558  
CDUS45 KTFX 212340  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MST THU DEC 21 2023  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 21 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 55 249 PM 60 1900 34 21 -19  
MINIMUM 29 648 AM -35 1989 13 16 -30  
AVERAGE 42 23 19 -24  
 
PRECIPITATION (IN)  
TODAY 0.00 0.64 1966 0.02 -0.02 T  
MONTH TO DATE 0.18 0.33 -0.15 0.18  
SINCE OCT 1 2.30 2.27 0.03 2.68  
SINCE JAN 1 19.59 16.99 2.60 16.60  
 
DEGREE DAYS  
HEATING  
TODAY 23 42 -19 89  
MONTH TO DATE 594 842 -248 1128  
SINCE DEC 1 594 842 -248 1128  
SINCE JUL 1 2414 2933 -519 3126  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 229 229 0 402    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78  
LOWEST 38  
AVERAGE 58  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 58 1994  
MINIMUM TEMPERATURE (F) 13 -32 1990  
 
SUNRISE AND SUNSET  
DECEMBER 21 2023......SUNRISE 801 AM MST SUNSET 431 PM MST  
DECEMBER 22 2023......SUNRISE 801 AM MST SUNSET 432 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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