Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 302133
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
533 PM EDT THU JUL 30 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 30 2015...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         89   1154 AM  98    1988  88      1       79
  MINIMUM         74   1231 PM  48    2014  66      8       48
  AVERAGE         82                        77      5       64

PRECIPITATION (IN)
  TODAY            1.15R         0.66 1970   0.13   1.02     0.00
  MONTH TO DATE    4.89                      3.55   1.34     2.09
  SINCE JUN 1     12.33                      7.53   4.80     6.71
  SINCE JAN 1     26.19                     24.35   1.84    31.06

SNOWFALL (IN)
  TODAY            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
  TODAY            0                         0      0        1
  MONTH TO DATE    0                         0      0        3
  SINCE JUN 1     15                        15      0        5
  SINCE JUL 1      0                         0      0        3

 COOLING
  TODAY           17                        12      5        0
  MONTH TO DATE  340                       355    -15      291
  SINCE JUN 1    617                       592     25      523
  SINCE JAN 1    799                       684    115      609
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    44   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94           700 AM
 LOWEST     64          1200 PM
 AVERAGE    79

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


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


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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