Climatological Report (Daily)
Issued by NWS Sterling, VA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS41 KLWX 212123
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
423 PM EST TUE FEB 21 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR FEBRUARY 21 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         57    225 PM  70    1997  48      9       56
  MINIMUM         35    613 AM   7    1972  27      8       44
                                      1968
  AVERAGE         46                        37      9       50

PRECIPITATION (IN)
  TODAY            0.00          0.93 2015   0.10  -0.10     0.08
  MONTH TO DATE    0.25                      2.07  -1.82     2.65
  SINCE DEC 1      5.34                      7.71  -2.37    10.88
  SINCE JAN 1      2.98                      4.75  -1.77     7.12

SNOWFALL (IN)
  TODAY            0.0           8.9  2015   0.2   -0.2
  MONTH TO DATE    0.6                       6.1   -5.5
  SINCE JUL 1      1.6                      17.4  -15.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           19                        28     -9       15
  MONTH TO DATE  474                       621   -147      631
  SINCE DEC 1   2083                      2489   -406     2167
  SINCE JUL 1   2810                      3405   -595     2917

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        2
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           400 AM
 LOWEST     33           200 PM
 AVERAGE    52

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


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


SUNRISE AND SUNSET
FEBRUARY 21 2017......SUNRISE   653 AM EST   SUNSET   554 PM EST
FEBRUARY 22 2017......SUNRISE   652 AM EST   SUNSET   555 PM EST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.