Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 290525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT THU JUN 29 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 28 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         80    323 PM  97    1966  87     -7       89
  MINIMUM         50    423 AM  44    1970  64    -14       66
  AVERAGE         65                        76    -11       78

PRECIPITATION (IN)
  YESTERDAY        0.00          1.06 1983   0.13  -0.13     0.06
  MONTH TO DATE    1.28                      3.73  -2.45     6.35
  SINCE JUN 1      1.28                      3.73  -2.45     6.35
  SINCE JAN 1     20.37                     20.55  -0.18    24.02

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        0                        11    -11       13
  MONTH TO DATE  230                       216     14      242
  SINCE JUN 1    230                       216     14      242
  SINCE JAN 1    367                       308     59      340
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     4.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           400 AM
 LOWEST     30           100 PM
 AVERAGE    57

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   87       102      2012
 MINIMUM TEMPERATURE (F)   64        47      1970


SUNRISE AND SUNSET
JUNE 29 2017..........SUNRISE   547 AM EDT   SUNSET   839 PM EDT
JUNE 30 2017..........SUNRISE   548 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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