National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-05-30 05:23 UTC
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645
CDUS41 KLWX 300523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT TUE MAY 30 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 29 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 82 339 PM 97 1969 79 3 84
MINIMUM 63 600 AM 40 1997 56 7 64
AVERAGE 73 67 6 74
PRECIPITATION (IN)
YESTERDAY T 1.00 1984 0.16 -0.16 0.01
MONTH TO DATE 6.79 4.25 2.54 6.08
SINCE MAR 1 13.95 11.10 2.85 9.41
SINCE JAN 1 17.39 16.52 0.87 17.67
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 0 2 -2 0
MONTH TO DATE 140 127 13 164
SINCE MAR 1 959 1109 -150 945
SINCE JUL 1 3852 4699 -847 4036
COOLING
YESTERDAY 8 4 4 9
MONTH TO DATE 59 64 -5 54
SINCE MAR 1 128 84 44 77
SINCE JAN 1 128 84 44 77
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1200 AM
LOWEST 37 200 PM
AVERAGE 65
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 2006
1991
1987
MINIMUM TEMPERATURE (F) 56 38 1996
SUNRISE AND SUNSET
MAY 30 2017...........SUNRISE 547 AM EDT SUNSET 828 PM EDT
MAY 31 2017...........SUNRISE 546 AM EDT SUNSET 829 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$