Arcola weather by month
What a typical year looks like in Arcola, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Tuscola, 12 km from Arcola; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 40.6 in1030 mm
- Snow a year
- 17 in43 cm
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 16
- Heating degree days
- 5,634
- Cooling degree days
- 1,076
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Arcola in January
Highs average 34°1° and lows 18°−8°, with 2.4 in62 mm of precipitation and 5 in13 cm of snow in a typical January.
- Record high
- 73°23° (1909)
- Record low
- −25°−32° (1912)
- Heating degree days
- 1209
- Cooling degree days
- 0
Arcola in February
Highs average 39°4° and lows 21°−6°, with 2.1 in53 mm of precipitation and 5 in12 cm of snow in a typical February.
- Record high
- 74°23° (2024)
- Record low
- −23°−31° (1905)
- Heating degree days
- 981
- Cooling degree days
- 0
Arcola in March
Highs average 50°10° and lows 31°−1°, with 2.9 in73 mm of precipitation and 2.2 in5.6 cm of snow in a typical March.
- Record high
- 87°31° (1907)
- Record low
- −10°−23° (1960)
- Heating degree days
- 762
- Cooling degree days
- 2
Arcola in April
Highs average 64°18° and lows 42°5°, with 4.5 in115 mm of precipitation and 0.2 in0.5 cm of snow in a typical April.
- Record high
- 92°33° (1899)
- Record low
- 15°−9° (1990)
- Heating degree days
- 385
- Cooling degree days
- 10
Arcola in May
Highs average 74°23° and lows 53°12°, with 4.2 in108 mm of precipitation in a typical May.
- Record high
- 98°37° (1911)
- Record low
- 26°−3° (1903)
- Heating degree days
- 134
- Cooling degree days
- 91
Arcola in June
Highs average 82°28° and lows 63°17°, with 4.8 in123 mm of precipitation in a typical June.
- Record high
- 105°41° (1954)
- Record low
- 34°1° (1894)
- Heating degree days
- 14
- Cooling degree days
- 241
Arcola in July
Highs average 85°29° and lows 65°19°, with 4.4 in111 mm of precipitation in a typical July.
- Record high
- 113°45° (1954)
- Record low
- 44°7° (1898)
- Heating degree days
- 1
- Cooling degree days
- 316
Arcola in August
Highs average 84°29° and lows 63°17°, with 3 in75 mm of precipitation in a typical August.
- Record high
- 104°40° (1901)
- Record low
- 41°5° (1897)
- Heating degree days
- 5
- Cooling degree days
- 268
Arcola in September
Highs average 79°26° and lows 55°13°, with 3.1 in78 mm of precipitation in a typical September.
- Record high
- 103°39° (1899)
- Record low
- 21°−6° (1899)
- Heating degree days
- 68
- Cooling degree days
- 126
Arcola in OctoberThis month
Highs average 66°19° and lows 43°6°, with 3.3 in83 mm of precipitation in a typical October.
- Record high
- 93°34° (1897)
- Record low
- 18°−8° (1910)
- Heating degree days
- 337
- Cooling degree days
- 21
Arcola in November
Highs average 51°11° and lows 32°0°, with 3.4 in86 mm of precipitation and 0.9 in2.3 cm of snow in a typical November.
- Record high
- 82°28° (1950)
- Record low
- −7°−22° (1950)
- Heating degree days
- 697
- Cooling degree days
- 1
Arcola in December
Highs average 39°4° and lows 24°−5°, with 2.5 in64 mm of precipitation and 4 in9 cm of snow in a typical December.
- Record high
- 71°22° (2012)
- Record low
- −26°−32° (1989)
- Heating degree days
- 1041
- Cooling degree days
- 0