Dean weather by month
What a typical year looks like in Dean, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Wichita Falls Municipal Airport, 11 km from Dean; records cover 1923–2026.
The year at a glance
- Precipitation a year
- 27.9 in708 mm
- Snow a year
- 3 in8 cm
- Last spring freeze
- Mar 21
- First fall freeze
- Nov 12
- Heating degree days
- 2,897
- Cooling degree days
- 2,446
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 17°−8° (heating, 99%) and 107°42° (cooling, 1%).
Month by month
Dean in January
Highs average 55°13° and lows 30°−1°, with 1.2 in30 mm of precipitation and 0.7 in1.8 cm of snow in a typical January.
- Record high
- 87°31° (1943)
- Record low
- −12°−24° (1947)
- Heating degree days
- 703
- Cooling degree days
- 1
Dean in February
Highs average 59°15° and lows 34°1°, with 1.4 in36 mm of precipitation and 1.1 in2.8 cm of snow in a typical February.
- Record high
- 94°34° (2017)
- Record low
- −8°−22° (1985)
- Heating degree days
- 527
- Cooling degree days
- 3
Dean in March
Highs average 68°20° and lows 42°5°, with 2 in51 mm of precipitation and 0.2 in0.5 cm of snow in a typical March.
- Record high
- 100°38° (1971)
- Record low
- 6°−14° (1948)
- Heating degree days
- 339
- Cooling degree days
- 21
Dean in April
Highs average 76°24° and lows 50°10°, with 2.5 in64 mm of precipitation in a typical April.
- Record high
- 103°39° (2011)
- Record low
- 24°−4° (1975)
- Heating degree days
- 137
- Cooling degree days
- 71
Dean in May
Highs average 84°29° and lows 60°15°, with 3.8 in97 mm of precipitation in a typical May.
- Record high
- 110°43° (2000)
- Record low
- 35°2° (2014)
- Heating degree days
- 25
- Cooling degree days
- 236
Dean in June
Highs average 92°33° and lows 68°20°, with 3.4 in85 mm of precipitation in a typical June.
- Record high
- 117°47° (1980)
- Record low
- 50°10° (1928)
- Heating degree days
- 0
- Cooling degree days
- 455
Dean in July
Highs average 97°36° and lows 72°22°, with 2 in51 mm of precipitation in a typical July.
- Record high
- 115°46° (2022)
- Record low
- 54°12° (1924)
- Heating degree days
- 0
- Cooling degree days
- 611
Dean in August
Highs average 97°36° and lows 72°22°, with 2.5 in64 mm of precipitation in a typical August.
- Record high
- 113°45° (1936)
- Record low
- 53°12° (1992)
- Heating degree days
- 0
- Cooling degree days
- 590
Dean in September
Highs average 88°31° and lows 64°18°, with 3 in76 mm of precipitation in a typical September.
- Record high
- 112°44° (2023)
- Record low
- 38°3° (1942)
- Heating degree days
- 10
- Cooling degree days
- 341
Dean in OctoberThis month
Highs average 77°25° and lows 52°11°, with 2.9 in73 mm of precipitation in a typical October.
- Record high
- 102°39° (1938)
- Record low
- 21°−6° (1993)
- Heating degree days
- 116
- Cooling degree days
- 104
Dean in November
Highs average 65°18° and lows 40°5°, with 1.6 in41 mm of precipitation and 0.3 in0.8 cm of snow in a typical November.
- Record high
- 92°33° (2025)
- Record low
- 14°−10° (1950)
- Heating degree days
- 381
- Cooling degree days
- 12
Dean in December
Highs average 56°13° and lows 32°0°, with 1.6 in40 mm of precipitation and 0.8 in2 cm of snow in a typical December.
- Record high
- 91°33° (2021)
- Record low
- −7°−22° (1989)
- Heating degree days
- 659
- Cooling degree days
- 1