295  
CDUS45 KBYZ 302230  
CLIBIL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BILLINGS MT  
430 PM MDT SAT SEP 30 2023  
   
...............................
 
 
   
..THE BILLINGS MT CLIMATE SUMMARY FOR SEPTEMBER 30 2023
 
 
VALID TODAY AS OF 0400 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 68 259 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 14 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
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  
   
......................................................
 
 
THE BILLINGS MT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 91 2011  
MINIMUM TEMPERATURE (F) 43 23 1950  
 
SUNRISE AND SUNSET  
SEPTEMBER 30 2023.....SUNRISE 711 AM MDT SUNSET 656 PM MDT  
OCTOBER 1 2023.......SUNRISE 712 AM MDT SUNSET 654 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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