607  
CDUS45 KTFX 202240  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
440 PM MDT SUN JUL 20 2025  
   
...............................
 
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR JULY 20 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 76 1016 AM 96 1934 83 -7 87  
2003  
MINIMUM 53 209 AM 36 1900 52 1 54  
AVERAGE 65 68 -3 71  
 
PRECIPITATION (IN)  
TODAY 0.14 1.14 1961 0.06 0.08 T  
MONTH TO DATE 1.20 1.24 -0.04 0.51  
SINCE OCT 1 11.19 13.57 -2.38 13.78  
SINCE JAN 1 9.82 11.12 -1.30 11.32  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 41 54 -13 48  
SINCE JUN 1 235 280 -45 291  
SINCE JUL 1 41 54 -13 48  
 
COOLING  
TODAY 0 4 -4 6  
MONTH TO DATE 58 57 1 89  
SINCE JUN 1 61 74 -13 99  
SINCE JAN 1 64 75 -11 99    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 6.3  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86  
LOWEST 32  
AVERAGE 59  
   
......................................................
 
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 101 1931  
MINIMUM TEMPERATURE (F) 52 33 1926  
 
SUNRISE AND SUNSET  
JULY 20 2025..........SUNRISE 544 AM MDT SUNSET 904 PM MDT  
JULY 21 2025..........SUNRISE 545 AM MDT SUNSET 903 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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