Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 240533
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT MON APR 24 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 23 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         60    142 PM  88    2001  69     -9       70
  MINIMUM         45    617 AM  30    1989  44      1       53
  AVERAGE         53                        57     -4       62

PRECIPITATION (IN)
  YESTERDAY        0.00          0.67 1963   0.11  -0.11     0.18
  MONTH TO DATE    2.60                      2.65  -0.05     1.38
  SINCE MAR 1      6.72                      6.03   0.69     2.83
  SINCE JAN 1     10.16                     11.45  -1.29    11.09

SNOWFALL (IN)
  YESTERDAY        0.0           T    1986   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       12                         9      3        3
  MONTH TO DATE  158                       281   -123      283
  SINCE MAR 1    798                       928   -130      729
  SINCE JUL 1   3691                      4518   -827     3820

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   35                        11     24       10
  SINCE MAR 1     37                        14     23       15
  SINCE JAN 1     37                        14     23       15
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1200 AM
 LOWEST     51           500 PM
 AVERAGE    72

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        85      2011
                                             1994
                                             1990
 MINIMUM TEMPERATURE (F)   45        30      1989


SUNRISE AND SUNSET
APRIL 24 2017.........SUNRISE   620 AM EDT   SUNSET   756 PM EDT
APRIL 25 2017.........SUNRISE   619 AM EDT   SUNSET   757 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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