185  
CDUS45 KTFX 180833  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
133 AM MST MON DEC 18 2023  
   
...............................  
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 17 2023  
 
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)  
YESTERDAY  
MAXIMUM 44 358 AM 65 1925 34 10 25  
MINIMUM 22 1153 PM -30 1924 13 9 1  
AVERAGE 33 24 9 13  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.28 1967 0.01 -0.01 T  
MONTH TO DATE 0.18 0.26 -0.08 0.16  
SINCE OCT 1 2.30 2.20 0.10 2.66  
SINCE JAN 1 19.59 16.92 2.67 16.58  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 41 -9 52  
MONTH TO DATE 505 675 -170 818  
SINCE DEC 1 505 675 -170 818  
SINCE JUL 1 2325 2766 -441 2816  
 
COOLING  
YESTERDAY 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 18 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 1100 PM  
LOWEST 30 400 AM  
AVERAGE 52  
   
......................................................  
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 62 1979  
MINIMUM TEMPERATURE (F) 13 -37 1924  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 759 AM MST SUNSET 430 PM MST  
DECEMBER 19 2023......SUNRISE 800 AM MST SUNSET 430 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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