National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-07-29 05:26 UTC
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605
CDUS41 KLWX 290526
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 AM EDT SAT JUL 29 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 28 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 78 144 PM 99 1993 88 -10 92
MINIMUM 69 1138 PM 47 1977 66 3 74
AVERAGE 74 77 -3 83
PRECIPITATION (IN)
YESTERDAY 1.46 1.65 2000 0.12 1.34 0.99
MONTH TO DATE 8.64 3.30 5.34 2.36
SINCE JUN 1 9.92 7.28 2.64 8.71
SINCE JAN 1 29.01 24.10 4.91 26.38
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 9 12 -3 18
MONTH TO DATE 385 331 54 412
SINCE JUN 1 641 568 73 665
SINCE JAN 1 778 660 118 763
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 82 800 AM
AVERAGE 90
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 103 2011
MINIMUM TEMPERATURE (F) 66 52 2014
SUNRISE AND SUNSET
JULY 29 2017..........SUNRISE 608 AM EDT SUNSET 824 PM EDT
JULY 30 2017..........SUNRISE 609 AM EDT SUNSET 823 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$