Keokuk County, Iowa · Frost dates
Keokuk County frost dates.
First-frost, last-frost, and growing-season length for Keokuk County, Iowa. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-09
- 20%
- 05-04
- 50%
- 04-24
- 80%
- 04-14
- 90%
- 04-09
First fall frost
- 10%
- 09-30
- 20%
- 10-05
- 50%
- 10-15
- 80%
- 10-23
- 90%
- 10-27
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-24
- 50%
- 04-12
- 80%
- 04-03
- 90%
- 03-31
First fall freeze
- 10%
- 10-12
- 20%
- 10-16
- 50%
- 10-24
- 80%
- 11-01
- 90%
- 11-04
Growing season length (days, 28°F threshold)
- Short year
- 165
- Median
- 195
- Long year
- 218
Source NOAA station
SIGOURNEY, IA US
3.1 mi · 30 yrs of record (1991–2020) · 732 ft elev.
Data from SIGOURNEY, IA US, 3.1 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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