National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-07-16 05:23 UTC
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874
CDUS41 KLWX 160523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT SUN JUL 16 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 15 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 87 439 PM 98 1995 88 -1 91
MINIMUM 69 1155 PM 53 1987 66 3 70
1981
AVERAGE 78 77 1 81
PRECIPITATION (IN)
YESTERDAY 0.00 1.01 2005 0.12 -0.12 0.00
MONTH TO DATE 3.89 1.78 2.11 0.94
SINCE JUN 1 5.17 5.76 -0.59 7.29
SINCE JAN 1 24.26 22.58 1.68 24.96
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 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 13 12 1 16
MONTH TO DATE 206 175 31 192
SINCE JUN 1 462 412 50 445
SINCE JAN 1 599 504 95 543
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 40 300 PM
AVERAGE 67
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 104 1988
MINIMUM TEMPERATURE (F) 66 57 1991
1967
1966
SUNRISE AND SUNSET
JULY 16 2017..........SUNRISE 558 AM EDT SUNSET 834 PM EDT
JULY 17 2017..........SUNRISE 558 AM EDT SUNSET 833 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$