Climatological Report (Daily)
Issued by NWS Sterling, VA

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CDUS41 KLWX 290528
CLIIAD


CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
127 AM EDT THU SEP 29 2016


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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 28 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2016


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         68   1159 PM  86    1998  75     -7       80
  MINIMUM         62   1230 AM  34    1989  51     11       65
  AVERAGE         65                        63      2       73

PRECIPITATION (IN)
  YESTERDAY        0.82          1.61 2004   0.13   0.69     0.01
  MONTH TO DATE    1.52                      3.65  -2.13     0.72
  SINCE SEP 1      1.52                      3.65  -2.13     0.72
  SINCE JAN 1     29.52                     31.65  -2.13    28.00

SNOWFALL (IN)
  YESTERDAY        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
  YESTERDAY        0                         4     -4        0
  MONTH TO DATE    3                        45    -42        6
  SINCE SEP 1      3                        45    -42        6
  SINCE JUL 1      3                        47    -44        6

 COOLING
  YESTERDAY        0                         2     -2        8
  MONTH TO DATE  255                       137    118      186
  SINCE SEP 1    255                       137    118      186
  SINCE JAN 1   1518                      1153    365     1297
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     E (90)
  AVERAGE WIND SPEED     8.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     73           900 AM
 AVERAGE    87

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


THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        85      1986
                                             1973
 MINIMUM TEMPERATURE (F)   50        34      1978


SUNRISE AND SUNSET
SEPTEMBER 29 2016.....SUNRISE   704 AM EDT   SUNSET   655 PM EDT
SEPTEMBER 30 2016.....SUNRISE   705 AM EDT   SUNSET   653 PM EDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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