Shelby County, Indiana · Frost dates
Shelby County frost dates.
First-frost, last-frost, and growing-season length for Shelby County, Indiana. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-03
- 20%
- 04-28
- 50%
- 04-17
- 80%
- 04-07
- 90%
- 04-03
First fall frost
- 10%
- 10-09
- 20%
- 10-13
- 50%
- 10-22
- 80%
- 10-30
- 90%
- 11-04
28°F — killing freeze
Last spring freeze
- 10%
- 04-22
- 20%
- 04-16
- 50%
- 04-05
- 80%
- 03-28
- 90%
- 03-22
First fall freeze
- 10%
- 10-19
- 20%
- 10-24
- 50%
- 11-01
- 80%
- 11-12
- 90%
- 11-17
Growing season length (days, 28°F threshold)
- Short year
- 180
- Median
- 210
- Long year
- 240
Source NOAA station
SHELBYVILLE SEWAGE PLT, IN US
0.3 mi · 30 yrs of record (1991–2020) · 752 ft elev.
Data from SHELBYVILLE SEWAGE PLT, IN US, 0.3 miles away with 30-year NOAA record (1991-2020).
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