867  
CDUS45 KBOU 180731  
CLIAPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DENVER/BOULDER  
131 AM MDT THU SEP 18 2025  
   
...............................  
 
   
..THE CENTENNIAL CO CLIMATE SUMMARY FOR SEPTEMBER 17 2025  
 
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 69 77 -8 82  
MINIMUM 44 48 -4 58  
AVERAGE 57 63 -6 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 MM T  
MONTH TO DATE 0.32 0.00 0.66  
SINCE OCT 1 12.64 13.73 12.68  
SINCE JAN 1 10.74 11.85 11.59  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8  
MONTH TO DATE 29  
 
COOLING  
YESTERDAY 0  
MONTH TO DATE 62    
............................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (70)  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93  
LOWEST 42  
AVERAGE 68  
   
......................................................  
 
THE CENTENNIAL CO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 MM MM  
MINIMUM TEMPERATURE (F) 48 MM MM  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 644 AM MDT SUNSET 702 PM MDT  
SEPTEMBER 19 2025.....SUNRISE 645 AM MDT SUNSET 701 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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