012  
CDUS45 KBYZ 121040  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
340 AM MST TUE DEC 12 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 11 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 40 1011 AM 67 2004 36 4 36  
MINIMUM 30 831 PM -17 1961 20 10 17  
AVERAGE 35 28 7 27  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.35 1984 0.02 0.02 0.00  
MONTH TO DATE 0.10 0.20 -0.10 0.28  
SINCE OCT 1 2.16 2.17 -0.01 1.72  
SINCE JAN 1 17.23 13.94 3.29 14.95  
 
SNOWFALL (IN)  
YESTERDAY T 5.5 1984 0.3 -0.3 0.0  
MONTH TO DATE T 3.1 -3.1 3.9  
SINCE DEC 1 T 3.1 -3.1 3.9  
SINCE JUL 1 6.7 14.4 -7.7 14.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 37 -7 38  
MONTH TO DATE 275 391 -116 463  
SINCE DEC 1 275 391 -116 463  
SINCE JUL 1 1634 1993 -359 2040  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 715 662 53 910    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
SNOW  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 800 PM  
LOWEST 46 700 AM  
AVERAGE 71  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 57 1988  
2017  
MINIMUM TEMPERATURE (F) 20 -11 2000  
 
SUNRISE AND SUNSET  
DECEMBER 12 2023......SUNRISE 746 AM MST SUNSET 430 PM MST  
DECEMBER 13 2023......SUNRISE 747 AM MST SUNSET 430 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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