Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 222121
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
521 PM EDT FRI MAY 22 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 22 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         75    343 PM  88    2004  77     -2       85
                                      1984
                                      1975
  MINIMUM         46    458 AM  31    2002  53     -7       61
  AVERAGE         61                        65     -4       73

PRECIPITATION (IN)
  TODAY            0.00          2.07 2001   0.15  -0.15      T
  MONTH TO DATE    1.41                      3.18  -1.77     4.71
  SINCE MAR 1      7.79                     10.03  -2.24    16.22
  SINCE JAN 1     12.81                     15.45  -2.64    22.72

SNOWFALL (IN)
  TODAY            0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1     36.9                      22.0   14.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            4                         3      1        0
  MONTH TO DATE   41                       109    -68       84
  SINCE MAR 1   1107                      1091     16     1323
  SINCE JUL 1   5108                      4681    427     5154

 COOLING
  TODAY            0                         3     -3        8
  MONTH TO DATE   99                        39     60       53
  SINCE MAR 1    102                        59     43       64
  SINCE JAN 1    102                        59     43       64
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    10.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83          1200 AM
 LOWEST     31           400 PM
 AVERAGE    57

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        92      1964
 MINIMUM TEMPERATURE (F)   53        39      2002
                                             1990
                                             1971


SUNRISE AND SUNSET
MAY 22 2015...........SUNRISE   552 AM EDT   SUNSET   822 PM EDT
MAY 23 2015...........SUNRISE   551 AM EDT   SUNSET   822 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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