Johnson County, Indiana · Frost dates
Johnson County frost dates.
First-frost, last-frost, and growing-season length for Johnson County, Indiana. 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%
- 04-20
- 80%
- 04-11
- 90%
- 04-07
First fall frost
- 10%
- 10-07
- 20%
- 10-11
- 50%
- 10-19
- 80%
- 10-27
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-24
- 20%
- 04-19
- 50%
- 04-08
- 80%
- 03-31
- 90%
- 03-25
First fall freeze
- 10%
- 10-17
- 20%
- 10-21
- 50%
- 10-29
- 80%
- 11-06
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 176
- Median
- 204
- Long year
- 232
Source NOAA station
FRANKLIN WWTP, IN US
3.4 mi · 30 yrs of record (1991–2020) · 720 ft elev.
Data from FRANKLIN WWTP, IN US, 3.4 miles away with 30-year NOAA record (1991-2020).
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