A low pressure system moved into southeastern Canada on January 30th, with  a cold front crossing through the Mid-Atlantic states. Cold temperatures and strong northwest winds followed behind the front on the night of the 30th and into the morning of the 31st. This was able to produce very low wind chills across much of the state.

Cold/Wind Chill in WASHINGTON, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: ASOS

The combination of cold temperatures and strong winds produced wind chills as low as -15 degrees.

Cold/Wind Chill in FREDERICK, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -15 degrees.

Cold/Wind Chill in CARROLL, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: AWOS

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in NORTHERN BALTIMORE, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in NORTHWEST MONTGOMERY, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: AWOS

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in NORTHWEST HOWARD, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in NORTHWEST HARFORD, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in SOUTHEAST HARFORD, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -5 degrees.

Cold/Wind Chill in CENTRAL AND EASTERN ALLEGANY, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -15 degrees.

Cold/Wind Chill in SOUTHERN BALTIMORE, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: AWOS

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in CENTRAL AND SOUTHEAST HOWARD, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in CENTRAL AND SOUTHEAST MONTGOMERY, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Extreme Cold/Wind Chill in EXTREME WESTERN ALLEGANY, MARYLAND
From 30-JAN-19 18:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: Mesonet

The combination of cold temperatures and strong winds produced wind chills as low as -25 degrees.

Cold/Wind Chill in PRINCE GEORGES, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: AWOS

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.

Cold/Wind Chill in ANNE ARUNDEL, MARYLAND
From 30-JAN-19 20:00:00 to 31-JAN-19 10:00:00 (EST-5)
Reported by: ASOS

The combination of cold temperatures and strong winds produced wind chills as low as -10 degrees.