Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 270532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT THU APR 27 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 26 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         73    507 PM  92    2009  70      3       84
                                      1990
  MINIMUM         56    706 AM  31    1967  45     11       62
  AVERAGE         65                        58      7       73

PRECIPITATION (IN)
  YESTERDAY        T             0.93 2004   0.12  -0.12      T
  MONTH TO DATE    3.04                      3.00   0.04     1.38
  SINCE MAR 1      7.16                      6.38   0.78     2.83
  SINCE JAN 1     10.60                     11.80  -1.20    11.09

SNOWFALL (IN)
  YESTERDAY        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
  YESTERDAY        0                         8     -8        0
  MONTH TO DATE  179                       307   -128      292
  SINCE MAR 1    819                       954   -135      738
  SINCE JUL 1   3712                      4544   -832     3829

 COOLING
  YESTERDAY        0                         1     -1        8
  MONTH TO DATE   35                        14     21       18
  SINCE MAR 1     37                        17     20       23
  SINCE JAN 1     37                        17     20       23
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED     6.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           700 AM
 LOWEST     57           500 PM
 AVERAGE    79

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        92      2009
                                             1990
 MINIMUM TEMPERATURE (F)   45        31      1987
                                             1972


SUNRISE AND SUNSET
APRIL 27 2017.........SUNRISE   617 AM EDT   SUNSET   759 PM EDT
APRIL 28 2017.........SUNRISE   615 AM EDT   SUNSET   800 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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