Collinsville weather by month
What a typical year looks like in Collinsville, Texas: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Gainesville 5 Ene, 17 km from Collinsville; records cover 1987–2026.
The year at a glance
- Precipitation a year
- 42.8 in1086 mm
- Snow a year
- 2.6 in6.6 cm
- Last spring freeze
- Mar 16
- First fall freeze
- Nov 16
- Heating degree days
- 2,885
- Cooling degree days
- 2,257
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 16°−9° (heating, 99%) and 105°41° (cooling, 1%).
Month by month
Collinsville in January
Highs average 53°11° and lows 32°0°, with 2.2 in56 mm of precipitation and 1.3 in3.3 cm of snow in a typical January.
- Record high
- 82°28° (2023)
- Record low
- 5°−15° (2024)
- Heating degree days
- 708
- Cooling degree days
- 0
Collinsville in February
Highs average 58°14° and lows 35°2°, with 2.6 in65 mm of precipitation and 0.3 in0.8 cm of snow in a typical February.
- Record high
- 95°35° (1996)
- Record low
- −6°−21° (2021)
- Heating degree days
- 520
- Cooling degree days
- 2
Collinsville in March
Highs average 66°19° and lows 43°6°, with 3.7 in93 mm of precipitation and 0.6 in1.5 cm of snow in a typical March.
- Record high
- 93°34° (2006)
- Record low
- 9°−13° (2014)
- Heating degree days
- 351
- Cooling degree days
- 15
Collinsville in April
Highs average 74°23° and lows 51°10°, with 3.9 in100 mm of precipitation in a typical April.
- Record high
- 99°37° (2006)
- Record low
- 29°−2° (1994)
- Heating degree days
- 142
- Cooling degree days
- 56
Collinsville in May
Highs average 80°27° and lows 60°16°, with 5.6 in143 mm of precipitation in a typical May.
- Record high
- 98°37° (2003)
- Record low
- 33°1° (2013)
- Heating degree days
- 32
- Cooling degree days
- 189
Collinsville in June
Highs average 89°31° and lows 69°20°, with 4.6 in118 mm of precipitation in a typical June.
- Record high
- 103°39° (2009)
- Record low
- 52°11° (1998)
- Heating degree days
- 1
- Cooling degree days
- 408
Collinsville in July
Highs average 94°34° and lows 73°23°, with 2.9 in74 mm of precipitation in a typical July.
- Record high
- 113°45° (2018)
- Record low
- 59°15° (1987)
- Heating degree days
- 0
- Cooling degree days
- 563
Collinsville in August
Highs average 94°35° and lows 72°22°, with 2.8 in72 mm of precipitation in a typical August.
- Record high
- 113°45° (2011)
- Record low
- 56°13° (1989)
- Heating degree days
- 0
- Cooling degree days
- 567
Collinsville in September
Highs average 87°30° and lows 65°18°, with 3.9 in99 mm of precipitation in a typical September.
- Record high
- 112°44° (2000)
- Record low
- 40°4° (1989)
- Heating degree days
- 9
- Cooling degree days
- 334
Collinsville in OctoberThis month
Highs average 76°24° and lows 54°12°, with 4.4 in111 mm of precipitation in a typical October.
- Record high
- 100°38° (1998)
- Record low
- 23°−5° (1993)
- Heating degree days
- 111
- Cooling degree days
- 109
Collinsville in November
Highs average 64°18° and lows 43°6°, with 3 in77 mm of precipitation and 0.1 in0.3 cm of snow in a typical November.
- Record high
- 91°33° (2017)
- Record low
- 17°−8° (1993)
- Heating degree days
- 370
- Cooling degree days
- 13
Collinsville in December
Highs average 55°13° and lows 34°1°, with 3.1 in79 mm of precipitation and 0.3 in0.8 cm of snow in a typical December.
- Record high
- 83°28° (2025)
- Record low
- −7°−22° (1989)
- Heating degree days
- 641
- Cooling degree days
- 1