Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 212123
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT FRI JUL 21 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 21 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         97    320 PM 104    1926  89      8
  MINIMUM         81    458 AM  56    1909  71     10
                                      1890
  AVERAGE         89                        80      9

PRECIPITATION (IN)
  TODAY            0.00          2.56 1911   0.11  -0.11
  MONTH TO DATE    3.00                      2.57   0.43
  SINCE JUN 1      4.13                      6.35  -2.22
  SINCE JAN 1     18.92                     22.31  -3.39

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  389                               79
  SINCE JUN 1    766                              142
  SINCE JAN 1    964                              206
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     5.7




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82
 LOWEST     45
 AVERAGE    64

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89       103      1926
 MINIMUM TEMPERATURE (F)   71        53      1890


SUNRISE AND SUNSET
JULY 21 2017..........SUNRISE   600 AM EDT   SUNSET   829 PM EDT
JULY 22 2017..........SUNRISE   601 AM EDT   SUNSET   828 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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