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
808
CDUS41 KLWX 100522
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1222 AM EST SAT DEC 10 2016


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 9 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         37    221 PM  72    1978  48    -11       46
  MINIMUM         26   1105 PM  11    1989  29     -3       29
  AVERAGE         32                        38     -6       38

PRECIPITATION (IN)
  YESTERDAY        0.00          1.12 1973   0.11  -0.11     0.01
  MONTH TO DATE    1.36                      0.98   0.38     0.80
  SINCE DEC 1      1.36                      0.98   0.38     0.80
  SINCE JAN 1     34.33                     39.56  -5.23    36.42

SNOWFALL (IN)
  YESTERDAY        0.0           2.5  2005   0.1   -0.1
  MONTH TO DATE    T                         0.8   -0.8
  SINCE JUL 1      T                         1.3   -1.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       33                        27      6       27
  MONTH TO DATE  209                       230    -21      205
  SINCE DEC 1    209                       230    -21      205
  SINCE JUL 1    936                      1146   -210      955

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1559                      1178    381     1324
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    14.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    58           900 PM
 LOWEST     40           100 PM
 AVERAGE    49

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        70      1966
 MINIMUM TEMPERATURE (F)   28         4      1989


SUNRISE AND SUNSET
DECEMBER 10 2016......SUNRISE   718 AM EST   SUNSET   448 PM EST
DECEMBER 11 2016......SUNRISE   719 AM EST   SUNSET   448 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.