Share

Decembrrrr! Arctic Blast Sent Subzero Chill to Rockies, Plains; Hard Freeze for California

By: Nick Wiltgen and Chris Dolce
Published: December 9, 2013

A bitterly cold air mass spread across the western states and into the Plains and Midwest during the first week of December. One of the coldest temperatures recorded happened the morning of Saturday, Dec. 7, when the temperature in Jordan, Mont. dropped as low as -42!

In some cities, the frigid air mass has been the coldest seen in years or has broken daily record lows. Here's a few examples:

  • Billings, Mont.: Low of -21 degrees Saturday at the airport was the coldest reading at that location since Jan. 13, 1997, nearly 17 years ago.
  • Miles City, Mont.: Not to be outdone, this southeast Montana city dropped to -36 degrees Saturday, its coldest since a -37 was recorded Jan. 30, 1996.
  • Great Falls, Mont.: Low of -33 degrees on Saturday was the coldest temperature recorded so early in the season. Previous record was Dec. 8, 1972 (-36 degrees).
  • Medford, Ore: Record low of 18 degrees on Wednesday and a record low of 14 on Thursday. According to the National Weather Service, this is the coldest air mass in the city since 1998.
  • Pullman, Wash.: Sunday morning's preliminary low of -11 degrees was the city's sixth consecutive daily record low and the earliest it's gotten that cold in 74 years of recordkeeping.
  • Denver: Record low of -13 degrees on Wednesday beat the old record of -5 degrees set in 2008. Thursday's low of -15 tied the daily record. Denver dropped to -13 degrees on Saturday morning, tying another record low.
  • Ely, Nev.: Record low of -17 degrees on Wednesday crushed the old record of -5 degrees. Record lows were also set on Thursday (-23 degrees) and Friday morning (-19 degrees).
  • Casper, Wyo.: Record low of -22 degrees on Wednesday beat the old record of -11 degrees set in 1972.
  • Portland, Ore. and Astoria, Ore.: Three straight days with daily record lows Tuesday through Thursday.
  • Spokane, Wash.: Saw its first high in the teens since Feb. 26, 2011 on Thursday.
  • Glasgow, Mont.: Recorded its first subzero high temperature since Jan. 18, 2012 on Thursday.
  • Daily records lows set on Saturday morning in Grand Forks, N.D. (-24 degrees) and Kansas City, Mo. (1 degree - tie).
  • Sunday morning brought a record low of 7 degrees to Bishop, Calif. (old record 8 degrees)
  • The coldest spot in the United States Sunday morning, was Havre, Mont., where the low temperature reached -37 degrees!

MORE: Arctic Photos from Destination Uncharted


Featured Blogs

More Water For California: New Enormous Water Works Programs Are Expensive

By Dr. Jeff Masters
April 18, 2014

From November 2013 - January 2014, a remarkably extreme jet stream pattern set up over North America, bringing the infamous "Polar Vortex" of cold air to the Midwest and Eastern U.S., and a "Ridiculously Resilient Ridge" of high pressure over California, which brought the worst winter drought conditions ever recorded to that state. A new study by Utah State scientist S.-Y. Simon Wang found that this jet stream pattern was the most extreme on record, and likely could not have grown so extreme without the influence of human-caused global warming.

A Warm Winter in Alaska

By Christopher C. Burt
April 18, 2014

In contrast to much of the contiguous U.S., the National Weather Service (NWS) in Alaska noted in a post this week that Alaska has enjoyed its third warmest ‘winter’ on record for 2013-2014. The period of time they are calling ‘winter’ is for the six months of October 2013 through 2014. Here are a few details.

I am a Failed Father

By Shaun Tanner
April 17, 2014

Being a father is very hard! I know, I sound like a whiner, but I felt especially bad this week when I caused my daughter to miss the lunar eclipse.

Polar Vortex, Global Warming, and Cold Weather

By Stu Ostro
January 10, 2014

Some thoughts about the recent viral meme(s).

What the 5th IPCC Assessment Doesn't Include

By Angela Fritz
September 27, 2013

Melting permafrost has the potential to release an additional 1.5 trillion tons of carbon into the atmosphere, and could increase our global average temperature by 1.5°F in addition to our day-to-day human emissions. However, this effect is not included in the IPCC report issued Friday morning, which means the estimates of how Earth's climate will change are likely on the conservative side.

Astronomical VS. Meteorological Winter

By Tom Niziol
March 1, 2013