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 (19912020) · 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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