An Arctic airmass settled in across the Northern Plains from the evening of December 28th through the 31st and into the new year (see the January 2022 Storm Data entry for additional details). Wind chill warning criteria was met from the 28th into the 29th under dominant high pressure, and again during the morning and evening of the 31st when extreme cold air was reinforced by a passing cold front, across at least portions of north central and northeastern South Dakota. Only slight improvements in conditions were noted during the daytime and between these waves. Some of the coldest wind chill readings during this period include -47 degrees F 4 miles SW of Hillhead, -44 F 4 miles NNW of Victor, -43 F 3 miles south of Webster, and -42 F 7 miles south of Claremont, 2 miles north of Herreid, 6 miles west of Henry, and 3 miles WNW of Wallace.

Extreme Cold/Wind Chill in HAMLIN, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in ROBERTS, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in GRANT, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in DEUEL, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CORSON, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in DEWEY, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CAMPBELL, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in WALWORTH, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in POTTER, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in MCPHERSON, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in EDMUNDS, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in FAULK, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Extreme Cold/Wind Chill in BROWN, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in SPINK, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in MARSHALL, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in DAY, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CLARK, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme Cold/Wind Chill in CODINGTON, SOUTH DAKOTA
From 28-DEC-21 18:00:00 to 31-DEC-21 23:59:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet