National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-11 05:30 UTC
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739
CDUS41 KLWX 110532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT TUE APR 11 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 10 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 81 345 PM 89 2013 65 16 53
MINIMUM 41 515 AM 19 1985 41 0 25
AVERAGE 61 53 8 39
PRECIPITATION (IN)
YESTERDAY 0.00 0.84 1983 0.12 -0.12 0.00
MONTH TO DATE 1.63 1.21 0.42 1.16
SINCE MAR 1 5.75 4.59 1.16 2.61
SINCE JAN 1 9.19 10.01 -0.82 10.87
SNOWFALL (IN)
YESTERDAY 0.0 T 1996 0.0 0.0
1973
MONTH TO DATE T 0.2 -0.2
SINCE JUL 1 7.3 21.9 -14.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 13 -9 26
MONTH TO DATE 109 142 -33 181
SINCE MAR 1 749 789 -40 627
SINCE JUL 1 3642 4379 -737 3718
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 3 0 3 8
SINCE MAR 1 5 3 2 13
SINCE JAN 1 5 3 2 13
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 9.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 500 AM
LOWEST 23 300 PM
AVERAGE 51
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 87 1977
MINIMUM TEMPERATURE (F) 41 25 1971
1970
SUNRISE AND SUNSET
APRIL 11 2017.........SUNRISE 639 AM EDT SUNSET 743 PM EDT
APRIL 12 2017.........SUNRISE 637 AM EDT SUNSET 744 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$