474  
CDUS45 KTFX 220902  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
301 AM MDT TUE AUG 22 2017  
 
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR AUGUST 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1896 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 MM 97 1969 80 -3 88  
MINIMUM 46 MM 29 1904 49 -3 49  
AVERAGE 62 64 -2 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.80 1918 0.06 -0.06 0.00  
MONTH TO DATE 0.23 1.19 -0.96 1.71  
SINCE OCT 1 12.37 14.96 -2.59 15.65  
SINCE JAN 1 7.97 12.46 -4.49 13.57  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 3 0 0  
MONTH TO DATE 38 42 -4 30  
SINCE JUN 1 206 342 -136 165  
SINCE JUL 1 38 115 -77 75  
 
COOLING  
YESTERDAY 0 2 -2 4  
MONTH TO DATE 20 71 -51 49  
SINCE JUN 1 289 179 110 210  
SINCE JAN 1 290 181 109 210    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 5.6  
 
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 600 AM  
LOWEST 21 200 PM  
AVERAGE 40  
   
......................................................
 
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 98 1976  
MINIMUM TEMPERATURE (F) 49 34 1992  
 
 
SUNRISE AND SUNSET  
AUGUST 22 2017........SUNRISE 625 AM MDT SUNSET 816 PM MDT  
AUGUST 23 2017........SUNRISE 626 AM MDT SUNSET 814 PM MDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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