423  
CDUS45 KBOU 120734  
CLIBDU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DENVER/BOULDER  
134 AM MDT SAT SEP 12 2026  
   
...............................
 
 
   
..THE BOULDER AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2026
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 9999 TO 9999  
 
WEATHER ITEM OBSERVED NORMAL DEPARTURE LAST  
VALUE VALUE FROM YEAR  
NORMAL    
............................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 91 81 10 90  
MINIMUM 59 50 9 61  
AVERAGE 75 65 10 76  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0  
MONTH TO DATE 0  
 
COOLING  
YESTERDAY 10  
MONTH TO DATE 112    
............................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (250)  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................
 
 
THE BOULDER AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 MM MM  
MINIMUM TEMPERATURE (F) 50 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 12 2026.....SUNRISE 639 AM MDT SUNSET 714 PM MDT  
SEPTEMBER 13 2026.....SUNRISE 640 AM MDT SUNSET 713 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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