478  
CDUS45 KBYZ 220330  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
930 PM MDT MON APR 21 2025  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR APRIL 21 2025  
 
VALID AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 57 215 PM 89 1980 58 -1 68  
MINIMUM 37 627 AM 15 2008 36 1 29  
AVERAGE 47 47 0 49  
 
PRECIPITATION (IN)  
TODAY 0.27 0.93 2004 0.06 0.21 T  
MONTH TO DATE 1.97 1.20 0.77 1.16  
SINCE OCT 1 7.09 5.76 1.33 5.33  
SINCE JAN 1 5.79 3.22 2.57 2.94  
 
SNOWFALL (IN)  
TODAY MM 2.3 1963 0.2 MM 0.0  
MONTH TO DATE 8.9 6.1 2.8 4.4  
SINCE MAR 1 16.2 14.3 1.9 9.2  
SINCE JUL 1 64.2 55.1 9.1 35.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 18 18 0 16  
MONTH TO DATE 384 427 -43 359  
SINCE MAR 1 1073 1266 -193 1227  
SINCE JUL 1 5836 6201 -365 5602  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 14.5  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 700 AM  
LOWEST 34 300 PM  
AVERAGE 66  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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