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Channel Lake weather by month

What a typical year looks like in Channel Lake, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at BURLINGTON WWTP, 21 km from Channel Lake; records cover 1951–2026.

Today’s Channel Lake forecast

The year at a glance

January: typical high 27.7°F, low 11.5°F, precipitation 1.82 in. February: typical high 31.4°F, low 14°F, precipitation 1.76 in. March: typical high 42.7°F, low 23.4°F, precipitation 2.08 in. April: typical high 55.7°F, low 33.7°F, precipitation 3.59 in. May: typical high 67.1°F, low 44.4°F, precipitation 3.96 in. June: typical high 76.9°F, low 54.7°F, precipitation 4.51 in. July: typical high 81°F, low 59.3°F, precipitation 3.59 in. August: typical high 79.5°F, low 57.7°F, precipitation 3.55 in. September: typical high 72.9°F, low 49.5°F, precipitation 3.46 in. October: typical high 60°F, low 38.6°F, precipitation 2.75 in. November: typical high 45.2°F, low 27.6°F, precipitation 2.38 in. December: typical high 32.9°F, low 17.9°F, precipitation 1.88 in.−40°−40°−20°−29°0°−18°20°−7°40°4°60°16°80°27°100°38°28°−2°12°−11°Jan31°0°14°−10°Feb43°6°23°−5°Mar56°13°34°1°Apr67°19°44°7°May77°25°55°13°Jun81°27°59°15°Jul80°26°58°14°Aug73°23°50°10°Sep60°16°39°4°Oct45°7°28°−2°Nov33°0°18°−8°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
35.3 in897 mm
Snow a year
38 in96 cm
Last spring freeze
May 4
First fall freeze
Oct 10
Heating degree days
7,370
Cooling degree days
499

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 92°33° (cooling, 1%).

Month by month

Channel Lake in January

Highs average 28°−2° and lows 12°−11°, with 1.8 in46 mm of precipitation and 12 in31 cm of snow in a typical January.

Record high
60°16° (1967)
Record low
−27°−33° (1985)
Heating degree days
1407
Cooling degree days
0

Channel Lake in February

Highs average 31°0° and lows 14°−10°, with 1.8 in45 mm of precipitation and 10 in25 cm of snow in a typical February.

Record high
73°23° (2024)
Record low
−27°−33° (1996)
Heating degree days
1184
Cooling degree days
0

Channel Lake in March

Highs average 43°6° and lows 23°−5°, with 2.1 in53 mm of precipitation and 5 in12 cm of snow in a typical March.

Record high
82°28° (1986)
Record low
−15°−26° (2015)
Heating degree days
991
Cooling degree days
0

Channel Lake in April

Highs average 56°13° and lows 34°1°, with 3.6 in91 mm of precipitation and 1.1 in2.8 cm of snow in a typical April.

Record high
90°32° (1980)
Record low
3°−16° (1982)
Heating degree days
611
Cooling degree days
2

Channel Lake in May

Highs average 67°19° and lows 44°7°, with 4 in101 mm of precipitation in a typical May.

Record high
94°34° (1991)
Record low
22°−6° (1966)
Heating degree days
313
Cooling degree days
26

Channel Lake in June

Highs average 77°25° and lows 55°13°, with 4.5 in115 mm of precipitation in a typical June.

Record high
102°39° (1988)
Record low
32°0° (1964)
Heating degree days
78
Cooling degree days
102

Channel Lake in July

Highs average 81°27° and lows 59°15°, with 3.6 in91 mm of precipitation in a typical July.

Record high
105°41° (1995)
Record low
39°4° (1972)
Heating degree days
18
Cooling degree days
177

Channel Lake in August

Highs average 80°26° and lows 58°14°, with 3.6 in90 mm of precipitation in a typical August.

Record high
102°39° (1988)
Record low
35°2° (1999)
Heating degree days
27
Cooling degree days
138

Channel Lake in September

Highs average 73°23° and lows 50°10°, with 3.5 in88 mm of precipitation in a typical September.

Record high
101°38° (1953)
Record low
23°−5° (1974)
Heating degree days
163
Cooling degree days
49

Channel Lake in OctoberThis month

Highs average 60°16° and lows 39°4°, with 2.8 in70 mm of precipitation in a typical October.

Record high
90°32° (1971)
Record low
15°−9° (1952)
Heating degree days
492
Cooling degree days
5

Channel Lake in November

Highs average 45°7° and lows 28°−2°, with 2.4 in60 mm of precipitation and 2.2 in5.6 cm of snow in a typical November.

Record high
76°24° (1974)
Record low
−9°−23° (1976)
Heating degree days
858
Cooling degree days
0

Channel Lake in December

Highs average 33°0° and lows 18°−8°, with 1.9 in48 mm of precipitation and 8 in20 cm of snow in a typical December.

Record high
67°19° (2001)
Record low
−18°−28° (1989)
Heating degree days
1228
Cooling degree days
0