AFOS product CLIIAD
Dates interpreted at 00:00 UTC
Download date range (UTC midnight)
Bulk Download
329 
CDUS41 KLWX 100527
CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
127 AM EDT FRI APR 10 2020

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 9 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         69  12:30 PM  89    2001  65      4       79        
  MINIMUM         45  11:59 PM  23    1977  40      5       55        
  AVERAGE         57                        52      5       67     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.12          1.02 1998   0.13  -0.01     0.00     
  MONTH TO DATE    0.48                      1.09  -0.61     0.38     
  SINCE MAR 1      2.47                      4.47  -2.00     4.93     
  SINCE JAN 1      9.04                      9.89  -0.85    12.39     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0           2.6  1982   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.2   -0.2      0.0      
  SINCE MAR 1      T                         3.0   -3.0      1.6      
  SINCE JUL 1      2.9                      21.9  -19.0     26.5      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        8                        13     -5        0        
  MONTH TO DATE   81                       129    -48      114        
  SINCE MAR 1    529                       776   -247      798        
  SINCE JUL 1   3673                      4366   -693     4303        

 COOLING                                                              
  YESTERDAY        0                         0      0        2        
  MONTH TO DATE    0                         0      0        8        
  SINCE MAR 1      3                         3      0        8        
  SINCE JAN 1      3                         3      0        8        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    39   HIGHEST WIND DIRECTION     W (290)       
  HIGHEST GUST SPEED    51   HIGHEST GUST DIRECTION     W (290)       
  AVERAGE WIND SPEED    14.4                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.6                                                 


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           7:00 AM                                      
 LOWEST     33           5:00 PM                                      
 AVERAGE    63                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   65        89      2013                      
 MINIMUM TEMPERATURE (F)   41        19      1985                      


SUNRISE AND SUNSET                                                    
APRIL 10 2020.........SUNRISE   6:40 AM EDT   SUNSET   7:43 PM EDT     
APRIL 11 2020.........SUNRISE   6:38 AM EDT   SUNSET   7:44 PM EDT     


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




$$