991  
CDUS45 KBYZ 251740  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1140 AM MDT SUN MAY 25 2025  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 25 2025  
 
VALID AS OF 1100 AM 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 60 959 AM 88 1983 70 -10 69  
MINIMUM 43 444 AM 31 2012 47 -4 45  
AVERAGE 52 58 -6 57  
 
PRECIPITATION (IN)  
TODAY 0.00 0.81 1980 0.09 -0.09 T  
MONTH TO DATE 2.47 1.82 0.65 3.71  
SINCE OCT 1 10.97 8.10 2.87 9.44  
SINCE JAN 1 9.67 5.56 4.11 7.05  
 
SNOWFALL (IN)  
TODAY MM 2.2 2012 0.0 MM 0.0  
MONTH TO DATE T 0.9 -0.9 T  
SINCE MAR 1 16.2 16.6 -0.4 9.2  
SINCE JUL 1 64.2 57.4 6.8 35.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 13 7 6 8  
MONTH TO DATE 222 276 -54 313  
SINCE MAR 1 1441 1692 -251 1653  
SINCE JUL 1 6204 6627 -423 6028  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 10 6 4 1  
SINCE MAR 1 10 7 3 1  
SINCE JAN 1 10 7 3 1    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 500 AM  
LOWEST 64 1000 AM  
AVERAGE 82  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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