Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 010521
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1220 AM EST SUN FEB 1 2015


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 31 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         34    421 PM  66    2012  44    -10       48
  MINIMUM         16    728 AM  -7    1965  24     -8       23
  AVERAGE         25                        34     -9       36

PRECIPITATION (IN)
  YESTERDAY        0.00          0.68 1985   0.10  -0.10     0.00
  MONTH TO DATE    3.26                      2.68   0.58     2.69
  SINCE DEC 1      6.52                      5.64   0.88     8.27
  SINCE JAN 1      3.26                      2.68   0.58     2.69

SNOWFALL (IN)
  YESTERDAY        0.0           4.7  1985   0.3   -0.3
  MONTH TO DATE    8.7                       7.3    1.4
  SINCE JUL 1     10.3                      11.3   -1.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       40                        31      9       29
  MONTH TO DATE 1088                       987    101     1162
  SINCE DEC 1   1905                      1868     37     1955
  SINCE JUL 1   2899                      2784    115     2919

 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    28   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    NW (310)
  AVERAGE WIND SPEED     9.3


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    73          1000 PM
 LOWEST     35           300 PM
 AVERAGE    54

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   44        75      2002
 MINIMUM TEMPERATURE (F)   24         2      1965


SUNRISE AND SUNSET
FEBRUARY  1 2015......SUNRISE   716 AM EST   SUNSET   531 PM EST
FEBRUARY  2 2015......SUNRISE   715 AM EST   SUNSET   532 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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