Bitterly cold air spread across northern Illinois on January 1st & 2nd.  Wind chill values ranged from 30 below to 40 below zero during the morning of both January 1st & 2nd.  The lowest wind chill values reported included 42 below zero at Pontiac and 41 below zero at Peru, both on the morning of January 1st.  Low temperatures ranged from 5 below to 15 below zero both mornings.

Extreme Cold/Wind Chill in LEE, ILLINOIS
From 01-JAN-18 00:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LEE, ILLINOIS
From 01-JAN-18 19:00:00 to 02-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in WINNEBAGO, ILLINOIS
From 01-JAN-18 05:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in BOONE, ILLINOIS
From 01-JAN-18 05:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in MCHENRY, ILLINOIS
From 01-JAN-18 06:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Extreme Cold/Wind Chill in OGLE, ILLINOIS
From 01-JAN-18 01:00:00 to 01-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in DE KALB, ILLINOIS
From 01-JAN-18 02:00:00 to 01-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in KANE, ILLINOIS
From 01-JAN-18 02:00:00 to 01-JAN-18 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in DU PAGE, ILLINOIS
From 01-JAN-18 06:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in KENDALL, ILLINOIS
From 01-JAN-18 04:00:00 to 01-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in GRUNDY, ILLINOIS
From 01-JAN-18 04:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LA SALLE, ILLINOIS
From 01-JAN-18 00:00:00 to 01-JAN-18 12:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LIVINGSTON, ILLINOIS
From 01-JAN-18 01:00:00 to 01-JAN-18 14:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in KANKAKEE, ILLINOIS
From 01-JAN-18 03:00:00 to 01-JAN-18 13:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in FORD, ILLINOIS
From 01-JAN-18 03:00:00 to 01-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in IROQUOIS, ILLINOIS
From 01-JAN-18 03:00:00 to 01-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Extreme Cold/Wind Chill in WINNEBAGO, ILLINOIS
From 02-JAN-18 08:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in OGLE, ILLINOIS
From 02-JAN-18 00:00:00 to 02-JAN-18 11:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in DE KALB, ILLINOIS
From 02-JAN-18 07:35:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in KANE, ILLINOIS
From 01-JAN-18 23:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in DU PAGE, ILLINOIS
From 02-JAN-18 08:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in KENDALL, ILLINOIS
From 01-JAN-18 23:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in GRUNDY, ILLINOIS
From 01-JAN-18 22:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in WILL, ILLINOIS
From 02-JAN-18 07:35:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LA SALLE, ILLINOIS
From 01-JAN-18 23:00:00 to 02-JAN-18 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LIVINGSTON, ILLINOIS
From 01-JAN-18 17:00:00 to 02-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in KANKAKEE, ILLINOIS
From 01-JAN-18 19:00:00 to 02-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in FORD, ILLINOIS
From 02-JAN-18 02:00:00 to 02-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in IROQUOIS, ILLINOIS
From 02-JAN-18 02:00:00 to 02-JAN-18 10:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS