DENVER -- Clearing skies overnight combined with that fresh snow cover allowed temperatures to plummet well below zero Friday morning.

At 4:44 a.m. Friday morning, Denver International Airport dropped to 18 degrees below zero, setting a new record low for Feb. 2. The previous low temperature was 16 degrees below zero, last set in 1996.

The life-threatening temperatures were accompanied by unbelieveably low wind chill temperatures, in the 25 below to 50 below zero range.

In fact, this is the coldest Denver has been in the last nine years, said Chief Meteorologist Mike Nelson.

Some of the coldest temperatures and wind chill values recorded so far:

Air Force Academy -- Temperature -17 degrees, Wind Chill -37 degrees

Akron -- Temperature -12 degrees, Wind Chill -32 degrees

Alamosa -- Temperature -24 degrees, Wind Chill -38 degrees

Aurora -- Temperature -15 degrees, Wind Chill -30 degrees

Berthoud Pass -- Temperature -10 degrees, Wind Chill -57 degrees

Centennial -- Temperature -10 degrees, Wind Chill -25 degrees

Copper Mountain -- Temperature -15 degrees, Wind Chill -38 degrees

Denver -- Temperature -18 degrees, Wind Chill -40 degrees

Limon -- Temperature -16 degrees, Wind Chill -21 degrees

Monarch Pass -- Temperature -15 degrees, Wind Chill -56 degrees

Wolf Creek Pass -- Temperature -10 degrees, Wind Chill -40 degrees