200  
CDUS45 KBYZ 211040  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
340 AM MST SAT DEC 21 2024  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 20 2024
 
 
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)  
YESTERDAY  
MAXIMUM 58R 250 PM 58 1941 35 23 57  
MINIMUM 22 137 AM -22 1990 18 4 37  
AVERAGE 40 27 13 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.34 1944 0.02 -0.02 0.00  
MONTH TO DATE 0.25 0.36 -0.11 0.10  
SINCE OCT 1 1.05 2.33 -1.28 2.16  
SINCE JAN 1 11.71 14.10 -2.39 17.23  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.8 1944 0.3 -0.3 0.0  
MONTH TO DATE T 5.9 -5.9 T  
SINCE DEC 1 T 5.9 -5.9 T  
SINCE JUL 1 3.9 17.2 -13.3 6.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 25 38 -13 18  
MONTH TO DATE 568 731 -163 507  
SINCE DEC 1 568 731 -163 507  
SINCE JUL 1 1840 2333 -493 1866  
 
COOLING  
YESTERDAY 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 23 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 10.6  
 
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 85 200 AM  
LOWEST 21 200 PM  
AVERAGE 53  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 57 1974  
1994  
MINIMUM TEMPERATURE (F) 18 -26 1989  
1990  
 
SUNRISE AND SUNSET  
DECEMBER 21 2024......SUNRISE 753 AM MST SUNSET 433 PM MST  
DECEMBER 22 2024......SUNRISE 753 AM MST SUNSET 433 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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