403  
CDUS45 KBYZ 181037  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
337 AM MST MON DEC 18 2023  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR DECEMBER 17 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 49 1155 AM 67 1939 35 14 29  
MINIMUM 26 1000 PM -24 1964 19 7 13  
AVERAGE 38 27 11 21  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.38 1955 0.01 -0.01 0.00  
MONTH TO DATE 0.10 0.30 -0.20 0.44  
SINCE OCT 1 2.16 2.27 -0.11 1.88  
SINCE JAN 1 17.23 14.04 3.19 15.11  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.3 1963 0.3 -0.3 0.0  
MONTH TO DATE T 4.9 -4.9 6.7  
SINCE DEC 1 T 4.9 -4.9 6.7  
SINCE JUL 1 6.7 16.2 -9.5 16.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 27 38 -11 44  
MONTH TO DATE 442 617 -175 739  
SINCE DEC 1 442 617 -175 739  
SINCE JUL 1 1801 2219 -418 2316  
 
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 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 9.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 65 900 PM  
LOWEST 24 600 AM  
AVERAGE 45  
   
......................................................  
 
THE BILLINGS MT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 35 62 1979  
MINIMUM TEMPERATURE (F) 19 -19 1983  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 750 AM MST SUNSET 431 PM MST  
DECEMBER 19 2023......SUNRISE 751 AM MST SUNSET 431 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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