CDUS45 KBOU 210735

CLIBDU



CLIMATE REPORT 

NATIONAL WEATHER SERVICE DENVER/BOULDER

135 AM MDT MON SEP 21 2026



...................................



...THE BOULDER AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 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         75     77     -2       82                           

  MINIMUM         54     47      7       55                           

  AVERAGE         65     62      3       69                        



DEGREE DAYS                                                           

 HEATING                                                              

  YESTERDAY        0                                                  

  MONTH TO DATE    1                                                  



 COOLING                                                              

  YESTERDAY        0                                                  

  MONTH TO DATE  150                                                  

................................................





WIND (MPH)                                                            

  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NE (40)        

  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    NE (40)        

  HIGHEST GUST SPEED    MM   HIGHEST GUST DIRECTION    MM            





SKY COVER                                                             

  POSSIBLE SUNSHINE  MM                                                 

  AVERAGE SKY COVER 0.5                                                 





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)   77        MM        MM                      

 MINIMUM TEMPERATURE (F)   46        MM        MM                      





SUNRISE AND SUNSET                                                    

SEPTEMBER 21 2026.....SUNRISE   648 AM MDT   SUNSET   659 PM MDT     

SEPTEMBER 22 2026.....SUNRISE   649 AM MDT   SUNSET   658 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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