Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 212134
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT SUN OCT 21 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 21 2018...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         52    235 PM  86    1979  67    -15       77
  MINIMUM         44    643 AM  22    1972  42      2       42
  AVERAGE         48                        54     -6       60

PRECIPITATION (IN)
  TODAY            T             2.45 1995   0.11  -0.11     0.00
  MONTH TO DATE    1.28                      2.19  -0.91     1.48
  SINCE SEP 1      8.64                      6.11   2.53     3.23
  SINCE JAN 1     51.90                     34.11  17.79    36.23

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           17                        11      6        5
  MONTH TO DATE  113                       172    -59       85
  SINCE SEP 1    126                       228   -102      125
  SINCE JUL 1    126                       230   -104      126

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE   97                        16     81       64
  SINCE SEP 1    338                       157    181      219
  SINCE JAN 1   1522                      1173    349     1280
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    16.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          1200 AM
 LOWEST     46           400 PM
 AVERAGE    63

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        85      1979
 MINIMUM TEMPERATURE (F)   42        26      1974


SUNRISE AND SUNSET
OCTOBER 21 2018.......SUNRISE   725 AM EDT   SUNSET   623 PM EDT
OCTOBER 22 2018.......SUNRISE   726 AM EDT   SUNSET   622 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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