184  
CDUS45 KTFX 160838  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
138 AM MST SAT DEC 16 2023  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 15 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 45 219 PM 62 1980 35 10 19  
MINIMUM 19 550 AM -29 1964 13 6 12  
AVERAGE 32 24 8 16  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.80 1901 0.02 -0.02 T  
MONTH TO DATE 0.18 0.23 -0.05 0.16  
SINCE OCT 1 2.30 2.17 0.13 2.66  
SINCE JAN 1 19.59 16.89 2.70 16.58  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 33 41 -8 49  
MONTH TO DATE 446 593 -147 716  
SINCE DEC 1 446 593 -147 716  
SINCE JUL 1 2266 2684 -418 2714  
 
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 13 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 200 AM  
LOWEST 41 200 PM  
AVERAGE 63  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 61 1980  
MINIMUM TEMPERATURE (F) 13 -31 1964  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 758 AM MST SUNSET 429 PM MST  
DECEMBER 17 2023......SUNRISE 758 AM MST SUNSET 429 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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