Canyon County, Idaho · Frost dates
Canyon County frost dates.
First-frost, last-frost, and growing-season length for Canyon County, Idaho. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5b
32°F — light freeze
Last spring frost
- 10%
- 05-09
- 20%
- 05-03
- 50%
- 04-23
- 80%
- 04-11
- 90%
- 04-05
First fall frost
- 10%
- 10-02
- 20%
- 10-08
- 50%
- 10-18
- 80%
- 10-27
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-25
- 20%
- 04-18
- 50%
- 04-05
- 80%
- 03-23
- 90%
- 03-15
First fall freeze
- 10%
- 10-17
- 20%
- 10-21
- 50%
- 10-30
- 80%
- 11-09
- 90%
- 11-15
Growing season length (days, 28°F threshold)
- Short year
- 175
- Median
- 208
- Long year
- 245
Source NOAA station
DEER FLAT DAM, ID US
3.9 mi · 30 yrs of record (1991–2020) · 2510 ft elev.
Data from DEER FLAT DAM, ID US, 3.9 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.