Hancock County, Iowa · Frost dates
Hancock County frost dates.
First-frost, last-frost, and growing-season length for Hancock County, Iowa. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-10
- 20%
- 05-05
- 50%
- 04-29
- 80%
- 04-18
- 90%
- 04-14
First fall frost
- 10%
- 09-24
- 20%
- 09-29
- 50%
- 10-07
- 80%
- 10-15
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-02
- 20%
- 04-27
- 50%
- 04-18
- 80%
- 04-08
- 90%
- 04-04
First fall freeze
- 10%
- 10-04
- 20%
- 10-08
- 50%
- 10-17
- 80%
- 10-26
- 90%
- 10-30
Growing season length (days, 28°F threshold)
- Short year
- 155
- Median
- 182
- Long year
- 209
Source NOAA station
BRITT 3E, IA US
2.1 mi · 30 yrs of record (1991–2020) · 1220 ft elev.
Data from BRITT 3E, IA US, 2.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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