Jackson County, Oregon · Frost dates
Jackson County frost dates.
First-frost, last-frost, and growing-season length for Jackson County, Oregon. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 04-30
- 20%
- 04-23
- 50%
- 04-08
- 80%
- 03-25
- 90%
- 03-17
First fall frost
- 10%
- 10-14
- 20%
- 10-19
- 50%
- 10-29
- 80%
- 11-08
- 90%
- 11-16
28°F — killing freeze
Last spring freeze
- 10%
- 04-03
- 20%
- 03-27
- 50%
- 03-10
- 80%
- 02-23
- 90%
- 02-16
First fall freeze
- 10%
- 10-26
- 20%
- 10-31
- 50%
- 11-13
- 80%
- 12-01
- 90%
- 12-09
Growing season length (days, 28°F threshold)
- Short year
- 206
- Median
- 248
- Long year
- 296
Source NOAA station
MEDFORD ROGUE VLY AP, OR US
10.3 mi · 30 yrs of record (1991–2020) · 1297 ft elev.
Data from MEDFORD ROGUE VLY AP, OR US, 10.3 miles away with 30-year NOAA record (1991-2020).
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