Bryan County, Oklahoma · Frost dates
Bryan County frost dates.
First-frost, last-frost, and growing-season length for Bryan County, Oklahoma. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-07
- 20%
- 04-01
- 50%
- 03-19
- 80%
- 03-06
- 90%
- 03-01
First fall frost
- 10%
- 10-28
- 20%
- 11-01
- 50%
- 11-12
- 80%
- 11-26
- 90%
- 12-01
28°F — killing freeze
Last spring freeze
- 10%
- 03-24
- 20%
- 03-17
- 50%
- 03-05
- 80%
- 02-22
- 90%
- 02-12
First fall freeze
- 10%
- 11-05
- 20%
- 11-10
- 50%
- 11-24
- 80%
- 12-05
- 90%
- 12-13
Growing season length (days, 28°F threshold)
- Short year
- 226
- Median
- 264
- Long year
- 304
Source NOAA station
DURANT 6SSE MESONET, OK US
4.3 mi · 30 yrs of record (1991–2020) · 646 ft elev.
Data from DURANT 6SSE MESONET, OK US, 4.3 miles away with 30-year NOAA record (1991-2020).
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