Grundy County, Missouri · Frost dates
Grundy County frost dates.
First-frost, last-frost, and growing-season length for Grundy County, Missouri. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 04-29
- 20%
- 04-25
- 50%
- 04-16
- 80%
- 04-06
- 90%
- 04-03
First fall frost
- 10%
- 10-05
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 10-28
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-21
- 20%
- 04-16
- 50%
- 04-06
- 80%
- 03-29
- 90%
- 03-22
First fall freeze
- 10%
- 10-16
- 20%
- 10-21
- 50%
- 10-29
- 80%
- 11-05
- 90%
- 11-11
Growing season length (days, 28°F threshold)
- Short year
- 178
- Median
- 206
- Long year
- 234
Source NOAA station
TRENTON, MO US
3.1 mi · 30 yrs of record (1991–2020) · 837 ft elev.
Data from TRENTON, MO US, 3.1 miles away with 30-year NOAA record (1991-2020).
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