187  
CDUS45 KBYZ 210931  
CLIMLS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
331 AM MDT SUN SEP 21 2025  
   
...............................
 
 
   
..THE MILES CITY MT CLIMATE SUMMARY FOR SEPTEMBER 20 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1937 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 339 PM 95 1937 74 7 80  
MINIMUM 46 601 AM 28 1983 45 1 49  
AVERAGE 64 59 5 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.54 2018 0.04 -0.04 T  
MONTH TO DATE 0.70 0.69 0.01 0.31  
SINCE OCT 1 10.83 12.50 -1.67 11.21  
SINCE JAN 1 9.76 10.98 -1.22 10.04  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 7 -6 0  
MONTH TO DATE 39 87 -48 21  
SINCE SEP 1 39 87 -48 21  
SINCE JUL 1 52 121 -69 46  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 64 56 8 87  
SINCE SEP 1 64 56 8 87  
SINCE JAN 1 773 719 54 784    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 700 AM  
LOWEST 22 400 PM  
AVERAGE 58  
   
......................................................
 
 
THE MILES CITY MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 94 1938  
MINIMUM TEMPERATURE (F) 45 19 1995  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2025.....SUNRISE 650 AM MDT SUNSET 702 PM MDT  
SEPTEMBER 22 2025.....SUNRISE 651 AM MDT SUNSET 700 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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