February 5th & 6th Record Cold

Below are a couple tables showing the highs and lows for selected airports (unless otherwise noted) for February 5th and 6th.  Several locations observed record lows and record coldest high temperatures.  New records are highlighted.

February 5th Extreme Cold Temperatures
Location High Record Coldest High Low Record Low Period of Record
Big Piney  -1  7 in 1993  -21  -18 in 1993  Since 1976
Buffalo*  -7  26 in 2008  -20  +8 in 2008  Since 1998
Casper  -5  -4 in 1989  -21  -23 in 1982  Since 1939
Greybull*  -2  25 in 2003  -19  -6 in 2008  Since 1998
Lake Yellowstone*  0  12 in 2008  -28  -15 in 2012  Since 1998
Lander  -3  +1 in 1989  -15  -31 in 1899  Since 1891
Riverton (town)#  -2  +7 in 1982
(record for the 6th)
 -23  -29 in 1989  Since 1907
Rock Springs  +3  -3 in 1989  -10  -22 in 1982  Since 1948
Worland  -4  -2 in 1989  -26  -33 in 1982  Since 1960

* Buffalo, Greybull and Lake Yellowstone records in the table only go back to 1998.  However the 7 below zero high at the Buffalo Airport would break the coldest daily high temperature of +5 degrees set in 1936 at a cooperative observer in Buffalo.  The high of zero at Lake Yellowstone would also set a new record coldest high at the cooperative observer at Lake Yellowstone breaking the old record of +2 degrees in 1985.

# Riverton (town) observations are taken from 7 AM to 7 AM. The high and low for a given 24 hours is official recorded on the date at the end of the 24 hours.  Most of the time the high temperature recorded at a cooperative observer site (7AM to 7AM) on a given date actually occurred the day before.  For example, the highest temperature Wednesday afternoon, February 5th in the town of Riverton was -2, but this temperature is officially recorded on the 6th at the end of the 24 hours.  Airports are much easier since they are calendar day highs and lows.

February 6th Extreme Cold Temperatures
Location High Record Coldest High Low Record Low Period of Record
Big Piney 2 -3 in 1989 -14 -43 in 1989  Since 1976
Buffalo* -5
12 in 2003 -22 0 in 2003  Since 1998
Casper -1 +7 in 1989 -26 -20 in 1989  Since 1939
Greybull* -4 20 in 2003 -29 -8 in 2002  Since 1998
Lake Yellowstone* 0 13 in 2003 -36 -20 in 2003  Since 1998
Lander 0 -4 in 1899 -17 -33 in 1899  Since 1891
Riverton (town)# -3 -3 in 1976
(record for the 7th)
-24  -32 in 1976  Since 1907
Rock Springs 8 -4 in 1989 -14 -25 in 1989  Since 1948
Worland -6 +7 in 1989 -34 -30 in 1976  Since 1960

* Buffalo, Greybull and Lake Yellowstone records in the table only go back to 1998. The cooperative observer record for Lake Yellowstone is 50 below zero set in 1914.

# Riverton (town) observations are taken from 7 AM to 7 AM. The high and low for a given 24 hours is official recorded on the date at the end of the 24 hours.  Most of the time the high temperature recorded at a cooperative observer site (7AM to 7AM) on a given date actually occurred the day before.  For example, the highest temperature Wednesday afternoon, February 5th in the town of Riverton was -2, but this temperature is officially recorded on the 6th at the end of the 24 hours.  Airports are much easier since they are calendar day highs and lows.



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