214  
CDUS45 KBYZ 311730  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1130 AM MDT SAT MAY 31 2025  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 31 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 73 959 AM 92 1936 72 1 69  
1940  
2020  
MINIMUM 51 534 AM 32 1951 49 2 45  
1982  
AVERAGE 62 60 2 57  
 
PRECIPITATION (IN)  
TODAY 0.00 0.90 1951 0.09 -0.09 0.00  
MONTH TO DATE 2.60 2.36 0.24 3.87  
SINCE OCT 1 11.10 8.64 2.46 9.60  
SINCE JAN 1 9.80 6.10 3.70 7.21  
 
SNOWFALL (IN)  
TODAY MM 4.0 1951 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 3 6 -3 8  
MONTH TO DATE 227 314 -87 351  
SINCE MAR 1 1446 1730 -284 1691  
SINCE JUL 1 6209 6665 -456 6066  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 13 14 -1 1  
SINCE MAR 1 13 15 -2 1  
SINCE JAN 1 13 15 -2 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 500 AM  
LOWEST 40 1000 AM  
AVERAGE 60  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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