Delaware County, Oklahoma · Frost dates
Delaware County frost dates.
First-frost, last-frost, and growing-season length for Delaware County, Oklahoma. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 7a
32°F — light freeze
Last spring frost
- 10%
- 05-01
- 20%
- 04-27
- 50%
- 04-16
- 80%
- 04-06
- 90%
- 03-31
First fall frost
- 10%
- 10-06
- 20%
- 10-11
- 50%
- 10-20
- 80%
- 10-28
- 90%
- 11-01
28°F — killing freeze
Last spring freeze
- 10%
- 04-21
- 20%
- 04-15
- 50%
- 04-03
- 80%
- 03-22
- 90%
- 03-16
First fall freeze
- 10%
- 10-16
- 20%
- 10-20
- 50%
- 10-30
- 80%
- 11-07
- 90%
- 11-13
Growing season length (days, 28°F threshold)
- Short year
- 178
- Median
- 210
- Long year
- 242
Source NOAA station
UPPER SPAVINAW PORT, OK US
3.3 mi · 30 yrs of record (1991–2020) · 795 ft elev.
Data from UPPER SPAVINAW PORT, OK US, 3.3 miles away with 30-year NOAA record (1991-2020).
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