651  
CDUS45 KTFX 190850  
CLIGTF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
150 AM MST TUE DEC 19 2023  
   
...............................
 
 
   
..THE GREAT FALLS MT CLIMATE SUMMARY FOR DECEMBER 18 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1886 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 56 104 PM 58 1917 35 21 0  
1979  
MINIMUM 36 1216 AM -27 1924 16 20 -13  
AVERAGE 46 25 21 -6  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.30 1990 0.02 -0.02 T  
MONTH TO DATE 0.07 0.30 -0.23 0.72  
SINCE OCT 1 2.09 2.05 0.04 3.59  
SINCE JAN 1 17.09 14.53 2.56 14.84  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.0 1990 0.3 -0.3 0.2  
MONTH TO DATE 1.1 5.2 -4.1 15.3  
SINCE DEC 1 1.1 5.2 -4.1 15.3  
SINCE JUL 1 12.3 20.7 -8.4 37.4  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 40 -21 71  
MONTH TO DATE 496 687 -191 859  
SINCE DEC 1 496 687 -191 859  
SINCE JUL 1 2102 2627 -525 2743  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 337 310 27 535    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 45 1200 AM  
LOWEST 23 100 PM  
AVERAGE 34  
   
......................................................
 
 
THE GREAT FALLS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 59 2004  
MINIMUM TEMPERATURE (F) 15 -25 1990  
 
SUNRISE AND SUNSET  
DECEMBER 19 2023......SUNRISE 809 AM MST SUNSET 436 PM MST  
DECEMBER 20 2023......SUNRISE 810 AM MST SUNSET 436 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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