Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 212131
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
530 PM EDT SAT APR 21 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 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         62    303 PM  89    1985  69     -7       84
  MINIMUM         30    540 AM  29    1983  44    -14       61
  AVERAGE         46                        56    -10       73

PRECIPITATION (IN)
  TODAY            0.00          2.20 1992   0.11  -0.11      T
  MONTH TO DATE    1.63                      2.42  -0.79     2.10
  SINCE MAR 1      3.42                      5.80  -2.38     6.22
  SINCE JAN 1      9.81                     11.22  -1.41     9.66

SNOWFALL (IN)
  TODAY            0.0           0.0  2001   0.0    0.0
  MONTH TO DATE    T                         0.3   -0.3
  SINCE JUL 1     11.9                      22.0  -10.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           19                        10      9        0
  MONTH TO DATE  326                       263     63      138
  SINCE MAR 1   1105                       910    195      778
  SINCE JUL 1   4456                      4500    -44     3671

 COOLING
  TODAY            0                         1     -1        8
  MONTH TO DATE   15                         9      6       35
  SINCE MAR 1     15                        12      3       37
  SINCE JAN 1     20                        12      8       37
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED     3.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           600 AM
 LOWEST     23           400 PM
 AVERAGE    58

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        92      1985
 MINIMUM TEMPERATURE (F)   44        27      1975


SUNRISE AND SUNSET
APRIL 21 2018.........SUNRISE   625 AM EDT   SUNSET   753 PM EDT
APRIL 22 2018.........SUNRISE   623 AM EDT   SUNSET   754 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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