Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 220523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT THU JUN 22 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 21 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         88    150 PM  98    1988  86      2       87
  MINIMUM         64    522 AM  49    1992  63      1       68
  AVERAGE         76                        74      2       78

PRECIPITATION (IN)
  YESTERDAY        0.00         10.67 1972   0.13  -0.13     1.69
  MONTH TO DATE    0.86                      2.84  -1.98     5.70
  SINCE JUN 1      0.86                      2.84  -1.98     5.70
  SINCE JAN 1     19.95                     19.66   0.29    23.37

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                         0      0        0
  MONTH TO DATE    6                        13     -7        3
  SINCE JUN 1      6                        13     -7        3
  SINCE JUL 1   3858                      4715   -857     4039

 COOLING
  YESTERDAY       11                         9      2       13
  MONTH TO DATE  177                       146     31      174
  SINCE JUN 1    177                       146     31      174
  SINCE JAN 1    314                       238     76      272
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     5.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           400 AM
 LOWEST     35          1200 PM
 AVERAGE    64

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        99      1988
 MINIMUM TEMPERATURE (F)   63        48      1992
                                             1963


SUNRISE AND SUNSET
JUNE 22 2017..........SUNRISE   545 AM EDT   SUNSET   839 PM EDT
JUNE 23 2017..........SUNRISE   545 AM EDT   SUNSET   839 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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