Climatological Report (Daily)
Issued by NWS Sterling, VA

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377
CDUS41 KLWX 220527
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
127 AM EDT FRI MAY 22 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 21 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         58    101 AM  92    1996  76    -18       77
  MINIMUM         50    124 PM  33    1992  53     -3       55
  AVERAGE         54                        64    -10       66

PRECIPITATION (IN)
  YESTERDAY        0.26          1.06 2003   0.16   0.10     0.07
  MONTH TO DATE    1.41                      3.03  -1.62     4.71
  SINCE MAR 1      7.79                      9.88  -2.09    16.22
  SINCE JAN 1     12.81                     15.30  -2.49    22.72

SNOWFALL (IN)
  YESTERDAY        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
  YESTERDAY       11                         3      8        0
  MONTH TO DATE   37                       106    -69       84
  SINCE MAR 1   1103                      1088     15     1323
  SINCE JUL 1   5104                      4678    426     5154

 COOLING
  YESTERDAY        0                         3     -3        1
  MONTH TO DATE   99                        36     63       45
  SINCE MAR 1    102                        56     46       56
  SINCE JAN 1    102                        56     46       56
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     3.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96          1000 AM
 LOWEST     55           100 AM
 AVERAGE    76

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


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 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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