Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 180529
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 AM EDT SAT APR 18 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 17 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         79    234 PM  93    2002  67     12       54
  MINIMUM         54    559 AM  27    1983  43     11       28
  AVERAGE         67                        55     12       41

PRECIPITATION (IN)
  YESTERDAY        T             1.44 2000   0.11  -0.11     0.00
  MONTH TO DATE    1.04                      1.99  -0.95     1.68
  SINCE MAR 1      4.96                      5.37  -0.41     5.78
  SINCE JAN 1      9.98                     10.79  -0.81    12.28

SNOWFALL (IN)
  YESTERDAY        0.0           T    1983   0.0    0.0
  MONTH TO DATE    0.0                       0.3   -0.3
  SINCE JUL 1     36.9                      22.0   14.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        11    -11       24
  MONTH TO DATE  171                       223    -52      222
  SINCE MAR 1    932                       870     62     1071
  SINCE JUL 1   4933                      4460    473     4902

 COOLING
  YESTERDAY        2                         1      1        0
  MONTH TO DATE    2                         5     -3       11
  SINCE MAR 1      2                         8     -6       11
  SINCE JAN 1      2                         8     -6       11
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     3.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1200 AM
 LOWEST     50           100 PM
 AVERAGE    72

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        90      1976
 MINIMUM TEMPERATURE (F)   43        30      2014


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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