Fremont County, Iowa · Frost dates
Fremont County frost dates.
First-frost, last-frost, and growing-season length for Fremont County, Iowa. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-02
- 20%
- 04-29
- 50%
- 04-19
- 80%
- 04-09
- 90%
- 04-05
First fall frost
- 10%
- 10-01
- 20%
- 10-08
- 50%
- 10-19
- 80%
- 10-27
- 90%
- 10-31
28°F — killing freeze
Last spring freeze
- 10%
- 04-23
- 20%
- 04-19
- 50%
- 04-09
- 80%
- 03-31
- 90%
- 03-25
First fall freeze
- 10%
- 10-16
- 20%
- 10-20
- 50%
- 10-29
- 80%
- 11-06
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 176
- Median
- 203
- Long year
- 232
Source NOAA station
SIDNEY 1SSE, IA US
2.3 mi · 30 yrs of record (1991–2020) · 1140 ft elev.
Data from SIDNEY 1SSE, IA US, 2.3 miles away with 30-year NOAA record (1991-2020).
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