An extremely cold arctic airmass settled over northern Illinois with minimum observed wind chills falling into the -40��F to -50��F range area-wide.  Some of the coldest wind chill reports include Steward at -50��F; Aurora at -47��F; Rochelle at -47��F; DuPage at -46��F; Romeoville at -46��F; Rockford at -46��F; and O'Hare airport at -42��F.  Four deaths were reported in Cook County, with hypothermia due to cold exposure being a contributing factor in each.

Extreme Cold/Wind Chill in KENDALL, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in GRUNDY, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 02:45:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in WILL, ILLINOIS
From 06-JAN-14 02:00:00 to 07-JAN-14 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LA SALLE, ILLINOIS
From 06-JAN-14 00:00:00 to 06-JAN-14 19:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in LIVINGSTON, ILLINOIS
From 06-JAN-14 00:00:00 to 07-JAN-14 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in KANKAKEE, ILLINOIS
From 06-JAN-14 02:00:00 to 07-JAN-14 08:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in IROQUOIS, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 00:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in FORD, ILLINOIS
From 06-JAN-14 01:00:00 to 06-JAN-14 11:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in COOK, ILLINOIS
From 06-JAN-14 02:00:00 to 07-JAN-14 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in WINNEBAGO, ILLINOIS
From 06-JAN-14 00:00:00 to 07-JAN-14 03:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in BOONE, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in LEE, ILLINOIS
From 06-JAN-14 00:00:00 to 07-JAN-14 08:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in OGLE, ILLINOIS
From 06-JAN-14 00:00:00 to 07-JAN-14 08:15:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in DE KALB, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Extreme Cold/Wind Chill in MCHENRY, ILLINOIS
From 06-JAN-14 01:00:00 to 07-JAN-14 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in LAKE, ILLINOIS
From 06-JAN-14 02:00:00 to 07-JAN-14 02:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in KANE, ILLINOIS
From 06-JAN-14 00:00:00 to 07-JAN-14 06:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme Cold/Wind Chill in DU PAGE, ILLINOIS
From 06-JAN-14 02:00:00 to 07-JAN-14 08:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS