Climatological Report (Daily)
Issued by NWS Sterling, VA

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924
CDUS41 KLWX 042122
CLIIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
422 PM EST WED DEC 04 2024

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 4 2024...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         40   3:59 PM  75    1998  50    -10       55
  MINIMUM         17   6:52 AM  10    1966  31    -14       37
  AVERAGE         29                        40    -11       46

PRECIPITATION (IN)
  TODAY            0.00          1.18 1993   0.11  -0.11     0.00
  MONTH TO DATE    T                         0.45  -0.45     0.69
  SINCE DEC 1      T                         0.45  -0.45     0.69
  SINCE JAN 1     31.03                     40.39  -9.36    29.72

SNOWFALL (IN)
  TODAY            0.0           T    2014   0.0    0.0      0.0
                                      2016
                                      2019
  MONTH TO DATE    T                         0.2   -0.2      0.0
  SINCE DEC 1      T                         0.2   -0.2      0.0
  SINCE JUL 1      T                         0.5   -0.5       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           36                        25     11       19
  MONTH TO DATE  137                        97     40       68
  SINCE DEC 1    137                        97     40       68
  SINCE JUL 1    805                       997   -192      839

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1586                      1231    355     1380
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     6.6


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           7:00 AM
 LOWEST     33           2:00 PM
 AVERAGE    58

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   49        77      2001
 MINIMUM TEMPERATURE (F)   31        12      1966


SUNRISE AND SUNSET
DECEMBER  4 2024......SUNRISE   7:13 AM EST   SUNSET   4:47 PM EST
DECEMBER  5 2024......SUNRISE   7:14 AM EST   SUNSET   4:47 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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