Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 310521
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
121 AM EDT THU JUL 31 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 30 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         79    215 PM  98    1988  88     -9       82
  MINIMUM         48R   530 AM  51    1981  66    -18       60
  AVERAGE         64                        77    -13       71

PRECIPITATION (IN)
  YESTERDAY        0.00          0.66 1970   0.13  -0.13     0.00
  MONTH TO DATE    2.09                      3.55  -1.46     7.13
  SINCE JUN 1      6.71                      7.53  -0.82    11.77
  SINCE JAN 1     31.06                     24.35   6.71    25.76

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        1                         0      1        0
  MONTH TO DATE    3                         0      3        0
  SINCE JUN 1      5                        15    -10        0
  SINCE JUL 1      3                         0      3        0

 COOLING
  YESTERDAY        0                        12    -12        6
  MONTH TO DATE  291                       355    -64      413
  SINCE JUN 1    523                       592    -69      669
  SINCE JAN 1    609                       684    -75      808
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     3.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           400 AM
 LOWEST     38          1200 PM
 AVERAGE    66

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   88        98      1999
 MINIMUM TEMPERATURE (F)   66        50      1997


SUNRISE AND SUNSET
JULY 31 2014..........SUNRISE   610 AM EDT   SUNSET   822 PM EDT
AUGUST  1 2014........SUNRISE   611 AM EDT   SUNSET   821 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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