New October record low for the Lower 48: -45.5!

[IbrChris]

A new October record low temperature for the lower 48 states was set this morning when Peter Sinks, Utah fell to -45.5 between 2:15 and 2:30 am. The previous record was -34.5 set on October 28th (two days ago). The record prior to this year was -33 at Soda Butte, WY (Yellowstone National Park) on Oct 29, 1917.

 

The record for the entire US including Alaska is -48 at Clearwater, AK on Oct 31, 1975. Additionally -44 was recorded at Chandalar Lake, AK on Oct 26, 2008 and Clearwater, AK on Oct 30, 1975

[Anti Marine Layer]

Baby it's cold outside.

 

Hope their heat is working.

[wx_statman]

-46 in October...incredible. 

[Scott]

The record low in the sinks for November is only -47, so this was pretty close to the November record.  

[Phil]

That’s unbelievable. Brrrrrrr!

[Scott]

Apparently the low yesterday was -46.1.

[IbrChris]

A breakdown of this arctic event of 10/28-10/31/2019 in the Northwestern US comparing coldest temp of the event with coldest October temp on record prior to the event.

Oregon: -7 at Foster Flat. October record -14 at Foster Flat on 10/31/2002, official record -11 at Fort Rock and Seneca...both on 10/31/2002
Washington: 5 at several locations. October record -5 at Bumping Lake and Republic, both 10/31/1935
Idaho: -21 at Fairfield and Copper Basin. October record: -28 at Copper Basin 10/30/1991, however it beat the prior official Oct record of -16 at Big Springs on 10/30/1917.

Utah: -46 at Peter Sink. October record -32 at Peter Sink 10/31/2002
Montana: -25 at Whiskey Creek. October record -30 at Summit 10/31/1935
Wyoming: -29 at Saratoga and Old Faithful Lodge (YNP). October record -33 at Soda Butte (YNP) on 10/29/1917
Colorado: -23 at Fraser and -24 at Harbison Meadow. October record -20 at Westcliffe 10/28/1917
Arizona: -2 at Grand Canyon NP Airport. October record -9 at Fort Valley 10/21/1949

[IbrChris]

Apparently the low yesterday was -46.1.

Yeah I went by the low in the 15 minute data...not sure where the -46.1 came from as it isn't shown in the 15 min data but it is shown in the 24h data. Rounds to -46 either way though.

[IbrChris]

Pocatello, ID fell to -6 yesterday beating their all-time October record of 7 (10/31/2003) by 13 degrees! That record from 2003 was the only time they had dropped below 10 in October dating back to 1900.

[Front Ranger]

A breakdown of this arctic event of 10/28-10/31/2019 in the Northwestern US comparing coldest temp of the event with coldest October temp on record prior to the event.

 

Oregon: -7 at Foster Flat. October record -14 at Foster Flat on 10/31/2002, official record -11 at Fort Rock and Seneca...both on 10/31/2002

Washington: 5 at several locations. October record -5 at Bumping Lake and Republic, both 10/31/1935

Idaho: -21 at Fairfield and Copper Basin. October record: -28 at Copper Basin 10/30/1991, however it beat the prior official Oct record of -16 at Big Springs on 10/30/1917.

Utah: -46 at Peter Sink. October record -32 at Peter Sink 10/31/2002

Montana: -25 at Whiskey Creek. October record -30 at Summit 10/31/1935

Wyoming: -29 at Saratoga and Old Faithful Lodge (YNP). October record -33 at Soda Butte (YNP) on 10/29/1917

Colorado: -23 at Fraser and -24 at Harbison Meadow. October record -20 at Westcliffe 10/28/1917

Arizona: -2 at Grand Canyon NP Airport. October record -9 at Fort Valley 10/21/1949

 

Nice work. Wxstatman also reported new state record lows in Nevada and Nebraska, I believe.

[Scott]

One of the more impressive records was Kodachrome Basin Utah at -7. This beats the old October record by 17 degrees. It is also 8 degrees colder than the November record. November has never dropped to zero or below at the weather station.

[IbrChris]

Nice work. Wxstatman also reported new state record lows in Nevada and Nebraska, I believe.

What was the new Nevada record?

[wx_statman]

What was the new Nevada record?

 

Austin Airport at -16, at least that's what the ASOS reported. Not 100% sure it was valid. Three other official stations reported -10 last month (Sunnyside - Lund 31S, Wild Horse Reservoir, and McDermitt).

 

-10 is the listed state record at Mountain City Ranger Station in October 1970.