640  
CDUS45 KTFX 180737  
CLILWT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
137 AM MDT FRI JUL 18 2025  
   
...............................  
 
   
..THE LEWISTOWN MT CLIMATE SUMMARY FOR JULY 17 2025  
 
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)  
YESTERDAY  
MAXIMUM 78 446 PM 101 2022 83 -5 90  
MINIMUM 43 442 AM 38 1982 51 -8 56  
AVERAGE 61 67 -6 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.27 1987 0.06 -0.06 0.00  
MONTH TO DATE 1.06 1.08 -0.02 0.51  
SINCE OCT 1 11.05 13.41 -2.36 13.78  
SINCE JAN 1 9.68 10.96 -1.28 11.32  
 
SNOWFALL (IN)  
YESTERDAY MM  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 2 2 0  
MONTH TO DATE 41 49 -8 48  
SINCE JUN 1 235 275 -40 291  
SINCE JUL 1 41 49 -8 48  
 
COOLING  
YESTERDAY 0 4 -4 8  
MONTH TO DATE 52 45 7 69  
SINCE JUN 1 55 62 -7 79  
SINCE JAN 1 58 63 -5 79    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 200 AM  
LOWEST 36 400 PM  
AVERAGE 66  
   
......................................................  
 
THE LEWISTOWN MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 100 1955  
MINIMUM TEMPERATURE (F) 51 36 1919  
 
SUNRISE AND SUNSET  
JULY 18 2025..........SUNRISE 541 AM MDT SUNSET 906 PM MDT  
JULY 19 2025..........SUNRISE 542 AM MDT SUNSET 905 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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