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 302123
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
523 PM EDT TUE SEP 30 2014


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 30 2014...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         73    312 PM  92    1986  74     -1       76
  MINIMUM         61    649 AM  35    1993  50     11       45
  AVERAGE         67                        62      5       61

PRECIPITATION (IN)
  TODAY            0.00          4.74 2010   0.14  -0.14     0.00
  MONTH TO DATE    0.85                      3.92  -3.07     1.61
  SINCE SEP 1      0.85                      3.92  -3.07     1.61
  SINCE JAN 1     37.06                     31.92   5.14    29.46

SNOWFALL (IN)
  TODAY            0.0          MM      MM   0.0    0.0
  MONTH TO DATE    0.0                       0.0    0.0
  SINCE JUL 1      0.0                       0.0    0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                         5     -5        4
  MONTH TO DATE   45                        55    -10       67
  SINCE SEP 1     45                        56    -11       67
  SINCE JUL 1     48                        58    -10       67

 COOLING
  TODAY            2                         2      0        0
  MONTH TO DATE  126                       141    -15      133
  SINCE SEP 1    126                       141    -15      133
  SINCE JAN 1    959                      1157   -198     1224
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     3.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     68           300 PM
 AVERAGE    84

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        90      1986
 MINIMUM TEMPERATURE (F)   50        31      1993


SUNRISE AND SUNSET
SEPTEMBER 30 2014.....SUNRISE   705 AM EDT   SUNSET   654 PM EDT
OCTOBER  1 2014.......SUNRISE   706 AM EDT   SUNSET   652 PM EDT


-  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.