Portage County, Ohio · Frost dates

Portage County frost dates.

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

Data confidence: high · USDA zone: 6a

32°F — light freeze

Last spring frost

10%
05-07
20%
05-01
50%
04-21
80%
04-12
90%
04-08

First fall frost

10%
10-14
20%
10-20
50%
10-29
80%
11-05
90%
11-10

28°F — killing freeze

Last spring freeze

10%
04-24
20%
04-19
50%
04-09
80%
04-01
90%
03-28

First fall freeze

10%
10-28
20%
11-01
50%
11-08
80%
11-19
90%
11-24

Growing season length (days, 28°F threshold)

Short year
187
Median
213
Long year
241

Source NOAA station

RAVENNA 2 S, OH US

5.1 mi · 30 yrs of record (19912020) · 1107 ft elev.

Data from RAVENNA 2 S, OH US, 5.1 miles away with 30-year NOAA record (1991-2020).

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