Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 300530
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT THU JUL 30 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 29 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    259 PM 103    2011  88     -1       74
  MINIMUM         70    427 AM  52    2014  66      4       52
  AVERAGE         79                        77      2       63

PRECIPITATION (IN)
  YESTERDAY        0.00          0.92 2001   0.12  -0.12     0.00
  MONTH TO DATE    3.74                      3.42   0.32     2.09
  SINCE JUN 1     11.18                      7.40   3.78     6.71
  SINCE JAN 1     25.04                     24.22   0.82    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        2
  MONTH TO DATE    0                         0      0        2
  SINCE JUN 1     15                        15      0        4
  SINCE JUL 1      0                         0      0        2

 COOLING
  YESTERDAY       14                        12      2        0
  MONTH TO DATE  323                       343    -20      291
  SINCE JUN 1    600                       580     20      523
  SINCE JAN 1    782                       672    110      609
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     5.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     65           200 PM
 AVERAGE    83

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        98      1988
 MINIMUM TEMPERATURE (F)   66        48      2014


SUNRISE AND SUNSET
JULY 30 2015..........SUNRISE   609 AM EDT   SUNSET   823 PM EDT
JULY 31 2015..........SUNRISE   610 AM EDT   SUNSET   822 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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