Collinsville weather by month
What a typical year looks like in Collinsville, Mississippi: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Meridian Key Field, 19 km from Collinsville; records cover 1889–2026.
The year at a glance
- Precipitation a year
- 57 in1448 mm
- Snow a year
- 0.6 in1.5 cm
- Last spring freeze
- Mar 22
- First fall freeze
- Nov 7
- Heating degree days
- 2,116
- Cooling degree days
- 2,478
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 20°−7° (heating, 99%) and 99°37° (cooling, 1%).
Month by month
Collinsville in January
Highs average 59°15° and lows 36°2°, with 5.6 in142 mm of precipitation and 0.2 in0.5 cm of snow in a typical January.
- Record high
- 83°28° (1949)
- Record low
- 0°−18° (1962)
- Heating degree days
- 541
- Cooling degree days
- 5
Collinsville in February
Highs average 64°18° and lows 40°4°, with 5.4 in136 mm of precipitation in a typical February.
- Record high
- 86°30° (2018)
- Record low
- −6°−21° (1899)
- Heating degree days
- 382
- Cooling degree days
- 11
Collinsville in March
Highs average 71°22° and lows 46°8°, with 5.7 in144 mm of precipitation and 0.3 in0.8 cm of snow in a typical March.
- Record high
- 93°34° (1929)
- Record low
- 15°−9° (1943)
- Heating degree days
- 237
- Cooling degree days
- 37
Collinsville in April
Highs average 78°26° and lows 53°11°, with 5.6 in141 mm of precipitation in a typical April.
- Record high
- 95°35° (1987)
- Record low
- 28°−2° (1891)
- Heating degree days
- 85
- Cooling degree days
- 97
Collinsville in May
Highs average 85°30° and lows 61°16°, with 4.2 in107 mm of precipitation in a typical May.
- Record high
- 99°37° (1951)
- Record low
- 38°3° (1960)
- Heating degree days
- 10
- Cooling degree days
- 268
Collinsville in June
Highs average 91°33° and lows 69°21°, with 4.6 in118 mm of precipitation in a typical June.
- Record high
- 104°40° (1988)
- Record low
- 42°6° (1984)
- Heating degree days
- 0
- Cooling degree days
- 448
Collinsville in July
Highs average 93°34° and lows 72°22°, with 5.1 in130 mm of precipitation in a typical July.
- Record high
- 107°42° (1980)
- Record low
- 54°12° (1947)
- Heating degree days
- 0
- Cooling degree days
- 547
Collinsville in August
Highs average 93°34° and lows 71°22°, with 4.4 in111 mm of precipitation in a typical August.
- Record high
- 106°41° (2000)
- Record low
- 49°9° (1891)
- Heating degree days
- 0
- Cooling degree days
- 533
Collinsville in September
Highs average 89°32° and lows 66°19°, with 3.2 in81 mm of precipitation in a typical September.
- Record high
- 105°41° (1990)
- Record low
- 34°1° (1967)
- Heating degree days
- 2
- Cooling degree days
- 370
Collinsville in OctoberThis month
Highs average 80°26° and lows 54°12°, with 3.9 in98 mm of precipitation in a typical October.
- Record high
- 102°39° (2019)
- Record low
- 24°−4° (1952)
- Heating degree days
- 83
- Cooling degree days
- 132
Collinsville in November
Highs average 69°20° and lows 43°6°, with 4.2 in107 mm of precipitation in a typical November.
- Record high
- 89°32° (2016)
- Record low
- 16°−9° (1950)
- Heating degree days
- 297
- Cooling degree days
- 21
Collinsville in December
Highs average 61°16° and lows 39°4°, with 5.3 in134 mm of precipitation and 0.1 in0.3 cm of snow in a typical December.
- Record high
- 84°29° (1998)
- Record low
- 2°−17° (1989)
- Heating degree days
- 479
- Cooling degree days
- 9