Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 310528
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1226 AM EST SAT JAN 31 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 30 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    418 AM  72    2013  43     -4       31
  MINIMUM         19   1159 PM   2    1965  24     -5        4
  AVERAGE         29                        34     -5       18

PRECIPITATION (IN)
  YESTERDAY        T             2.00 2013   0.09  -0.09     0.00
  MONTH TO DATE    3.26                      2.58   0.68     2.69
  SINCE DEC 1      6.52                      5.54   0.98     8.27
  SINCE JAN 1      3.26                      2.58   0.68     2.69

SNOWFALL (IN)
  YESTERDAY        T             6.3  2000   0.3   -0.3
  MONTH TO DATE    8.7                       7.0    1.7
  SINCE JUL 1     10.3                      11.0   -0.7
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       36                        31      5       47
  MONTH TO DATE 1048                       956     92     1133
  SINCE DEC 1   1865                      1838     27     1926
  SINCE JUL 1   2859                      2754    105     2890

 COOLING
  YESTERDAY        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    37   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    47   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    18.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           500 AM
 LOWEST     40           100 PM
 AVERAGE    55

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   44        66      2012
 MINIMUM TEMPERATURE (F)   24        -7      1965


SUNRISE AND SUNSET
JANUARY 31 2015.......SUNRISE   717 AM EST   SUNSET   530 PM EST
FEBRUARY  1 2015......SUNRISE   716 AM EST   SUNSET   531 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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