Alfalfa County, Oklahoma · Frost dates
Alfalfa County frost dates.
First-frost, last-frost, and growing-season length for Alfalfa County, Oklahoma. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 04-26
- 20%
- 04-20
- 50%
- 04-10
- 80%
- 04-01
- 90%
- 03-26
First fall frost
- 10%
- 10-17
- 20%
- 10-20
- 50%
- 10-29
- 80%
- 11-06
- 90%
- 11-13
28°F — killing freeze
Last spring freeze
- 10%
- 04-16
- 20%
- 04-11
- 50%
- 04-01
- 80%
- 03-19
- 90%
- 03-12
First fall freeze
- 10%
- 10-21
- 20%
- 10-27
- 50%
- 11-05
- 80%
- 11-15
- 90%
- 11-19
Growing season length (days, 28°F threshold)
- Short year
- 188
- Median
- 218
- Long year
- 252
Source NOAA station
CHEROKEE 1SSW MESONET, OK US
2.5 mi · 30 yrs of record (1991–2020) · 1187 ft elev.
Data from CHEROKEE 1SSW MESONET, OK US, 2.5 miles away with 30-year NOAA record (1991-2020).
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