569  
CDUS45 KBYZ 210940  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
340 AM MDT THU SEP 21 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 20 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 68 330 PM 91 1938 72 -4 58  
MINIMUM 47 617 AM 26 1983 47 0 49  
AVERAGE 58 60 -2 54  
 
PRECIPITATION (IN)  
YESTERDAY T 0.68 2019 0.05 -0.05 0.00  
MONTH TO DATE 0.13 0.86 -0.73 0.55  
SINCE OCT 1 16.68 13.81 2.87 15.37  
SINCE JAN 1 14.63 11.27 3.36 12.61  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.4 1995 0.1 -0.1 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 T 0.1 -0.1 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 7 0 11  
MONTH TO DATE 15 82 -67 39  
SINCE SEP 1 15 82 -67 39  
SINCE JUL 1 31 118 -87 45  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 75 53 22 122  
SINCE SEP 1 75 53 22 122  
SINCE JAN 1 707 648 59 895    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 9.7  
 
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 59 1000 PM  
LOWEST 32 200 PM  
AVERAGE 46  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 91 1938  
MINIMUM TEMPERATURE (F) 47 28 1995  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 700 AM MDT SUNSET 714 PM MDT  
SEPTEMBER 22 2023.....SUNRISE 701 AM MDT SUNSET 712 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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