The week-long arctic cold spell from the end of December 2021 spilled over into the first day of 2022, with continued well below zero temperatures and pockets of light winds, which created dangerously cold wind chill values for many northeast Montana locations.

Cold/Wind Chill in WIBAUX, MONTANA
From 01-JAN-22 02:55:00 to 01-JAN-22 02:55:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

At the Beach, ND ASOS site (K20U) near Wibaux County, temperatures in the teens below zero and breezy winds caused a wind chill of -40 to be recorded at 2:55 AM on January 1st.

Cold/Wind Chill in RICHLAND, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 08:16:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

For multiple sites across Richland County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse during the early morning of January 1st. The peak wind chill of -46 was recorded at 7:56 AM at the Sidney-Richland Airport ASOS Site (KSDY).

Cold/Wind Chill in DAWSON, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 02:11:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

At the Lindsay Divide DOT site (MTLND), temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse in the early morning on January 1st. The peak wind chill of -42 was recorded at 2:08 AM.

Cold/Wind Chill in DANIELS, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 08:33:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple sites in Daniels County, temperatures in the teens to 30s below zero and breezy winds created intermittent periods of wind chills of -40 or worse between early and mid morning on January 1st. The peak wind chill of -49 was recorded at 5:55 AM at the Scobey airport mesonet site (K9S2).

Cold/Wind Chill in MCCONE, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 01:42:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

At the Cow Creek MT-13 DOT Site (MTCOW) in McCone County, temperatures in the 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse during the early morning of January 1st. The peak wind chill of -46 was recorded at 12:07 AM.

Cold/Wind Chill in SHERIDAN, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 18:45:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

For multiple sites across Sheridan County, temperatures in the teens to 30s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the early morning into the evening of January 1st.  The peak wind chill of -53 was at 8:55 AM on the 1st at the Sher-wood Airport (Plentywood) ASOS.

Cold/Wind Chill in CENTRAL AND SE PHILLIPS, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 11:20:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

At the Saco US-2 DOT site (MTSCO), temperatures in the teens to 30s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from the early morning to the late morning on January 1st.  The peak wind chill of -49 was recorded from 6:03 AM to 6:05 AM, and again at 6:33 AM.

Cold/Wind Chill in CENTRAL AND SOUTHERN VALLEY, MONTANA
From 01-JAN-22 06:30:00 to 01-JAN-22 07:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

At the BLM Vandalia N mesonet site (MTM34), temperatures in the 20s below zero and breezy winds created a period of -40 wind chills between 6:30 AM and 7:00 AM on January 1st.

Cold/Wind Chill in NORTHERN VALLEY, MONTANA
From 01-JAN-22 06:44:00 to 01-JAN-22 07:44:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

At the Bluff Creek RAWS site (BLUM8), temperatures in the 30s below zero and breezy winds created a brief period of wind chills of -40 or worse on the morning of January 1st. The peak wind chill of -40 was recorded between 6:44 AM and 7:44 AM.

Cold/Wind Chill in WESTERN ROOSEVELT, MONTANA
From 01-JAN-22 00:00:00 to 01-JAN-22 16:41:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

For multiple site across western Roosevelt County, temperatures in the teens and 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse from early morning to late afternoon on January 1st. The peak wind chill of -51 was recorded at 3:31 AM at the McDonald's MT-13 DOT site (MTMCD).

Cold/Wind Chill in EASTERN ROOSEVELT, MONTANA
From 01-JAN-22 01:33:00 to 01-JAN-22 05:25:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

At the US-2 Stateline DOT site (MTSTA), temperatures in the 20s below zero and breezy winds created intermittent periods of wind chills of -40 or worse during the early morning of January 1st. The peak wind chill of -42 was recorded from 2:54 AM to 3:05 AM.