535  
CDUS45 KTFX 212340  
CLIHLN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MST THU DEC 21 2023  
   
...............................
 
 
   
..THE HELENA MT CLIMATE SUMMARY FOR DECEMBER 21 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 50 307 PM 60 1933 31 19 -13  
MINIMUM 29 421 AM -32 1990 13 16 -21  
AVERAGE 40 22 18 -17  
 
PRECIPITATION (IN)  
TODAY 0.00 0.35 1937 0.01 -0.01 0.04  
MONTH TO DATE 0.03 0.31 -0.28 0.60  
SINCE OCT 1 1.52 1.68 -0.16 3.32  
SINCE JAN 1 12.48 11.25 1.23 11.41  
 
DEGREE DAYS  
HEATING  
TODAY 25 43 -18 82  
MONTH TO DATE 625 856 -231 1025  
SINCE DEC 1 625 856 -231 1025  
SINCE JUL 1 2186 2698 -512 2895  
 
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 8 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 1.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 800 AM  
LOWEST 49 100 PM  
AVERAGE 69  
   
......................................................
 
 
THE HELENA MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 58 1933  
MINIMUM TEMPERATURE (F) 13 -35 1990  
2022  
 
SUNRISE AND SUNSET  
DECEMBER 21 2023......SUNRISE 809 AM MST SUNSET 443 PM MST  
DECEMBER 22 2023......SUNRISE 810 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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