Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 182124
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT SAT APR 18 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 18 2015...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         80    343 PM  90    1976  68     12       56
  MINIMUM         50    451 AM  30    2014  43      7       30
  AVERAGE         65                        55     10       43

PRECIPITATION (IN)
  TODAY            0.00          0.59 1978   0.10  -0.10     0.00
  MONTH TO DATE    1.04                      2.09  -1.05     1.68
  SINCE MAR 1      4.96                      5.47  -0.51     5.78
  SINCE JAN 1      9.98                     10.89  -0.91    12.28

SNOWFALL (IN)
  TODAY            0.0           0.0  2002   0.0    0.0
                                      2001
  MONTH TO DATE    0.0                       0.3   -0.3
  SINCE JUL 1     36.9                      22.0   14.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                        10    -10       22
  MONTH TO DATE  171                       233    -62      244
  SINCE MAR 1    932                       880     52     1093
  SINCE JUL 1   4933                      4470    463     4924

 COOLING
  TODAY            0                         1     -1        0
  MONTH TO DATE    2                         6     -4       11
  SINCE MAR 1      2                         9     -7       11
  SINCE JAN 1      2                         9     -7       11
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     3.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           600 AM
 LOWEST     28           400 PM
 AVERAGE    62

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        91      2002
 MINIMUM TEMPERATURE (F)   43        27      2001
                                             1990


SUNRISE AND SUNSET
APRIL 18 2015.........SUNRISE   629 AM EDT   SUNSET   750 PM EDT
APRIL 19 2015.........SUNRISE   628 AM EDT   SUNSET   751 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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