National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-10 05:23 UTC
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447
CDUS41 KLWX 100524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT SUN SEP 10 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 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 71 347 PM 98 2016 82 -11 98
MINIMUM 50 617 AM 40 1986 59 -9 74
AVERAGE 61 71 -10 86
PRECIPITATION (IN)
YESTERDAY 0.00 1.34 1999 0.13 -0.13 0.00
MONTH TO DATE 1.63 1.07 0.56 0.17
SINCE SEP 1 1.63 1.07 0.56 0.17
SINCE JAN 1 34.63 29.07 5.56 28.17
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 4 1 3 0
MONTH TO DATE 21 2 19 0
SINCE SEP 1 21 2 19 0
SINCE JUL 1 22 4 18 0
COOLING
YESTERDAY 0 6 -6 21
MONTH TO DATE 19 65 -46 105
SINCE SEP 1 19 65 -46 105
SINCE JAN 1 1080 1081 -1 1368
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 47 200 PM
AVERAGE 74
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 99 1983
MINIMUM TEMPERATURE (F) 59 43 1981
SUNRISE AND SUNSET
SEPTEMBER 10 2017.....SUNRISE 647 AM EDT SUNSET 726 PM EDT
SEPTEMBER 11 2017.....SUNRISE 648 AM EDT SUNSET 724 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$