Grant County, Oregon · Frost dates
Grant County frost dates.
First-frost, last-frost, and growing-season length for Grant County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 06-15
- 20%
- 06-08
- 50%
- 05-28
- 80%
- 05-16
- 90%
- 05-12
First fall frost
- 10%
- 09-02
- 20%
- 09-07
- 50%
- 09-18
- 80%
- 09-29
- 90%
- 10-04
28°F — killing freeze
Last spring freeze
- 10%
- 05-24
- 20%
- 05-18
- 50%
- 05-08
- 80%
- 04-30
- 90%
- 04-25
First fall freeze
- 10%
- 09-13
- 20%
- 09-19
- 50%
- 10-01
- 80%
- 10-10
- 90%
- 10-16
Growing season length (days, 28°F threshold)
- Short year
- 112
- Median
- 146
- Long year
- 174
Source NOAA station
JOHN DAY, OR US
5.7 mi · 30 yrs of record (1991–2020) · 3063 ft elev.
Data from JOHN DAY, OR US, 5.7 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
14-day free trial. No credit card. Cancel anytime.