Hamilton County, Indiana · Frost dates

Hamilton County frost dates.

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

Data confidence: high · USDA zone: 6a

32°F — light freeze

Last spring frost

10%
05-08
20%
05-02
50%
04-21
80%
04-11
90%
04-05

First fall frost

10%
10-06
20%
10-12
50%
10-21
80%
10-30
90%
11-02

28°F — killing freeze

Last spring freeze

10%
04-26
20%
04-19
50%
04-08
80%
03-31
90%
03-25

First fall freeze

10%
10-18
20%
10-23
50%
11-01
80%
11-09
90%
11-17

Growing season length (days, 28°F threshold)

Short year
175
Median
207
Long year
237

Source NOAA station

CARMEL 3 E, IN US

6.6 mi · 30 yrs of record (19912020) · 752 ft elev.

Data from CARMEL 3 E, IN US, 6.6 miles away with 30-year NOAA record (1991-2020).

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