Climatological Report (Daily)
Issued by NWS Sterling, VA

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974
CDUS41 KLWX 192130
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
430 PM EST FRI JAN 19 2018


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 19 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE
                VALUE   (LST)  VALUE       VALUE  FROM
                                                  NORMAL
...............................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         51    134 PM  71    1951  43      8
  MINIMUM         25    513 AM  -4    1994  28     -3
  AVERAGE         38                        36      2

PRECIPITATION (IN)
  TODAY            0.00          1.41 1936   0.09  -0.09
  MONTH TO DATE    0.67                      1.71  -1.04
  SINCE DEC 1      1.17                      4.76  -3.59
  SINCE JAN 1      0.67                      1.71  -1.04

SNOWFALL (IN)
  TODAY            0.0           7.0  1961   0.2   -0.2
  MONTH TO DATE    1.2                       3.0   -1.8
  SINCE JUL 1      3.1                       5.8   -2.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           27                               -2
  MONTH TO DATE  657                              106
  SINCE DEC 1   1449                              112
  SINCE JUL 1   1998                              -34

 COOLING
  TODAY            0                                0
  MONTH TO DATE    0                                0
  SINCE DEC 1      0                                0
  SINCE JAN 1      0                                0
...............................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     6.2




RELATIVE HUMIDITY (PERCENT)
 HIGHEST    81
 LOWEST     20
 AVERAGE    51

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        70      1951
 MINIMUM TEMPERATURE (F)   28        -2      1985


SUNRISE AND SUNSET
JANUARY 19 2018.......SUNRISE   723 AM EST   SUNSET   515 PM EST
JANUARY 20 2018.......SUNRISE   723 AM EST   SUNSET   516 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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