Ottawa County, Ohio · Frost dates
Ottawa County frost dates.
First-frost, last-frost, and growing-season length for Ottawa County, Ohio. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-13
- 20%
- 05-07
- 50%
- 04-26
- 80%
- 04-15
- 90%
- 04-11
First fall frost
- 10%
- 10-08
- 20%
- 10-13
- 50%
- 10-23
- 80%
- 11-01
- 90%
- 11-04
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-25
- 50%
- 04-14
- 80%
- 04-03
- 90%
- 03-31
First fall freeze
- 10%
- 10-21
- 20%
- 10-26
- 50%
- 11-02
- 80%
- 11-13
- 90%
- 11-19
Growing season length (days, 28°F threshold)
- Short year
- 174
- Median
- 202
- Long year
- 233
Source NOAA station
FREMONT, OH US
15.7 mi · 30 yrs of record (1991–2020) · 600 ft elev.
Data from FREMONT, OH US, 15.7 miles away with 30-year NOAA record (1991-2020).
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