Ridott weather by month
What a typical year looks like in Ridott, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Freeport Wastewater Plant, 10 km from Ridott; records cover 1973–2026.
The year at a glance
- Precipitation a year
- 38.4 in974 mm
- Snow a year
- 35 in88 cm
- Last spring freeze
- Apr 25
- First fall freeze
- Oct 10
- Heating degree days
- 6,954
- Cooling degree days
- 690
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −10°−23° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Ridott in January
Highs average 28°−2° and lows 11°−11°, with 1.6 in40 mm of precipitation and 10 in25 cm of snow in a typical January.
- Record high
- 61°16° (2002)
- Record low
- −31°−35° (2019)
- Heating degree days
- 1407
- Cooling degree days
- 0
Ridott in February
Highs average 33°0° and lows 15°−10°, with 1.7 in42 mm of precipitation and 9 in22 cm of snow in a typical February.
- Record high
- 76°24° (2024)
- Record low
- −31°−35° (2019)
- Heating degree days
- 1156
- Cooling degree days
- 0
Ridott in March
Highs average 45°7° and lows 26°−3°, with 2.2 in55 mm of precipitation and 4 in10 cm of snow in a typical March.
- Record high
- 85°29° (1986)
- Record low
- −19°−28° (2015)
- Heating degree days
- 920
- Cooling degree days
- 0
Ridott in April
Highs average 58°15° and lows 36°2°, with 3.7 in93 mm of precipitation and 0.8 in2 cm of snow in a typical April.
- Record high
- 92°33° (1980)
- Record low
- 9°−13° (1982)
- Heating degree days
- 534
- Cooling degree days
- 3
Ridott in May
Highs average 70°21° and lows 48°9°, with 4.4 in111 mm of precipitation in a typical May.
- Record high
- 96°36° (2018)
- Record low
- 25°−4° (2005)
- Heating degree days
- 226
- Cooling degree days
- 44
Ridott in June
Highs average 79°26° and lows 59°15°, with 5.3 in134 mm of precipitation in a typical June.
- Record high
- 100°38° (1988)
- Record low
- 38°3° (1993)
- Heating degree days
- 37
- Cooling degree days
- 156
Ridott in July
Highs average 82°28° and lows 62°17°, with 4.2 in107 mm of precipitation in a typical July.
- Record high
- 103°39° (2012)
- Record low
- 46°8° (1979)
- Heating degree days
- 6
- Cooling degree days
- 234
Ridott in August
Highs average 81°27° and lows 60°16°, with 4.2 in107 mm of precipitation in a typical August.
- Record high
- 101°38° (1988)
- Record low
- 40°4° (1986)
- Heating degree days
- 15
- Cooling degree days
- 180
Ridott in September
Highs average 74°24° and lows 51°11°, with 4.1 in104 mm of precipitation in a typical September.
- Record high
- 96°36° (1978)
- Record low
- 28°−2° (1974)
- Heating degree days
- 136
- Cooling degree days
- 66
Ridott in OctoberThis month
Highs average 62°16° and lows 39°4°, with 3 in76 mm of precipitation and 0.2 in0.5 cm of snow in a typical October.
- Record high
- 90°32° (1997)
- Record low
- 15°−9° (1988)
- Heating degree days
- 459
- Cooling degree days
- 7
Ridott in November
Highs average 46°8° and lows 28°−2°, with 2.4 in60 mm of precipitation and 2.6 in6.6 cm of snow in a typical November.
- Record high
- 77°25° (2000)
- Record low
- −5°−21° (1976)
- Heating degree days
- 837
- Cooling degree days
- 0
Ridott in December
Highs average 33°1° and lows 18°−8°, with 1.8 in46 mm of precipitation and 9 in23 cm of snow in a typical December.
- Record high
- 69°21° (2021)
- Record low
- −23°−31° (2000)
- Heating degree days
- 1221
- Cooling degree days
- 0