831  
CDUS45 KBYZ 211721  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1121 AM MDT SAT SEP 21 2019  
 
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 21 2019
 
 
VALID AS OF 1100 AM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1934 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 52 959 AM 91 1938 70 -18 73  
MINIMUM 46 121 AM 28 1995 46 0 38  
AVERAGE 49 58 -9 56  
 
PRECIPITATION (IN)  
TODAY 0.43 0.67 1991 0.05 0.38 0.00  
MONTH TO DATE 2.39 0.88 1.51 0.11  
SINCE OCT 1 18.16 13.24 4.92 20.14  
SINCE JAN 1 16.31 10.93 5.38 16.49  
 
SNOWFALL (IN)  
TODAY MM 0.5 2000 0.1 MM MM  
MONTH TO DATE 0.0 0.5 -0.5 0.0  
SINCE SEP 1 0.0 0.5 -0.5 0.0  
SINCE JUL 1 T 0.5 -0.5 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 16 8 8 9  
MONTH TO DATE 65 103 -38 89  
SINCE SEP 1 65 103 -38 89  
SINCE JUL 1 73 135 -62 148  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 105 45 60 35  
SINCE SEP 1 105 45 60 35  
SINCE JAN 1 824 627 197 553    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 12.5  
 
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 86 300 AM  
AVERAGE 90  
 
 
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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