Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 182128
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
525 PM EDT FRI AUG 18 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR AUGUST 18 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE
                VALUE   (LST)  VALUE       VALUE  FROM
                                                  NORMAL
...............................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         91    358 PM  98    2002  87      4
  MINIMUM         78    656 AM  54    1902  70      8
  AVERAGE         85                        78      7

PRECIPITATION (IN)
  TODAY            0.00          1.67 1875   0.09  -0.09
  MONTH TO DATE    3.02                      1.77   1.25
  SINCE JUN 1     13.30                      9.28   4.02
  SINCE JAN 1     28.09                     25.24   2.85

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

DEGREE DAYS
 HEATING
  TODAY            0                                0
  MONTH TO DATE    0                                0
  SINCE JUN 1      1                               -5
  SINCE JUL 1      0                                0

 COOLING
  TODAY           20                                7
  MONTH TO DATE  247                               -1
  SINCE JUN 1   1147                              128
  SINCE JAN 1   1345                              192
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED    10.1




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91
 LOWEST     70
 AVERAGE    81

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86        98      2002
 MINIMUM TEMPERATURE (F)   70        53      1924


SUNRISE AND SUNSET
AUGUST 18 2017........SUNRISE   625 AM EDT   SUNSET   758 PM EDT
AUGUST 19 2017........SUNRISE   626 AM EDT   SUNSET   757 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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