805
CDUS41 KLWX 202136
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
535 PM EDT MON MAY 20 2013
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 20 2013
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2013
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 81 359 PM 93 1996 76 5 82
MINIMUM 66 656 AM 36 2002 52 14 51
AVERAGE 74 64 10 67
PRECIPITATION (IN)
TODAY 0.00 1.86 2005 0.15 -0.15 0.01
MONTH TO DATE 2.34 2.87 -0.53 1.77
SINCE MAR 1 7.80 9.72 -1.92 5.11
SINCE JAN 1 13.13 15.14 -2.01 9.20
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 12.7 22.0 -9.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 112 103 9 32
SINCE MAR 1 1162 1085 77 707
SINCE JUL 1 4526 4675 -149 3761
COOLING
TODAY 9 3 6 2
MONTH TO DATE 37 33 4 45
SINCE MAR 1 67 53 14 73
SINCE JAN 1 67 53 14 73
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 62 300 PM
AVERAGE 78
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1996
MINIMUM TEMPERATURE (F) 53 33 1992
SUNRISE AND SUNSET
MAY 20 2013...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 21 2013...........SUNRISE 552 AM EDT SUNSET 821 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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