Mercer County, West Virginia · Frost dates

Mercer County frost dates.

First-frost, last-frost, and growing-season length for Mercer County, West Virginia. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 6b

32°F — light freeze

Last spring frost

10%
05-19
20%
05-13
50%
04-30
80%
04-18
90%
04-14

First fall frost

10%
09-27
20%
10-02
50%
10-10
80%
10-18
90%
10-22

28°F — killing freeze

Last spring freeze

10%
05-11
20%
05-02
50%
04-16
80%
04-07
90%
04-03

First fall freeze

10%
10-04
20%
10-10
50%
10-19
80%
10-28
90%
11-01

Growing season length (days, 28°F threshold)

Short year
146
Median
186
Long year
212

Source NOAA station

ATHENS, WV US

4.6 mi · 30 yrs of record (19912020) · 2495 ft elev.

Data from ATHENS, WV US, 4.6 miles away with 30-year NOAA record (1991-2020).

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