387  
CDUS45 KBYZ 010330  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
930 PM MDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 30 2023
 
 
VALID AS OF 0900 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1934 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 347 PM 90 1963 67 1 64  
MINIMUM 47 652 AM 23 1985 44 3 51  
AVERAGE 58 55 3 58  
 
PRECIPITATION (IN)  
TODAY T 0.54 2022 0.05 -0.05 0.54  
MONTH TO DATE 0.57 1.36 -0.79 1.17  
SINCE OCT 1 17.12 14.31 2.81 15.99  
SINCE JAN 1 15.07 11.77 3.30 13.23  
 
SNOWFALL (IN)  
TODAY 0.0 2.4 1950 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.3 -0.3 T  
SINCE SEP 1 0.0 0.3 -0.3 T  
SINCE JUL 1 T 0.3 -0.3 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 7 10 -3 7  
MONTH TO DATE 76 168 -92 66  
SINCE SEP 1 76 168 -92 66  
SINCE JUL 1 92 204 -112 72  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 80 62 18 137  
SINCE SEP 1 80 62 18 137  
SINCE JAN 1 712 657 55 910    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 9.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 400 AM  
LOWEST 43 100 PM  
AVERAGE 56  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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