Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 202123
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
423 PM EST MON NOV 20 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR NOVEMBER 20 2017...
VALID TODAY AS OF 0400 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         53    241 PM  79    1942  56     -3
  MINIMUM         38    702 AM  20    1901  40     -2
  AVERAGE         46                        48     -2

PRECIPITATION (IN)
  TODAY            0.00          1.83 1952   0.11  -0.11
  MONTH TO DATE    1.98                      2.10  -0.12
  SINCE SEP 1      5.43                      9.22  -3.79
  SINCE JAN 1     35.08                     35.62  -0.54

SNOWFALL (IN)
  TODAY            0.0           0.5  1961   0.0    0.0
  MONTH TO DATE    0.0                       0.2   -0.2
  SINCE JUL 1      0.0                       0.2   -0.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           19                                2
  MONTH TO DATE  293                               16
  SINCE SEP 1    386                             -120
  SINCE JUL 1    386                             -120

 COOLING
  TODAY            0                                0
  MONTH TO DATE    3                                3
  SINCE SEP 1    335                               99
  SINCE JAN 1   1826                              279
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    11.0




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    57
 LOWEST     30
 AVERAGE    44

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        79      1900
 MINIMUM TEMPERATURE (F)   40        18      1872


SUNRISE AND SUNSET
NOVEMBER 20 2017......SUNRISE   656 AM EST   SUNSET   451 PM EST
NOVEMBER 21 2017......SUNRISE   657 AM EST   SUNSET   450 PM EST


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




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