Linn County, Missouri · Frost dates
Linn County frost dates.
First-frost, last-frost, and growing-season length for Linn County, Missouri. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-02
- 20%
- 04-27
- 50%
- 04-15
- 80%
- 04-05
- 90%
- 04-01
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%
- 04-20
- 20%
- 04-14
- 50%
- 04-05
- 80%
- 03-26
- 90%
- 03-20
First fall freeze
- 10%
- 10-16
- 20%
- 10-21
- 50%
- 10-29
- 80%
- 11-07
- 90%
- 11-12
Growing season length (days, 28°F threshold)
- Short year
- 179
- Median
- 207
- Long year
- 237
Source NOAA station
CHILLICOTHE 22 ENE, MO US
2.1 mi · 30 yrs of record (1991–2020) · 833 ft elev.
Data from CHILLICOTHE 22 ENE, MO US, 2.1 miles away with 30-year NOAA record (1991-2020).
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