Collin County, Texas · Frost dates
Collin County frost dates.
First-frost, last-frost, and growing-season length for Collin County, Texas. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 04-05
- 20%
- 03-31
- 50%
- 03-17
- 80%
- 03-03
- 90%
- 02-27
First fall frost
- 10%
- 10-27
- 20%
- 11-02
- 50%
- 11-15
- 80%
- 11-30
- 90%
- 12-05
28°F — killing freeze
Last spring freeze
- 10%
- 03-24
- 20%
- 03-16
- 50%
- 03-04
- 80%
- 02-22
- 90%
- 02-15
First fall freeze
- 10%
- 11-06
- 20%
- 11-13
- 50%
- 11-30
- 80%
- 12-14
- 90%
- 12-23
Growing season length (days, 28°F threshold)
- Short year
- 227
- Median
- 271
- Long year
- 311
Source NOAA station
MCKINNEY MUNICIPAL AIRPORT, TX US
0.8 mi · 30 yrs of record (1991–2020) · 586 ft elev.
Data from MCKINNEY MUNICIPAL AIRPORT, TX US, 0.8 miles away with 30-year NOAA record (1991-2020).
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