Thomas County, Kansas · Frost dates
Thomas County frost dates.
First-frost, last-frost, and growing-season length for Thomas County, Kansas. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-15
- 20%
- 05-11
- 50%
- 05-02
- 80%
- 04-25
- 90%
- 04-20
First fall frost
- 10%
- 09-26
- 20%
- 09-30
- 50%
- 10-09
- 80%
- 10-17
- 90%
- 10-21
28°F — killing freeze
Last spring freeze
- 10%
- 05-07
- 20%
- 05-02
- 50%
- 04-23
- 80%
- 04-15
- 90%
- 04-11
First fall freeze
- 10%
- 10-04
- 20%
- 10-09
- 50%
- 10-18
- 80%
- 10-25
- 90%
- 10-29
Growing season length (days, 28°F threshold)
- Short year
- 150
- Median
- 178
- Long year
- 201
Source NOAA station
COLBY 1SW, KS US
2.5 mi · 30 yrs of record (1991–2020) · 3170 ft elev.
Data from COLBY 1SW, KS US, 2.5 miles away with 30-year NOAA record (1991-2020).
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