Buchanan County, Missouri · Frost dates
Buchanan County frost dates.
First-frost, last-frost, and growing-season length for Buchanan County, Missouri. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 6a
32°F — light freeze
Last spring frost
- 10%
- 05-03
- 20%
- 04-29
- 50%
- 04-19
- 80%
- 04-10
- 90%
- 04-05
First fall frost
- 10%
- 09-30
- 20%
- 10-06
- 50%
- 10-17
- 80%
- 10-26
- 90%
- 10-30
28°F — killing freeze
Last spring freeze
- 10%
- 04-24
- 20%
- 04-18
- 50%
- 04-09
- 80%
- 03-31
- 90%
- 03-25
First fall freeze
- 10%
- 10-13
- 20%
- 10-18
- 50%
- 10-26
- 80%
- 11-04
- 90%
- 11-08
Growing season length (days, 28°F threshold)
- Short year
- 172
- Median
- 200
- Long year
- 228
Source NOAA station
ST JOSEPH ROSECRANS AP, MO US
9.9 mi · 30 yrs of record (1991–2020) · 818 ft elev.
Data from ST JOSEPH ROSECRANS AP, MO US, 9.9 miles away with 30-year NOAA record (1991-2020).
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