398  
CDUS45 KTFX 152241  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
441 PM MDT TUE JUL 15 2025  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR JULY 15 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1896 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 56 1220 AM 98 1930 82 -26 88  
2017  
MINIMUM 51 1257 PM 36 1913 51 0 58  
AVERAGE 54 66 -12 73  
 
PRECIPITATION (IN)  
TODAY 0.71 0.80 1907 0.06 0.65 0.00  
MONTH TO DATE 0.89 0.97 -0.08 0.51  
SINCE OCT 1 10.88 13.30 -2.42 13.78  
SINCE JAN 1 9.51 10.85 -1.34 11.32  
 
DEGREE DAYS  
HEATING  
TODAY 11 2 9 0  
MONTH TO DATE 26 45 -19 48  
SINCE JUN 1 220 271 -51 291  
SINCE JUL 1 26 45 -19 48  
 
COOLING  
TODAY 0 3 -3 8  
MONTH TO DATE 52 37 15 56  
SINCE JUN 1 55 54 1 66  
SINCE JAN 1 58 55 3 66    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100  
LOWEST 83  
AVERAGE 92  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 98 1919  
MINIMUM TEMPERATURE (F) 51 34 1999  
 
SUNRISE AND SUNSET  
JULY 15 2025..........SUNRISE 538 AM MDT SUNSET 909 PM MDT  
JULY 16 2025..........SUNRISE 539 AM MDT SUNSET 908 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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