National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-08-10 06:06 UTC
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320
CDUS41 KLWX 100606
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
206 AM EDT THU AUG 10 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 9 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 351 PM 97 2001 87 -3 78
1980
MINIMUM 55 529 AM 47 1989 65 -10 61
AVERAGE 70 76 -6 70
PRECIPITATION (IN)
YESTERDAY 0.00 2.28 1969 0.12 -0.12 T
MONTH TO DATE 0.86 1.11 -0.25 0.02
SINCE JUN 1 10.94 8.76 2.18 9.39
SINCE JAN 1 30.03 25.58 4.45 27.06
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 6 15 -9 3
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 5 11 -6 5
MONTH TO DATE 78 100 -22 104
SINCE JUN 1 737 700 37 816
SINCE JAN 1 874 792 82 914
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 3.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 36 100 PM
AVERAGE 65
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 2009
MINIMUM TEMPERATURE (F) 65 51 1999
SUNRISE AND SUNSET
AUGUST 10 2017........SUNRISE 619 AM EDT SUNSET 811 PM EDT
AUGUST 11 2017........SUNRISE 620 AM EDT SUNSET 809 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$