Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 010523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT TUE SEP 1 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 31 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         87    453 PM  98    1991  85      2       90
  MINIMUM         70    556 AM  43    1976  62      8       71
  AVERAGE         79                        73      6       81

PRECIPITATION (IN)
  YESTERDAY        0.01          3.21 1975   0.10  -0.09     0.44
  MONTH TO DATE    1.09                      3.53  -2.44     5.15
  SINCE JUN 1     13.42                     11.18   2.24    11.86
  SINCE JAN 1     27.28                     28.00  -0.72    36.21

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1     15                        17     -2        5
  SINCE JUL 1      0                         2     -2        3

 COOLING
  YESTERDAY       14                         8      6       16
  MONTH TO DATE  305                       324    -19      219
  SINCE JUN 1    929                       924      5      747
  SINCE JAN 1   1111                      1016     95      833
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           600 AM
 LOWEST     46           500 PM
 AVERAGE    68

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        98      1980
 MINIMUM TEMPERATURE (F)   62        49      1976
                                             1970


SUNRISE AND SUNSET
SEPTEMBER  1 2015.....SUNRISE   638 AM EDT   SUNSET   741 PM EDT
SEPTEMBER  2 2015.....SUNRISE   639 AM EDT   SUNSET   739 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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