Navajo County, Arizona · Frost dates
Navajo County frost dates.
First-frost, last-frost, and growing-season length for Navajo County, Arizona. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: moderate · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 06-05
- 20%
- 05-31
- 50%
- 05-16
- 80%
- 05-03
- 90%
- 04-29
First fall frost
- 10%
- 09-29
- 20%
- 10-02
- 50%
- 10-10
- 80%
- 10-19
- 90%
- 10-24
28°F — killing freeze
Last spring freeze
- 10%
- 05-20
- 20%
- 05-13
- 50%
- 05-01
- 80%
- 04-20
- 90%
- 04-14
First fall freeze
- 10%
- 10-06
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 11-01
- 90%
- 11-05
Growing season length (days, 28°F threshold)
- Short year
- 139
- Median
- 172
- Long year
- 205
Source NOAA station
KEAMS CANYON, AZ US
29.9 mi · 30 yrs of record (1991–2020) · 6205 ft elev.
Nearest qualifying NOAA station is KEAMS CANYON, AZ US, 29.9 miles away. Local frost dates may vary by 1–2 weeks from these averages.
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