Harris County, Texas · Frost dates
Harris County frost dates.
First-frost, last-frost, and growing-season length for Harris County, Texas. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 8b
32°F — light freeze
Last spring frost
- 10%
- 03-12
- 20%
- 03-04
- 50%
- 02-13
- 80%
- 01-24
- 90%
- 01-12
First fall frost
- 10%
- 11-17
- 20%
- 11-25
- 50%
- 12-09
- 80%
- 01-01
- 90%
- 01-11
28°F — killing freeze
Last spring freeze
- 10%
- 03-02
- 20%
- 02-18
- 50%
- 01-27
- 80%
- 01-07
- 90%
- 12-26
First fall freeze
- 10%
- 12-02
- 20%
- 12-11
- 50%
- 01-02
- 80%
- 01-20
- 90%
- 02-02
Growing season length (days, 28°F threshold)
- Short year
- 275
- Median
- 340
- Long year
- 403
Source NOAA station
HOUSTON INTERCONT AP, TX US
8.7 mi · 30 yrs of record (1991–2020) · 95 ft elev.
Data from HOUSTON INTERCONT AP, TX US, 8.7 miles away with 30-year NOAA record (1991-2020).
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