582  
CDUS45 KBYZ 180340  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
940 PM MDT SUN OCT 17 2021  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR OCTOBER 17 2021
 
 
VALID AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 73 327 PM 82 1939 58 15 50  
2003  
MINIMUM 43 543 AM 20 1948 37 6 22  
AVERAGE 58 47 11 36  
 
PRECIPITATION (IN)  
TODAY 0.00 0.59 1938 0.05 -0.05 0.52  
MONTH TO DATE 1.01 0.87 0.14 0.72  
SINCE OCT 1 1.01 0.87 0.14 0.72  
SINCE JAN 1 8.38 12.64 -4.26 11.00  
 
SNOWFALL (IN)  
TODAY MM 5.2 2020 0.1 MM 5.2  
MONTH TO DATE 6.0 2.1 3.9 5.2  
SINCE SEP 1 6.0 2.4 3.6 5.2  
SINCE JUL 1 6.0 2.4 3.6 5.2  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 7 18 -11 29  
MONTH TO DATE 197 242 -45 163  
SINCE SEP 1 277 410 -133 290  
SINCE JUL 1 312 446 -134 303  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 12 1 11 10  
SINCE SEP 1 105 63 42 81  
SINCE JAN 1 1042 658 384 761    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 10.8  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 60 400 AM  
LOWEST 16 400 PM  
AVERAGE 38  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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