Coconino County, Arizona · Frost dates
Coconino County frost dates.
First-frost, last-frost, and growing-season length for Coconino County, Arizona. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 05-24
- 20%
- 05-20
- 50%
- 05-10
- 80%
- 04-30
- 90%
- 04-23
First fall frost
- 10%
- 10-07
- 20%
- 10-12
- 50%
- 10-20
- 80%
- 10-31
- 90%
- 11-05
28°F — killing freeze
Last spring freeze
- 10%
- 05-14
- 20%
- 05-08
- 50%
- 04-26
- 80%
- 04-11
- 90%
- 04-04
First fall freeze
- 10%
- 10-18
- 20%
- 10-23
- 50%
- 11-02
- 80%
- 11-11
- 90%
- 11-16
Growing season length (days, 28°F threshold)
- Short year
- 157
- Median
- 190
- Long year
- 226
Source NOAA station
GRAND CANYON E ENTRANCE, AZ US
14.6 mi · 30 yrs of record (1991–2020) · 7480 ft elev.
Data from GRAND CANYON E ENTRANCE, AZ US, 14.6 miles away with 30-year NOAA record (1991-2020).
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