Johnston County, Oklahoma · Frost dates
Johnston County frost dates.
First-frost, last-frost, and growing-season length for Johnston County, Oklahoma. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-16
- 20%
- 04-08
- 50%
- 03-29
- 80%
- 03-15
- 90%
- 03-09
First fall frost
- 10%
- 10-21
- 20%
- 10-26
- 50%
- 11-05
- 80%
- 11-15
- 90%
- 11-21
28°F — killing freeze
Last spring freeze
- 10%
- 04-03
- 20%
- 03-28
- 50%
- 03-13
- 80%
- 02-28
- 90%
- 02-24
First fall freeze
- 10%
- 10-29
- 20%
- 11-04
- 50%
- 11-14
- 80%
- 11-28
- 90%
- 12-03
Growing season length (days, 28°F threshold)
- Short year
- 209
- Median
- 246
- Long year
- 282
Source NOAA station
TISHOMINGO 6N MESONET, OK US
1.9 mi · 30 yrs of record (1991–2020) · 879 ft elev.
Data from TISHOMINGO 6N MESONET, OK US, 1.9 miles away with 30-year NOAA record (1991-2020).
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