284  
CDUS45 KBYZ 211740  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1140 AM MDT SUN MAY 21 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 21 2023
 
 
VALID AS OF 1100 AM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 72 959 AM 91 1980 69 3 52  
MINIMUM 54 619 AM 31 1963 46 8 35  
2021  
AVERAGE 63 57 6 44  
 
PRECIPITATION (IN)  
TODAY 0.00 2.83 1952 0.09 -0.09 0.00  
MONTH TO DATE 1.56 1.48 0.08 1.16  
SINCE OCT 1 7.04 7.76 -0.72 8.37  
SINCE JAN 1 4.99 5.22 -0.23 5.61  
 
SNOWFALL (IN)  
TODAY MM T 1999 0.0 MM 0.0  
2016  
2021  
MONTH TO DATE T 0.8 -0.8 T  
SINCE MAR 1 18.6 16.5 2.1 21.5  
SINCE JUL 1 56.1 57.3 -1.2 62.8  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 8 -6 21  
MONTH TO DATE 148 245 -97 271  
SINCE MAR 1 1874 1661 213 1828  
SINCE JUL 1 6947 6596 351 6388  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 6 2 4 0  
SINCE MAR 1 6 3 3 0  
SINCE JAN 1 6 3 3 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 500 AM  
LOWEST 49 1000 AM  
AVERAGE 65  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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