720  
CDUS45 KTFX 100747  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
1244 AM MST MON DEC 10 2018  
 
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR DECEMBER 9 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 306 PM 65 1990 34 13 45  
MINIMUM 12 602 AM -36 1919 13 -1 25  
AVERAGE 30 24 6 35  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.59 1949 0.02 -0.02 0.00  
MONTH TO DATE 0.03 0.19 -0.16 0.42  
SINCE OCT 1 2.15 2.03 0.12 1.80  
SINCE JAN 1 20.62 16.38 4.24 12.41  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 35 41 -6 30  
MONTH TO DATE 329 362 -33 313  
SINCE DEC 1 329 362 -33 313  
SINCE JUL 1 2589 2490 99 2287  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 197 210 -13 375    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 5.8  
 
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 500 AM  
LOWEST 25 200 PM  
AVERAGE 55  
   
......................................................
 
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 64 1990  
MINIMUM TEMPERATURE (F) 13 -22 1961  
 
 
SUNRISE AND SUNSET  
DECEMBER 10 2018......SUNRISE 753 AM MST SUNSET 428 PM MST  
DECEMBER 11 2018......SUNRISE 754 AM MST SUNSET 428 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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