National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-07-30 05:23 UTC
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145
CDUS41 KLWX 300524
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT SUN JUL 30 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 29 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 77 616 PM 103 2011 88 -11 90
MINIMUM 63 1026 PM 52 2014 66 -3 72
AVERAGE 70 77 -7 81
PRECIPITATION (IN)
YESTERDAY 0.16 0.92 2001 0.12 0.04 0.34
MONTH TO DATE 8.80 3.42 5.38 2.70
SINCE JUN 1 10.08 7.40 2.68 9.05
SINCE JAN 1 29.17 24.22 4.95 26.72
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE T 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 12 -7 16
MONTH TO DATE 390 343 47 428
SINCE JUN 1 646 580 66 681
SINCE JAN 1 783 672 111 779
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 11.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 AM
LOWEST 41 700 PM
AVERAGE 69
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 1988
MINIMUM TEMPERATURE (F) 66 48 2014
SUNRISE AND SUNSET
JULY 30 2017..........SUNRISE 609 AM EDT SUNSET 823 PM EDT
JULY 31 2017..........SUNRISE 610 AM EDT SUNSET 822 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$