Union County, North Carolina · Frost dates
Union County frost dates.
First-frost, last-frost, and growing-season length for Union County, North Carolina. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7b
32°F — light freeze
Last spring frost
- 10%
- 04-18
- 20%
- 04-13
- 50%
- 04-03
- 80%
- 03-23
- 90%
- 03-17
First fall frost
- 10%
- 10-21
- 20%
- 10-25
- 50%
- 11-01
- 80%
- 11-09
- 90%
- 11-14
28°F — killing freeze
Last spring freeze
- 10%
- 04-07
- 20%
- 04-02
- 50%
- 03-23
- 80%
- 03-10
- 90%
- 03-01
First fall freeze
- 10%
- 10-30
- 20%
- 11-01
- 50%
- 11-10
- 80%
- 11-22
- 90%
- 11-29
Growing season length (days, 28°F threshold)
- Short year
- 206
- Median
- 232
- Long year
- 273
Source NOAA station
MONROE 2 SE, NC US
0.9 mi · 30 yrs of record (1991–2020) · 550 ft elev.
Data from MONROE 2 SE, NC US, 0.9 miles away with 30-year NOAA record (1991-2020).
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