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Climatological Report (Daily)
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CDUS41 KLWX 140532
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT TUE MAY 14 2013


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 13 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2013


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         61    233 PM  92    2000  74    -13       81
  MINIMUM         37    514 AM  32    1976  50    -13       57
  AVERAGE         49                        62    -13       69

PRECIPITATION (IN)
  YESTERDAY        0.00          1.93 1971   0.15  -0.15     0.00
  MONTH TO DATE    2.21                      1.79   0.42     0.62
  SINCE MAR 1      7.67                      8.64  -0.97     3.96
  SINCE JAN 1     13.00                     14.06  -1.06     8.05

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1     12.7                      22.0   -9.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       16                         5     11        0
  MONTH TO DATE   95                        76     19       23
  SINCE MAR 1   1145                      1058     87      698
  SINCE JUL 1   4509                      4648   -139     3752

 COOLING
  YESTERDAY        0                         2     -2        4
  MONTH TO DATE    8                        17     -9       31
  SINCE MAR 1     38                        37      1       59
  SINCE JAN 1     38                        37      1       59
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76          1200 AM
 LOWEST     23           200 PM
 AVERAGE    50

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   75        89      2010
 MINIMUM TEMPERATURE (F)   51        32      1996


SUNRISE AND SUNSET
MAY 14 2013...........SUNRISE   558 AM EDT   SUNSET   815 PM EDT
MAY 15 2013...........SUNRISE   557 AM EDT   SUNSET   816 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$
National Weather Service National Headquarters
