320  
CDUS45 KBYZ 200937  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
337 AM MDT WED SEP 20 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 19 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 76 418 PM 93 1981 73 3 88  
2009  
MINIMUM 56 1158 PM 26 1983 48 8 51  
AVERAGE 66 60 6 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.68 2000 0.05 -0.05 0.00  
MONTH TO DATE 0.13 0.81 -0.68 0.55  
SINCE OCT 1 16.68 13.76 2.92 15.37  
SINCE JAN 1 14.63 11.22 3.41 12.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.7 1983 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 0 6 -6 0  
MONTH TO DATE 8 75 -67 28  
SINCE SEP 1 8 75 -67 28  
SINCE JUL 1 24 111 -87 34  
 
COOLING  
YESTERDAY 1 2 -1 5  
MONTH TO DATE 75 52 23 122  
SINCE SEP 1 75 52 23 122  
SINCE JAN 1 707 647 60 895    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 46 400 AM  
LOWEST 23 400 PM  
AVERAGE 35  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 1938  
MINIMUM TEMPERATURE (F) 47 26 1983  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 658 AM MDT SUNSET 716 PM MDT  
SEPTEMBER 21 2023.....SUNRISE 700 AM MDT SUNSET 714 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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