In the wake of the departing Presidents Day winter storm, Arctic air surged south on gusty north winds. Dangerously low wind chills were observed during the early and mid morning hours. Gusty north winds were accompanied by actual temperatures around zero degrees, including a low of 2 below zero at Carbondale. Wind chills dropped as low as minus 10 to minus 15 degrees over much of southern Illinois. This Arctic outbreak was part of a longer duration cold snap that descended into the region on February 7 and didn't let up until the afternoon on February 20. The duration of this cold air outbreak was impressive for the lower Ohio Valley. Carbondale, IL tied an all-time record with 13 consecutive days remaining below 32 degrees (set in 1978). Aided by a fresh deep snowpack, overnight lows plummeted below zero in many locations on the mornings of February 16 and 19. Another impressive feat was the duration of dangerously cold wind chills observed February 14-16. In Carbondale, a record-shattering 86 consecutive hours with wind chills below 0 were recorded. The previous record was 22 hours on New Years Day 2018. Wind chill data goes back to 1973 in Carbondale. Carbondale observed an average temperature of 8.0 degrees over a 5-day period from February 13-17. This was the coldest 5 day period since the mid 1990's. Carbondale had four record cold high temperatures and three record low temperatures during the February 13-17 period.

Cold/Wind Chill in GALLATIN, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in HAMILTON, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in MASSAC, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in PERRY, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WABASH, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WAYNE, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in ALEXANDER, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in HARDIN, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JACKSON, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in POPE, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in PULASKI, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WHITE, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in WILLIAMSON, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in EDWARDS, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in FRANKLIN, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JEFFERSON, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in JOHNSON, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in SALINE, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Cold/Wind Chill in UNION, ILLINOIS
From 16-FEB-21 02:00:00 to 16-FEB-21 09:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS