Sioux County, Nebraska · Frost dates
Sioux County frost dates.
First-frost, last-frost, and growing-season length for Sioux County, Nebraska. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 06-14
- 20%
- 06-07
- 50%
- 05-27
- 80%
- 05-17
- 90%
- 05-12
First fall frost
- 10%
- 08-26
- 20%
- 09-01
- 50%
- 09-11
- 80%
- 09-21
- 90%
- 09-26
28°F — killing freeze
Last spring freeze
- 10%
- 05-31
- 20%
- 05-24
- 50%
- 05-14
- 80%
- 05-04
- 90%
- 04-30
First fall freeze
- 10%
- 09-06
- 20%
- 09-11
- 50%
- 09-23
- 80%
- 10-01
- 90%
- 10-05
Growing season length (days, 28°F threshold)
- Short year
- 98
- Median
- 132
- Long year
- 158
Source NOAA station
HARRISON 20 SSE, NE US
3.2 mi · 30 yrs of record (1991–2020) · 4406 ft elev.
Data from HARRISON 20 SSE, NE US, 3.2 miles away with 30-year NOAA record (1991-2020).
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