Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 180525
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST SUN FEB 18 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 17 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         42   1226 PM  75    1976  47     -5       52
  MINIMUM         29    651 AM  -4    1979  26      3       19
  AVERAGE         36                        36      0       36

PRECIPITATION (IN)
  YESTERDAY        0.44          1.36 1998   0.10   0.34     0.00
  MONTH TO DATE    3.81                      1.68   2.13     0.25
  SINCE DEC 1      6.37                      7.32  -0.95     5.34
  SINCE JAN 1      5.60                      4.36   1.24     2.98

SNOWFALL (IN)
  YESTERDAY        1.5           4.1  1967   0.3    1.2
  MONTH TO DATE    1.6                       5.1   -3.5
  SINCE JUL 1      6.6                      16.4   -9.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       29                        29      0       29
  MONTH TO DATE  456                       509    -53      422
  SINCE DEC 1   2382                      2377      5     2031
  SINCE JUL 1   3176                      3293   -117     2758

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


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  SNOW
  LIGHT SNOW
  SLEET
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 PM
 LOWEST     49          1200 PM
 AVERAGE    75

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        75      2011
 MINIMUM TEMPERATURE (F)   26       -14      1979


SUNRISE AND SUNSET
FEBRUARY 18 2018......SUNRISE   657 AM EST   SUNSET   551 PM EST
FEBRUARY 19 2018......SUNRISE   656 AM EST   SUNSET   552 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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