A high pressure system of arctic origin built into New Jersey on the 20th. This was one of the coldest air masses of the entire winter season. The strong northwest winds circulating around the high pressure system produced wind chill factors of between 5 and 15 degrees below zero during the morning of the 20th. Actual low temperatures included 3 degrees in Newton (Sussex County), 4 degrees in Sussex and Pelletown (Sussex County), 5 degrees in Chatham (Morris County), 6 degrees in Belvidere (Warren County) and Flemington (Hunterdon County), 7 degrees in Boonton (Morris County), 8 degrees in Trenton (Mercer County) and Somerville (Somerset County), 9 degrees in Lumberton (Burlington County) and Millville (Cumberland County), 10 degrees in Pennsauken (Camden County) and Keansburg (Monmouth County), 11 degrees at the Atlantic City International Airport and 12 degrees in Wildwood (Cape May County).

Cold/Wind Chill in WESTERN OCEAN, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in WESTERN MONMOUTH, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in NORTHWESTERN BURLINGTON, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in SALEM, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in SUSSEX, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in SOMERSET, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in EASTERN OCEAN, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in GLOUCESTER, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in WESTERN ATLANTIC, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in WESTERN CAPE MAY, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in WARREN, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in EASTERN ATLANTIC, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in EASTERN MONMOUTH, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in EASTERN CAPE MAY, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in HUNTERDON, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in CAMDEN, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in CUMBERLAND, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in SOUTHEASTERN BURLINGTON, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in MERCER, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in MIDDLESEX, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC

Cold/Wind Chill in MORRIS, NEW JERSEY
From 20-DEC-04 00:00:00 to 20-DEC-04 12:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC