Climatological Report (Daily)
Issued by NWS Sterling, VA

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862
CDUS41 KLWX 170525
CLIDCA


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1225 AM EST TUE JAN 17 2017


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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JANUARY 16 2017...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         46    425 PM  73    1953  43      3       53
  MINIMUM         38    754 AM   2    1893  28     10       38
  AVERAGE         42                        36      6       46

PRECIPITATION (IN)
  YESTERDAY        0.01          1.00 1909   0.09  -0.08     0.01
  MONTH TO DATE    1.61                      1.44   0.17     1.12
  SINCE DEC 1      4.22                      4.49  -0.27     5.96
  SINCE JAN 1      1.61                      1.44   0.17     1.12

SNOWFALL (IN)
  YESTERDAY       MM             2.2  1965   0.2   MM
                                      1959
  MONTH TO DATE    0.4                       2.4   -2.0
  SINCE JUL 1      0.4                       5.2   -4.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        29     -6       19
  MONTH TO DATE  409                       464    -55      423
  SINCE DEC 1   1119                      1250   -131      844
  SINCE JUL 1   1606                      1945   -339     1379

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


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           200 AM
 LOWEST     49           400 PM
 AVERAGE    60

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


THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        74      1943
 MINIMUM TEMPERATURE (F)   28        -5      1982


SUNRISE AND SUNSET
JANUARY 17 2017.......SUNRISE   724 AM EST   SUNSET   513 PM EST
JANUARY 18 2017.......SUNRISE   724 AM EST   SUNSET   514 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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