640  
CDUS45 KBOI 210121  
CLIMUO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
721 PM MDT SUN SEP 20 2026  
   
...............................
 
 
   
..THE MOUNTAIN HOME AFB CLIMATE SUMMARY FOR SEPTEMBER 20 2026
 
 
VALID TODAY AS OF 0700 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1949 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR LAST  
VALUE (LST) VALUE YEAR    
.................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 80 MM 94 1922 91  
MINIMUM 47 MM 27 1947 52  
AVERAGE 64 72  
 
PRECIPITATION (IN)  
TODAY 0.00 0.83 1982 0.00  
MONTH TO DATE 0.17 T  
SINCE OCT 1 4.48 4.89  
SINCE JAN 1 2.79 3.17  
 
DEGREE DAYS  
HEATING  
TODAY 1 0  
MONTH TO DATE 44 10  
SINCE SEP 1 44 10  
SINCE JUL 1 44 10  
 
COOLING  
TODAY 0 7  
MONTH TO DATE 32 110  
SINCE SEP 1 32 110  
SINCE JAN 1 1102 1095    
.................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 6.6  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 600 AM  
LOWEST 19 500 PM  
AVERAGE 51  
   
......................................................
 
 
THE MOUNTAIN HOME AFB CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 95 1936  
MINIMUM TEMPERATURE (F) 44 25 1926  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2026.....SUNRISE 729 AM MDT SUNSET 744 PM MDT  
SEPTEMBER 21 2026.....SUNRISE 730 AM MDT SUNSET 742 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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