Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 242126
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT SUN SEP 24 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 24 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         89    223 PM  97    2010  76     13       76
  MINIMUM         60    224 AM  30    1974  53      7       56
  AVERAGE         75                        64     11       66

PRECIPITATION (IN)
  TODAY            0.00          2.17 2001   0.13  -0.13     0.00
  MONTH TO DATE    1.75                      3.13  -1.38     0.40
  SINCE SEP 1      1.75                      3.13  -1.38     0.40
  SINCE JAN 1     34.75                     31.13   3.62    28.40

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

DEGREE DAYS
 HEATING
  TODAY            0                         3     -3        0
  MONTH TO DATE   30                        30      0        0
  SINCE SEP 1     30                        30      0        0
  SINCE JUL 1     31                        32     -1        0

 COOLING
  TODAY           10                         3      7        1
  MONTH TO DATE  112                       129    -17      252
  SINCE SEP 1    112                       129    -17      252
  SINCE JAN 1   1173                      1145     28     1515
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     4.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     46           200 PM
 AVERAGE    73

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        93      2010
 MINIMUM TEMPERATURE (F)   52        33      1983


SUNRISE AND SUNSET
SEPTEMBER 24 2017.....SUNRISE   659 AM EDT   SUNSET   703 PM EDT
SEPTEMBER 25 2017.....SUNRISE   700 AM EDT   SUNSET   702 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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