374  
CDUS45 KBYZ 220431  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
931 PM MST SAT DEC 21 2024  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 21 2024
 
 
VALID AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 58R 1207 PM 57 1974 35 23 54  
1994  
MINIMUM 36 223 AM -26 1989 18 18 34  
1990  
AVERAGE 47 26 21 44  
 
PRECIPITATION (IN)  
TODAY 0.00 0.55 1966 0.02 -0.02 0.00  
MONTH TO DATE 0.25 0.38 -0.13 0.10  
SINCE OCT 1 1.05 2.35 -1.30 2.16  
SINCE JAN 1 11.71 14.12 -2.41 17.23  
 
SNOWFALL (IN)  
TODAY 0.0 4.7 1966 0.3 -0.3 0.0  
MONTH TO DATE T 6.2 -6.2 T  
SINCE DEC 1 T 6.2 -6.2 T  
SINCE JUL 1 3.9 17.5 -13.6 6.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 18 38 -20 21  
MONTH TO DATE 586 769 -183 528  
SINCE DEC 1 586 769 -183 528  
SINCE JUL 1 1858 2371 -513 1887  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 790 662 128 715    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 14.8  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 40 400 AM  
LOWEST 25 500 PM  
AVERAGE 33  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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