Arctic air combined with blustery northwest winds brought extreme wind chills to central and northeast South Dakota from the late afternoon of the 20th until the afternoon of the 21st. Wind chills of 35 below to 45 below zero were common across the area.

Extreme Cold/Wind Chill in MARSHALL, SOUTH DAKOTA
From 21-DEC-08 00:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in DAY, SOUTH DAKOTA
From 21-DEC-08 06:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in CLARK, SOUTH DAKOTA
From 21-DEC-08 01:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in ROBERTS, SOUTH DAKOTA
From 20-DEC-08 22:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS

Extreme Cold/Wind Chill in GRANT, SOUTH DAKOTA
From 21-DEC-08 01:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in CODINGTON, SOUTH DAKOTA
From 20-DEC-08 22:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS

Extreme Cold/Wind Chill in HAMLIN, SOUTH DAKOTA
From 20-DEC-08 22:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS

Extreme Cold/Wind Chill in DEUEL, SOUTH DAKOTA
From 20-DEC-08 21:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in LYMAN, SOUTH DAKOTA
From 21-DEC-08 05:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in BUFFALO, SOUTH DAKOTA
From 21-DEC-08 05:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in CORSON, SOUTH DAKOTA
From 20-DEC-08 18:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in DEWEY, SOUTH DAKOTA
From 20-DEC-08 21:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in STANLEY, SOUTH DAKOTA
From 20-DEC-08 21:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in JONES, SOUTH DAKOTA
From 20-DEC-08 21:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in CAMPBELL, SOUTH DAKOTA
From 21-DEC-08 02:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in WALWORTH, SOUTH DAKOTA
From 21-DEC-08 02:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS

Extreme Cold/Wind Chill in POTTER, SOUTH DAKOTA
From 21-DEC-08 02:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in SULLY, SOUTH DAKOTA
From 21-DEC-08 01:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in MCPHERSON, SOUTH DAKOTA
From 21-DEC-08 03:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in EDMUNDS, SOUTH DAKOTA
From 20-DEC-08 21:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in FAULK, SOUTH DAKOTA
From 21-DEC-08 04:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in HYDE, SOUTH DAKOTA
From 21-DEC-08 01:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in HAND, SOUTH DAKOTA
From 21-DEC-08 05:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in BROWN, SOUTH DAKOTA
From 21-DEC-08 06:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS

Extreme Cold/Wind Chill in SPINK, SOUTH DAKOTA
From 21-DEC-08 06:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: Mesonet

Extreme Cold/Wind Chill in HUGHES, SOUTH DAKOTA
From 21-DEC-08 01:00:00 to 21-DEC-08 16:00:00 (CST-6)
Reported by: ASOS