Coyne Center weather by month
What a typical year looks like in Coyne Center, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Moline Quad City International Airport, 6 km from Coyne Center; records cover 1874–2026.
The year at a glance
- Precipitation a year
- 38.3 in972 mm
- Snow a year
- 36 in92 cm
- Last spring freeze
- Apr 23
- First fall freeze
- Oct 15
- Heating degree days
- 6,024
- Cooling degree days
- 1,042
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −7°−22° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Coyne Center in January
Highs average 32°0° and lows 15°−10°, with 1.7 in42 mm of precipitation and 11 in27 cm of snow in a typical January.
- Record high
- 69°21° (1989)
- Record low
- −33°−36° (2019)
- Heating degree days
- 1292
- Cooling degree days
- 0
Coyne Center in February
Highs average 37°3° and lows 19°−7°, with 1.8 in46 mm of precipitation and 9 in22 cm of snow in a typical February.
- Record high
- 79°26° (2024)
- Record low
- −28°−33° (1996)
- Heating degree days
- 1044
- Cooling degree days
- 0
Coyne Center in March
Highs average 50°10° and lows 30°−1°, with 2.6 in67 mm of precipitation and 4 in11 cm of snow in a typical March.
- Record high
- 88°31° (1986)
- Record low
- −19°−28° (1960)
- Heating degree days
- 785
- Cooling degree days
- 2
Coyne Center in April
Highs average 63°17° and lows 40°4°, with 3.8 in97 mm of precipitation and 1.1 in2.8 cm of snow in a typical April.
- Record high
- 93°34° (1986)
- Record low
- 7°−14° (1982)
- Heating degree days
- 417
- Cooling degree days
- 11
Coyne Center in May
Highs average 74°23° and lows 51°11°, with 4.7 in119 mm of precipitation in a typical May.
- Record high
- 104°40° (1934)
- Record low
- 25°−4° (2005)
- Heating degree days
- 153
- Cooling degree days
- 76
Coyne Center in June
Highs average 83°28° and lows 61°16°, with 5 in127 mm of precipitation in a typical June.
- Record high
- 104°40° (1931)
- Record low
- 39°4° (1889)
- Heating degree days
- 16
- Cooling degree days
- 228
Coyne Center in July
Highs average 86°30° and lows 65°18°, with 4.2 in107 mm of precipitation in a typical July.
- Record high
- 111°44° (1936)
- Record low
- 46°8° (1945)
- Heating degree days
- 2
- Cooling degree days
- 327
Coyne Center in August
Highs average 84°29° and lows 63°17°, with 4 in101 mm of precipitation in a typical August.
- Record high
- 106°41° (1936)
- Record low
- 40°4° (1915)
- Heating degree days
- 4
- Cooling degree days
- 264
Coyne Center in September
Highs average 78°26° and lows 54°12°, with 3.3 in84 mm of precipitation in a typical September.
- Record high
- 100°38° (1922)
- Record low
- 24°−4° (1942)
- Heating degree days
- 84
- Cooling degree days
- 116
Coyne Center in OctoberThis month
Highs average 65°18° and lows 43°6°, with 2.8 in71 mm of precipitation and 0.3 in0.8 cm of snow in a typical October.
- Record high
- 95°35° (2006)
- Record low
- 11°−12° (1925)
- Heating degree days
- 368
- Cooling degree days
- 17
Coyne Center in November
Highs average 50°10° and lows 31°−1°, with 2.3 in58 mm of precipitation and 2.1 in5.3 cm of snow in a typical November.
- Record high
- 80°27° (1933)
- Record low
- −10°−23° (1891)
- Heating degree days
- 740
- Cooling degree days
- 1
Coyne Center in December
Highs average 37°3° and lows 21°−6°, with 2 in52 mm of precipitation and 9 in22 cm of snow in a typical December.
- Record high
- 75°24° (2021)
- Record low
- −24°−31° (1989)
- Heating degree days
- 1119
- Cooling degree days
- 0