Calhoun County, Texas · Frost dates
Calhoun County frost dates.
First-frost, last-frost, and growing-season length for Calhoun County, Texas. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 03-06
- 20%
- 02-28
- 50%
- 02-04
- 80%
- 01-09
- 90%
- 12-29
First fall frost
- 10%
- 11-20
- 20%
- 11-30
- 50%
- 12-27
- 80%
- 01-20
- 90%
- 02-04
28°F — killing freeze
Last spring freeze
- 10%
- 03-01
- 20%
- 02-19
- 50%
- 01-27
- 80%
- 12-28
- 90%
- 12-15
First fall freeze
- 10%
- 11-27
- 20%
- 12-09
- 50%
- 01-04
- 80%
- 02-04
- 90%
- 02-20
Growing season length (days, 28°F threshold)
- Short year
- 271
- Median
- 342
- Long year
- 432
Source NOAA station
PORT O'CONNOR, TX US
9.2 mi · 30 yrs of record (1991–2020) · 5 ft elev.
Data from PORT O'CONNOR, TX US, 9.2 miles away with 30-year NOAA record (1991-2020).
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