AFOS product CLIIAD
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CLIIAD

CLIMATE REPORT 
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 
130 AM EDT MON MAY 16 2022

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 15 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2022


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL           
...................................................................
TEMPERATURE (F)                                                          
 YESTERDAY                                                           
  MAXIMUM         83   3:13 PM  90    1962  75      8       77        
  MINIMUM         63   7:50 AM  37    1984  53     10       39        
                                      2016                           
  AVERAGE         73                        64      9       58     

PRECIPITATION (IN)                                                    
  YESTERDAY        T             2.40 2003   0.16  -0.16     0.00     
  MONTH TO DATE    3.72                      2.22   1.50     1.02     
  SINCE MAR 1      7.89                      9.19  -1.30     5.57     
  SINCE JAN 1     14.09                     14.74  -0.65    11.73     

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 MAR 1      3.5                       4.0   -0.5       T       
  SINCE JUL 1     15.8                      21.0   -5.2     12.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         4     -4        7        
  MONTH TO DATE   74                        73      1      104        
  SINCE MAR 1    940                      1040   -100      919        
  SINCE JUL 1   4014                      4550   -536     4112        

 COOLING                                                              
  YESTERDAY        8                         2      6        0        
  MONTH TO DATE   21                        26     -5       17        
  SINCE MAR 1     35                        48    -13       43        
  SINCE JAN 1     35                        48    -13       43        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     N (340)       
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     N (340)       
  AVERAGE WIND SPEED     4.8                                        


SKY COVER                                                             
  AVERAGE SKY COVER 0.9                                                 


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  THUNDERSTORM                                                        
  LIGHT RAIN                                                          
  FOG                                                                 
  FOG W/VISIBILITY <= 1/4 MILE                                        


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          12:00 AM                                      
 LOWEST     53           2:00 PM                                      
 AVERAGE    77                                                        

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   75        90      1998                      
 MINIMUM TEMPERATURE (F)   53        35      2000                      


SUNRISE AND SUNSET                                                    
MAY 16 2022...........SUNRISE   5:56 AM EDT   SUNSET   8:17 PM EDT     
MAY 17 2022...........SUNRISE   5:55 AM EDT   SUNSET   8:17 PM EDT     


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




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