802  
CDUS45 KBYZ 151840  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1140 AM MST SUN DEC 15 2024  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 15 2024
 
 
VALID AS OF 1100 AM 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 39 1033 AM 69 1980 36 3 47  
MINIMUM 33 634 AM -20 1964 19 14 26  
AVERAGE 36 27 9 37  
 
PRECIPITATION (IN)  
TODAY 0.08 0.66 2016 0.02 0.06 0.00  
MONTH TO DATE 0.13 0.27 -0.14 0.10  
SINCE OCT 1 0.93 2.24 -1.31 2.16  
SINCE JAN 1 11.59 14.01 -2.42 17.23  
 
SNOWFALL (IN)  
TODAY MM 11.0 2016 0.3 MM 0.0  
MONTH TO DATE T 4.3 -4.3 T  
SINCE DEC 1 T 4.3 -4.3 T  
SINCE JUL 1 3.9 15.6 -11.7 6.7  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 29 38 -9 28  
MONTH TO DATE 416 541 -125 390  
SINCE DEC 1 416 541 -125 390  
SINCE JUL 1 1688 2143 -455 1749  
 
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 15 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 400 AM  
LOWEST 82 800 AM  
AVERAGE 89  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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