Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 220525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT TUE MAY 22 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 21 2018...

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)
 YESTERDAY
  MAXIMUM         82    222 PM  92    1996  76      6       67
  MINIMUM         63    148 AM  33    1992  53     10       57
  AVERAGE         73                        64      9       62

PRECIPITATION (IN)
  YESTERDAY        0.00          1.06 2003   0.16  -0.16      T
  MONTH TO DATE    5.67                      3.03   2.64     4.85
  SINCE MAR 1     11.01                      9.88   1.13    12.01
  SINCE JAN 1     17.40                     15.30   2.10    15.45

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1     11.9                      22.0  -10.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         3     -3        3
  MONTH TO DATE   21                       106    -85      129
  SINCE MAR 1   1210                      1088    122      948
  SINCE JUL 1   4561                      4678   -117     3841

 COOLING
  YESTERDAY        8                         3      5        0
  MONTH TO DATE   90                        36     54       50
  SINCE MAR 1    105                        56     49      119
  SINCE JAN 1    110                        56     54      119
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     54          1200 PM
 AVERAGE    77

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        88      2004
                                             1984
                                             1975
 MINIMUM TEMPERATURE (F)   53        31      2002


SUNRISE AND SUNSET
MAY 22 2018...........SUNRISE   552 AM EDT   SUNSET   822 PM EDT
MAY 23 2018...........SUNRISE   551 AM EDT   SUNSET   823 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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