139  
CDUS45 KBYZ 092240  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
440 PM MDT FRI MAY 09 2025  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 9 2025  
 
VALID TODAY AS OF 0400 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 75 259 PM 86 1987 64 11 58  
MINIMUM 48 512 AM 27 1996 41 7 45  
2002  
AVERAGE 62 53 9 52  
 
PRECIPITATION (IN)  
TODAY T 1.08 2011 0.06 -0.06 0.13  
MONTH TO DATE 0.40 0.53 -0.13 1.41  
SINCE OCT 1 8.90 6.81 2.09 7.14  
SINCE JAN 1 7.60 4.27 3.33 4.75  
 
SNOWFALL (IN)  
TODAY MM 5.7 1986 0.0 MM 0.0  
MONTH TO DATE T 0.5 -0.5 T  
SINCE MAR 1 16.2 16.2 0.0 9.2  
SINCE JUL 1 64.2 57.0 7.2 35.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 3 12 -9 13  
MONTH TO DATE 77 123 -46 174  
SINCE MAR 1 1296 1539 -243 1514  
SINCE JUL 1 6059 6474 -415 5889  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 1 -1 0  
SINCE JAN 1 0 1 -1 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 7.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 500 AM  
LOWEST 37 100 PM  
AVERAGE 60  
   
......................................................  
 
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 85 1940  
MINIMUM TEMPERATURE (F) 42 25 1967  
 
SUNRISE AND SUNSET  
MAY 9 2025...........SUNRISE 550 AM MDT SUNSET 832 PM MDT  
MAY 10 2025...........SUNRISE 548 AM MDT SUNSET 834 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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