402  
CDUS45 KBYZ 100939  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
339 AM MDT SUN SEP 10 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 9 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 340 PM 95 1998 78 -5 62  
2005  
MINIMUM 54 621 AM 31 1962 51 3 48  
AVERAGE 64 64 0 55  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.43 1946 0.05 -0.04 0.03  
MONTH TO DATE 0.11 0.37 -0.26 0.43  
SINCE OCT 1 16.66 13.32 3.34 15.25  
SINCE JAN 1 14.61 10.78 3.83 12.49  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 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  
YESTERDAY 1 4 -3 10  
MONTH TO DATE 4 26 -22 11  
SINCE SEP 1 4 26 -22 11  
SINCE JUL 1 20 62 -42 17  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 45 31 14 101  
SINCE SEP 1 45 31 14 101  
SINCE JAN 1 677 626 51 874    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1200 AM  
LOWEST 42 400 PM  
AVERAGE 65  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 92 1935  
1966  
MINIMUM TEMPERATURE (F) 50 33 1989  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 646 AM MDT SUNSET 735 PM MDT  
SEPTEMBER 11 2023.....SUNRISE 647 AM MDT SUNSET 733 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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