Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 202125
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT SAT SEP 20 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 20 2014...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         79    242 PM  91    1965  78      1       80
  MINIMUM         55    635 AM  40    1979  55      0       52
  AVERAGE         67                        66      1       66

PRECIPITATION (IN)
  TODAY            0.00          0.87 1966   0.14  -0.14     0.00
  MONTH TO DATE    0.21                      2.61  -2.40     0.31
  SINCE SEP 1      0.21                      2.61  -2.40     0.31
  SINCE JAN 1     36.42                     30.61   5.81    28.16

SNOWFALL (IN)
  TODAY            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
  TODAY            0                         2     -2        0
  MONTH TO DATE   22                        18      4       30
  SINCE SEP 1     22                        18      4       30
  SINCE JUL 1     25                        20      5       30

 COOLING
  TODAY            2                         4     -2        1
  MONTH TO DATE  120                       117      3      130
  SINCE SEP 1    120                       117      3      130
  SINCE JAN 1    953                      1133   -180     1221
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     5.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM
 LOWEST     45           300 PM
 AVERAGE    73

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        92      1998
                                             1965
 MINIMUM TEMPERATURE (F)   54        42      1991


SUNRISE AND SUNSET
SEPTEMBER 20 2014.....SUNRISE   656 AM EDT   SUNSET   710 PM EDT
SEPTEMBER 21 2014.....SUNRISE   657 AM EDT   SUNSET   708 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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