Adair County, Missouri · Frost dates

Adair County frost dates.

First-frost, last-frost, and growing-season length for Adair County, Missouri. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6a

32°F — light freeze

Last spring frost

10%
05-05
20%
05-01
50%
04-21
80%
04-12
90%
04-07

First fall frost

10%
10-02
20%
10-09
50%
10-19
80%
10-27
90%
10-31

28°F — killing freeze

Last spring freeze

10%
04-27
20%
04-21
50%
04-10
80%
03-31
90%
03-25

First fall freeze

10%
10-15
20%
10-20
50%
10-29
80%
11-05
90%
11-10

Growing season length (days, 28°F threshold)

Short year
171
Median
202
Long year
230

Source NOAA station

KIRKSVILLE, MO US

1.8 mi · 30 yrs of record (19912020) · 970 ft elev.

Data from KIRKSVILLE, MO US, 1.8 miles away with 30-year NOAA record (1991-2020).

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