Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 250525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT TUE APR 25 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 24 2017...

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)
 YESTERDAY
  MAXIMUM         57    111 PM  85    2011  70    -13       69
                                      1994
                                      1990
  MINIMUM         51   1159 PM  30    1989  45      6       44
  AVERAGE         54                        57     -3       57

PRECIPITATION (IN)
  YESTERDAY        0.27          1.25 1983   0.12   0.15     0.00
  MONTH TO DATE    2.87                      2.77   0.10     1.38
  SINCE MAR 1      6.99                      6.15   0.84     2.83
  SINCE JAN 1     10.43                     11.57  -1.14    11.09

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

DEGREE DAYS
 HEATING
  YESTERDAY       11                         9      2        8
  MONTH TO DATE  169                       290   -121      291
  SINCE MAR 1    809                       937   -128      737
  SINCE JUL 1   3702                      4527   -825     3828

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   35                        12     23       10
  SINCE MAR 1     37                        15     22       15
  SINCE JAN 1     37                        15     22       15
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (30)
  AVERAGE WIND SPEED     8.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           400 AM
 LOWEST     66          1100 AM
 AVERAGE    78

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        92      2009
 MINIMUM TEMPERATURE (F)   45        29      1969


SUNRISE AND SUNSET
APRIL 25 2017.........SUNRISE   619 AM EDT   SUNSET   757 PM EDT
APRIL 26 2017.........SUNRISE   618 AM EDT   SUNSET   758 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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