Williamson County, Texas · Frost dates
Williamson County frost dates.
First-frost, last-frost, and growing-season length for Williamson County, Texas. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 03-30
- 20%
- 03-22
- 50%
- 03-06
- 80%
- 02-22
- 90%
- 02-13
First fall frost
- 10%
- 11-05
- 20%
- 11-10
- 50%
- 11-24
- 80%
- 12-05
- 90%
- 12-10
28°F — killing freeze
Last spring freeze
- 10%
- 03-16
- 20%
- 03-09
- 50%
- 02-23
- 80%
- 02-02
- 90%
- 01-24
First fall freeze
- 10%
- 11-15
- 20%
- 11-22
- 50%
- 12-05
- 80%
- 12-22
- 90%
- 01-01
Growing season length (days, 28°F threshold)
- Short year
- 244
- Median
- 285
- Long year
- 342
Source NOAA station
GEORGETOWN LAKE, TX US
7.1 mi · 30 yrs of record (1991–2020) · 874 ft elev.
Data from GEORGETOWN LAKE, TX US, 7.1 miles away with 30-year NOAA record (1991-2020).
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