Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 232125
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
425 PM EST MON JAN 23 2017


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 23 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         50    107 AM  72    1967  43      7       29
  MINIMUM         38    359 PM  -4    1978  24     14       21
                                      1970
  AVERAGE         44                        33     11       25

PRECIPITATION (IN)
  TODAY            0.65          1.88 2016   0.09   0.56     1.88
  MONTH TO DATE    2.55                      1.95   0.60     4.45
  SINCE DEC 1      4.91                      4.91   0.00     8.21
  SINCE JAN 1      2.55                      1.95   0.60     4.45

SNOWFALL (IN)
  TODAY            0.0          22.1  2016   0.2   -0.2
  MONTH TO DATE    0.7                       5.0   -4.3
  SINCE JUL 1      0.7                       9.0   -8.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           21                        32    -11       40
  MONTH TO DATE  589                       736   -147      763
  SINCE DEC 1   1412                      1618   -206     1266
  SINCE JUL 1   2139                      2534   -395     2016

 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    33   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    45   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED    19.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           200 PM
 LOWEST     82          1200 PM
 AVERAGE    87

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        73      1967
 MINIMUM TEMPERATURE (F)   24        -2      1987


SUNRISE AND SUNSET
JANUARY 23 2017.......SUNRISE   723 AM EST   SUNSET   521 PM EST
JANUARY 24 2017.......SUNRISE   722 AM EST   SUNSET   522 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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