241  
CDUS45 KBYZ 201732  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
1132 AM MDT TUE MAY 20 2025  
   
...............................  
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR MAY 20 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 91 1964 69 -9 59  
MINIMUM 42 317 AM 32 2003 45 -3 39  
2021  
2022  
AVERAGE 51 57 -6 49  
 
PRECIPITATION (IN)  
TODAY 0.00 1.33 2011 0.08 -0.08 0.02  
MONTH TO DATE 2.46 1.39 1.07 1.69  
SINCE OCT 1 10.96 7.67 3.29 7.42  
SINCE JAN 1 9.66 5.13 4.53 5.03  
 
SNOWFALL (IN)  
TODAY MM 0.4 1987 0.0 MM 0.0  
MONTH TO DATE T 0.8 -0.8 T  
SINCE MAR 1 16.2 16.5 -0.3 9.2  
SINCE JUL 1 64.2 57.3 6.9 35.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 14 9 5 16  
MONTH TO DATE 175 237 -62 248  
SINCE MAR 1 1394 1653 -259 1588  
SINCE JUL 1 6157 6588 -431 5963  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 10 1 9 1  
SINCE MAR 1 10 2 8 1  
SINCE JAN 1 10 2 8 1    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 1200 AM  
LOWEST 39 1000 AM  
AVERAGE 68  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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