
- 268
Source NOAA station
UNION 8 S, SC US
6.5 mi · 30 yrs of record (1991–2020) · 480 ft elev.
Data from UNION 8 S, SC US, 6.5 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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