Marion County, Ohio · Frost dates
Marion County frost dates.
First-frost, last-frost, and growing-season length for Marion County, Ohio. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-11
- 20%
- 05-06
- 50%
- 04-25
- 80%
- 04-16
- 90%
- 04-11
First fall frost
- 10%
- 10-05
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 10-29
- 90%
- 11-02
28°F — killing freeze
Last spring freeze
- 10%
- 05-03
- 20%
- 04-24
- 50%
- 04-14
- 80%
- 04-03
- 90%
- 03-30
First fall freeze
- 10%
- 10-18
- 20%
- 10-22
- 50%
- 11-01
- 80%
- 11-09
- 90%
- 11-14
Growing season length (days, 28°F threshold)
- Short year
- 168
- Median
- 201
- Long year
- 229
Source NOAA station
MARION 2 N, OH US
2.7 mi · 30 yrs of record (1991–2020) · 965 ft elev.
Data from MARION 2 N, OH US, 2.7 miles away with 30-year NOAA record (1991-2020).
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