579  
CDUS45 KTFX 202340  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MST WED DEC 20 2023  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 20 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1866 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 49 159 PM 55 1900 31 18 -5  
MINIMUM 24 800 AM -25 1990 13 11 -13  
AVERAGE 37 22 15 -9  
 
PRECIPITATION (IN)  
TODAY 0.00 0.28 2017 0.02 -0.02 0.15  
MONTH TO DATE 0.03 0.30 -0.27 0.56  
SINCE OCT 1 1.52 1.67 -0.15 3.28  
SINCE JAN 1 12.48 11.24 1.24 11.37  
 
DEGREE DAYS  
HEATING  
TODAY 28 43 -15 74  
MONTH TO DATE 600 813 -213 943  
SINCE DEC 1 600 813 -213 943  
SINCE JUL 1 2161 2655 -494 2813  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 588 433 155 751    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 0.4  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 400 AM  
LOWEST 46 200 PM  
AVERAGE 66  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 60 1933  
MINIMUM TEMPERATURE (F) 13 -32 1990  
 
SUNRISE AND SUNSET  
DECEMBER 20 2023......SUNRISE 809 AM MST SUNSET 442 PM MST  
DECEMBER 21 2023......SUNRISE 809 AM MST SUNSET 443 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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