AFOS product CLIIAD
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download Bulk Download
720 
CDUS41 KLWX 270626
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
226 AM EDT FRI JUN 27 2025

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 26 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         94   2:49 PM  99    2024  86      8       99        
  MINIMUM         71   4:59 AM  42    1979  65      6       70        
  AVERAGE         83                        75      8       85     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.07          1.92 2006   0.15  -0.08     0.36     
  MONTH TO DATE    6.90                      3.74   3.16     0.64     
  SINCE JUN 1      6.90                      3.74   3.16     0.64     
  SINCE JAN 1     20.82                     20.98  -0.16    17.94     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE JUN 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1     15.5                      21.0   -5.5     11.7      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         0      0        0        
  MONTH TO DATE   15                        11      4        0        
  SINCE JUN 1     15                        11      4        0        
  SINCE JUL 1   4106                      4603   -497     3691        

 COOLING                                                              
  YESTERDAY       18                        10      8       20        
  MONTH TO DATE  267                       194     73      290        
  SINCE JUN 1    267                       194     73      290        
  SINCE JAN 1    385                       300     85      473        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (180)       
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     S (170)       
  AVERAGE WIND SPEED     4.1                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.5                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  THUNDERSTORM                                                        
  LIGHT RAIN                                                          


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           4:00 AM                                      
 LOWEST     52           3:00 PM                                      
 AVERAGE    74                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   86       100      1964                      
 MINIMUM TEMPERATURE (F)   65        44      1979                      


SUNRISE AND SUNSET                                                    
JUNE 27 2025..........SUNRISE   5:46 AM EDT   SUNSET   8:39 PM EDT     
JUNE 28 2025..........SUNRISE   5:47 AM EDT   SUNSET   8:39 PM EDT     


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$