956  
CDUS45 KBYZ 112238  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
438 PM MDT THU SEP 11 2025  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 11 2025  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 75 318 PM 96 1959 77 -2 80  
MINIMUM 60 513 AM 28 1989 50 10 57  
AVERAGE 68 63 5 69  
 
PRECIPITATION (IN)  
TODAY T 0.97 1988 0.05 -0.05 0.09  
MONTH TO DATE 0.04 0.46 -0.42 0.11  
SINCE OCT 1 14.80 13.41 1.39 11.44  
SINCE JAN 1 13.50 10.87 2.63 9.05  
 
SNOWFALL (IN)  
TODAY 0.0 1.4 1970 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 T 0.0 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 0  
MONTH TO DATE 10 34 -24 0  
SINCE SEP 1 10 34 -24 0  
SINCE JUL 1 26 70 -44 14  
 
COOLING  
TODAY 3 2 1 4  
MONTH TO DATE 48 36 12 76  
SINCE SEP 1 48 36 12 76  
SINCE JAN 1 633 631 2 743    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 70 500 AM  
LOWEST 40 200 PM  
AVERAGE 55  
   
......................................................  
 
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 93 1981  
1990  
2015  
MINIMUM TEMPERATURE (F) 50 30 1970  
2014  
 
SUNRISE AND SUNSET  
SEPTEMBER 11 2025.....SUNRISE 648 AM MDT SUNSET 732 PM MDT  
SEPTEMBER 12 2025.....SUNRISE 649 AM MDT SUNSET 730 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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