Gilliam County, Oregon · Frost dates
Gilliam County frost dates.
First-frost, last-frost, and growing-season length for Gilliam County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 05-27
- 20%
- 05-21
- 50%
- 05-10
- 80%
- 04-30
- 90%
- 04-25
First fall frost
- 10%
- 09-21
- 20%
- 09-28
- 50%
- 10-07
- 80%
- 10-18
- 90%
- 10-24
28°F — killing freeze
Last spring freeze
- 10%
- 05-12
- 20%
- 05-06
- 50%
- 04-25
- 80%
- 04-10
- 90%
- 03-31
First fall freeze
- 10%
- 10-07
- 20%
- 10-12
- 50%
- 10-24
- 80%
- 11-03
- 90%
- 11-10
Growing season length (days, 28°F threshold)
- Short year
- 148
- Median
- 182
- Long year
- 224
Source NOAA station
CONDON, OR US
10.9 mi · 30 yrs of record (1991–2020) · 2881 ft elev.
Data from CONDON, OR US, 10.9 miles away with 30-year NOAA record (1991-2020).
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