National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-28 05:31 UTC
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979
CDUS41 KLWX 280532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT SUN MAY 28 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 27 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 72 1202 PM 92 2010 78 -6 89
1965
MINIMUM 55 427 AM 37 1972 55 0 67
AVERAGE 64 66 -2 78
PRECIPITATION (IN)
YESTERDAY 0.01 1.45 1968 0.15 -0.14 0.00
MONTH TO DATE 6.62 3.94 2.68 6.07
SINCE MAR 1 13.78 10.79 2.99 9.40
SINCE JAN 1 17.22 16.21 1.01 17.66
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 1 2 -1 0
MONTH TO DATE 140 123 17 164
SINCE MAR 1 959 1105 -146 945
SINCE JUL 1 3852 4695 -843 4036
COOLING
YESTERDAY 0 4 -4 13
MONTH TO DATE 50 56 -6 31
SINCE MAR 1 119 76 43 54
SINCE JAN 1 119 76 43 54
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 2.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 68 1000 AM
AVERAGE 81
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 90 2012
1991
MINIMUM TEMPERATURE (F) 55 37 1994
SUNRISE AND SUNSET
MAY 28 2017...........SUNRISE 548 AM EDT SUNSET 827 PM EDT
MAY 29 2017...........SUNRISE 547 AM EDT SUNSET 827 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$