Carter County, Oklahoma · Frost dates
Carter County frost dates.
First-frost, last-frost, and growing-season length for Carter County, Oklahoma. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-10
- 20%
- 04-03
- 50%
- 03-21
- 80%
- 03-09
- 90%
- 03-03
First fall frost
- 10%
- 10-24
- 20%
- 10-30
- 50%
- 11-08
- 80%
- 11-20
- 90%
- 11-28
28°F — killing freeze
Last spring freeze
- 10%
- 03-27
- 20%
- 03-19
- 50%
- 03-07
- 80%
- 02-25
- 90%
- 02-17
First fall freeze
- 10%
- 11-01
- 20%
- 11-06
- 50%
- 11-19
- 80%
- 12-02
- 90%
- 12-07
Growing season length (days, 28°F threshold)
- Short year
- 219
- Median
- 257
- Long year
- 293
Source NOAA station
ARDMORE 7WNW MESONET, OK US
5.2 mi · 30 yrs of record (1991–2020) · 928 ft elev.
Data from ARDMORE 7WNW MESONET, OK US, 5.2 miles away with 30-year NOAA record (1991-2020).
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