Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 202133
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
533 PM EDT THU JUL 20 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 20 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         98    359 PM 106    1930  89      9
  MINIMUM         79    512 AM  53    1890  71      8
  AVERAGE         89                        80      9

PRECIPITATION (IN)
  TODAY            0.00          1.45 1969   0.12  -0.12
  MONTH TO DATE    3.00                      2.46   0.54
  SINCE JUN 1      4.13                      6.24  -2.11
  SINCE JAN 1     18.92                     22.20  -3.28

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           24                                9
  MONTH TO DATE  365                               70
  SINCE JUN 1    742                              133
  SINCE JAN 1    940                              197
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     6.1




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85
 LOWEST     40
 AVERAGE    63

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89       104      1926
 MINIMUM TEMPERATURE (F)   71        56      1909
                                             1890


SUNRISE AND SUNSET
JULY 20 2017..........SUNRISE   559 AM EDT   SUNSET   829 PM EDT
JULY 21 2017..........SUNRISE   600 AM EDT   SUNSET   829 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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