Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 200523
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 AM EST TUE FEB 20 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 19 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         47   1159 PM  71    1997  47      0       69
  MINIMUM         36   1241 AM   6    2015  27      9       50
  AVERAGE         42                        37      5       60

PRECIPITATION (IN)
  YESTERDAY        0.04          1.34 1972   0.09  -0.05      T
  MONTH TO DATE    3.85                      1.87   1.98     0.25
  SINCE DEC 1      6.41                      7.51  -1.10     5.34
  SINCE JAN 1      5.64                      4.55   1.09     2.98

SNOWFALL (IN)
  YESTERDAY        0.0          13.8  1979   0.3   -0.3
  MONTH TO DATE    1.6                       5.7   -4.1
  SINCE JUL 1      6.6                      17.0  -10.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        28     -5        5
  MONTH TO DATE  503                       565    -62      443
  SINCE DEC 1   2429                      2433     -4     2052
  SINCE JUL 1   3223                      3349   -126     2779

 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    13   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     S (160)
  AVERAGE WIND SPEED     7.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 PM
 LOWEST     76          1200 AM
 AVERAGE    88

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        70      1971
 MINIMUM TEMPERATURE (F)   27        -2      1979


SUNRISE AND SUNSET
FEBRUARY 20 2018......SUNRISE   655 AM EST   SUNSET   553 PM EST
FEBRUARY 21 2018......SUNRISE   653 AM EST   SUNSET   554 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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