Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 220535
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1230 AM EST THU FEB 22 2018


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 21 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         80R   437 PM  70    1997  48     32       57
  MINIMUM         59    724 AM   7    1972  27     32       35
                                      1968
  AVERAGE         70                        37     33       46

PRECIPITATION (IN)
  YESTERDAY        0.02          0.93 2015   0.10  -0.08     0.00
  MONTH TO DATE    3.87                      2.07   1.80     0.25
  SINCE DEC 1      6.43                      7.71  -1.28     5.34
  SINCE JAN 1      5.66                      4.75   0.91     2.98

SNOWFALL (IN)
  YESTERDAY        0.0           8.9  2015   0.2   -0.2
  MONTH TO DATE    1.6                       6.1   -4.5
  SINCE JUL 1      6.6                      17.4  -10.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        28    -28       19
  MONTH TO DATE  506                       621   -115      474
  SINCE DEC 1   2432                      2489    -57     2083
  SINCE JUL 1   3226                      3405   -179     2810

 COOLING
  YESTERDAY        5                         0      5        0
  MONTH TO DATE    5                         0      5        0
  SINCE DEC 1      5                         0      5        0
  SINCE JAN 1      5                         0      5        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    11.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           800 AM
 LOWEST     51           400 PM
 AVERAGE    76

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        71      1991
 MINIMUM TEMPERATURE (F)   27         4      1968


SUNRISE AND SUNSET
FEBRUARY 22 2018......SUNRISE   652 AM EST   SUNSET   555 PM EST
FEBRUARY 23 2018......SUNRISE   651 AM EST   SUNSET   556 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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