Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 270531
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 AM EDT SAT MAY 27 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 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         76    258 PM  92    2007  78     -2       89
  MINIMUM         53    129 AM  38    1967  54     -1       56
  AVERAGE         65                        66     -1       73

PRECIPITATION (IN)
  YESTERDAY        0.00          3.59 2009   0.14  -0.14     0.00
  MONTH TO DATE    6.61                      3.79   2.82     6.07
  SINCE MAR 1     13.77                     10.64   3.13     9.40
  SINCE JAN 1     17.21                     16.06   1.15    17.66

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        0
  MONTH TO DATE  139                       121     18      164
  SINCE MAR 1    958                      1103   -145      945
  SINCE JUL 1   3851                      4693   -842     4036

 COOLING
  YESTERDAY        0                         4     -4        8
  MONTH TO DATE   50                        52     -2       18
  SINCE MAR 1    119                        72     47       41
  SINCE JAN 1    119                        72     47       41
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     43           400 PM
 AVERAGE    72

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        92      2010
                                             1965
 MINIMUM TEMPERATURE (F)   55        37      1972


SUNRISE AND SUNSET
MAY 27 2017...........SUNRISE   548 AM EDT   SUNSET   826 PM EDT
MAY 28 2017...........SUNRISE   548 AM EDT   SUNSET   827 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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