PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
544 AM MDT TUE OCT 13 2009


..SUMMARY OF RECORD SETTING COLD ACROSS SOUTHERN MONTANA AND
NORTH CENTRAL WYOMING...

HERE IS AN UPDATED SUMMARY OF THE RECORDS THAT HAVE BEEN BROKEN
DURING THE RECENT EARLY SEASON ARCTIC OUTBREAK ACROSS THE REGION. WITH
RISING TEMPERATURES TODAY ADDITIONAL RECORDS ARE NOT ANTICIPATED. 

RECORD LOW TEMPERATURES SET AT BILLINGS MT

              2009 RECORD      OLD RECORD    YEAR 

OCTOBER 9TH     18 (TIED)        18          1993
OCTOBER 10TH    16               21          1987
OCTOBER 11TH    14               22          1959
OCTOBER 12TH    13               22          1969

THE RECORD LOW TEMPERATURES OF OCTOBER 10TH...11TH...AND 12TH ALL MARKED
OCCASIONS WHERE THE EARLIEST IN THE FALL SUCH A LOW TEMPERATURE HAS BEEN 
REACHED. BEFORE OCTOBER 2009...THE PREVIOUS EARLIEST DATE THAT LOW A 
TEMPERATURE OF 16...14 OR 13 DEGREES OR COLDER HAD BEEN RECORDED WAS ON 
28TH OF OCTOBER 1971 WITH A LOW OF 3 DEGREES AND 28TH OF OCTOBER 1991
WITH A READING OF 11. 

RECORD LOW MAXIMUM TEMPERATURES SET AT BILLINGS MT 

              2009 RECORD      OLD RECORD    YEAR 

OCTOBER 10TH    24               33          2008
OCTOBER 11TH    23               28          1969

THE AVERAGE DAILY TEMPERATURE IN BILLINGS THROUGH OCTOBER 12TH IS 34.9 
DEGREES WHICH EXCEEDS THE PREVIOUS COLD START THROUGH THE 12TH OF 42.5 
DEGREES IN 1985. 

THE TEMPERATURE HAS FAILED TO REACH 60 DEGREES SO FAR THIS OCTOBER IN
BILLINGS. PREVIOUSLY...NO OTHER OCTOBER HAD GONE 4 DAYS WITHOUT RECORDING
A HIGH TEMPERATURE OF 60 DEGREES OR GREATER. THIS STRETCH WILL LIKELY 
CONTINUE FOR FEW DAYS. 

THE TEMPERATURE FAILED TO REACH FREEZING ON OCTOBER 10TH THROUGH THE 12TH 
WHICH IS EARLIEST 3 DAY STRETCH IN THE SEASON BELOW FREEZING ON RECORD 
EXCEEDING BY ONE DAY OCTOBER 11TH THROUGH THE 13TH IN 1969.

RECORD LOW TEMPERATURES SET AT SHERIDAN WY

              2009 RECORD      OLD RECORD    YEAR 

OCTOBER 9TH      5               16          1993
OCTOBER 10TH    10               15          1993
OCTOBER 12TH    17               18          1986

IN ADDITION...THE READING OF 5 DEGREES ON OCTOBER 9TH MARKS THE 
EARLIEST IN THE FALL SUCH A LOW TEMPERATURE HAS BEEN REACHED. THE 
PREVIOUS EARLIEST DATE THAT A LOW TEMPERATURE OF 5 DEGREES OR COLDER
HAD BEEN RECORDED WAS ON THE 29TH OF OCTOBER 1991 WITH A LOW OF -4.

RECORD LOW MAXIMUM TEMPERATURES SET AT SHERIDAN WY 

              2009 RECORD      OLD RECORD    YEAR 

OCTOBER 10TH    23               35          2008
OCTOBER 11TH    24               30          1969

THE AVERAGE DAILY TEMPERATURE IN SHERIDAN THROUGH OCTOBER 12TH IS 31.9 
DEGREES WHICH EXCEEDS THE PREVIOUS COLD START THROUGH THE 12TH OF 40.3 
DEGREES IN 1985. 



RECORD LOW MAXIMUM TEMPERATURE SET AT MILES CITY MT 

              2009 RECORD      OLD RECORD    YEAR 

OCTOBER 10TH    31               32         1959
OCTOBER 11TH    29               33         1969
OCTOBER 12TH    33 (TIED)        33         2008

THE AVERAGE DAILY TEMPERATURE IN MILES CITY THROUGH OCTOBER 12TH IS 37.2 
DEGREES WHICH EXCEEDS THE PREVIOUS COLD START THROUGH THE 12TH OF 40.9 
DEGREES IN 1959. 

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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Billings Weather Forecast Office
2170 Overland Avenue
Billings, Montana 59102-6455

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