247  
CDUS45 KBYZ 121739  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1139 AM MDT TUE SEP 12 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 12 2023
 
 
VALID AS OF 1100 AM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 68 959 AM 93 1981 76 -8 87  
1990  
2015  
MINIMUM 51 431 AM 30 1970 50 1 58  
2014  
AVERAGE 60 63 -3 73  
 
PRECIPITATION (IN)  
TODAY 0.00 1.06 1993 0.04 -0.04 0.00  
MONTH TO DATE 0.11 0.50 -0.39 0.43  
SINCE OCT 1 16.66 13.45 3.21 15.25  
SINCE JAN 1 14.61 10.91 3.70 12.49  
 
SNOWFALL (IN)  
TODAY MM 0.4 1970 0.0 MM 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 MM  
 
DEGREE DAYS  
HEATING  
TODAY 5 4 1 0  
MONTH TO DATE 13 38 -25 20  
SINCE SEP 1 13 38 -25 20  
SINCE JUL 1 29 74 -45 26  
 
COOLING  
TODAY 0 2 -2 8  
MONTH TO DATE 45 38 7 112  
SINCE SEP 1 45 38 7 112  
SINCE JAN 1 677 633 44 885    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 700 AM  
LOWEST 42 1000 AM  
AVERAGE 57  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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