946  
CDUS41 KLWX 020524  
CLIIAD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
124 AM EDT SUN JUL 02 2023  
   
...............................
 
 
   
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 1 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1960 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 3:42 PM 96 2012 87 1 93  
MINIMUM 70 5:36 AM 41 1988 66 4 71  
AVERAGE 79 76 3 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.22 0.76 1984 0.14 0.08 0.09  
MONTH TO DATE 0.22 0.14 0.08 0.09  
SINCE JUN 1 2.52 4.44 -1.92 2.84  
SINCE JAN 1 12.50 21.68 -9.18 20.06  
 
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 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 5 13 -8 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 14 11 3 17  
MONTH TO DATE 14 11 3 17  
SINCE JUN 1 196 249 -53 254  
SINCE JAN 1 270 355 -85 383    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 4.6  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 6:00 PM  
LOWEST 63 2:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 98 1966  
MINIMUM TEMPERATURE (F) 66 44 1988  
 
SUNRISE AND SUNSET  
JULY 2 2023..........SUNRISE 5:48 AM EDT SUNSET 8:39 PM EDT  
JULY 3 2023..........SUNRISE 5:49 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.  
 

 
 
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