Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 282128
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
527 PM EDT FRI APR 28 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 28 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         83    359 PM  88    1990  71     12       54
                                      1983
                                      1981
  MINIMUM         57    535 AM  32    1993  46     11       47
                                      1972
  AVERAGE         70                        58     12       51

PRECIPITATION (IN)
  TODAY            0.00          1.68 2002   0.12  -0.12     0.42
  MONTH TO DATE    3.04                      3.24  -0.20     1.82
  SINCE MAR 1      7.16                      6.62   0.54     3.27
  SINCE JAN 1     10.60                     12.04  -1.44    11.53

SNOWFALL (IN)
  TODAY            0.0           0.0  2002   0.0    0.0
                                      2001
  MONTH TO DATE    T                         0.3   -0.3
  SINCE JUL 1      7.3                      22.0  -14.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                         8     -8       14
  MONTH TO DATE  179                       323   -144      310
  SINCE MAR 1    819                       970   -151      756
  SINCE JUL 1   3712                      4560   -848     3847

 COOLING
  TODAY            5                         1      4        0
  MONTH TO DATE   43                        16     27       18
  SINCE MAR 1     45                        19     26       23
  SINCE JAN 1     45                        19     26       23
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           600 AM
 LOWEST     43           200 PM
 AVERAGE    72

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        87      1996
                                             1974
 MINIMUM TEMPERATURE (F)   46        32      1987


SUNRISE AND SUNSET
APRIL 28 2017.........SUNRISE   615 AM EDT   SUNSET   800 PM EDT
APRIL 29 2017.........SUNRISE   614 AM EDT   SUNSET   801 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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