Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 010526
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT SAT AUG 1 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 31 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         87    452 PM  98    1999  88     -1       85
  MINIMUM         63    437 AM  50    1997  66     -3       55
  AVERAGE         75                        77     -2       70

PRECIPITATION (IN)
  YESTERDAY        0.00          1.87 1978   0.12  -0.12     0.00
  MONTH TO DATE    4.89                      3.67   1.22     2.09
  SINCE JUN 1     12.33                      7.65   4.68     6.71
  SINCE JAN 1     26.19                     24.47   1.72    31.06

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      0.0                       0.0    0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1     15                        15      0        5
  SINCE JUL 1      0                         0      0        3

 COOLING
  YESTERDAY       10                        12     -2        5
  MONTH TO DATE  347                       363    -16      296
  SINCE JUN 1    624                       600     24      528
  SINCE JAN 1    806                       692    114      614
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     4.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           200 AM
 LOWEST     36           500 PM
 AVERAGE    62

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88       100      1980
 MINIMUM TEMPERATURE (F)   65        54      1997


SUNRISE AND SUNSET
AUGUST  1 2015........SUNRISE   610 AM EDT   SUNSET   821 PM EDT
AUGUST  2 2015........SUNRISE   611 AM EDT   SUNSET   820 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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