140
CDUS41 KLWX 190538
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
137 AM EDT SUN MAY 19 2013
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 18 2013
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)
YESTERDAY
MAXIMUM 68 1212 AM 91 1987 76 -8 75
MINIMUM 59 1159 PM 33 1973 52 7 45
AVERAGE 64 64 0 60
PRECIPITATION (IN)
YESTERDAY 0.09 3.13 1988 0.15 -0.06 0.00
MONTH TO DATE 2.30 2.57 -0.27 1.76
SINCE MAR 1 7.76 9.42 -1.66 5.10
SINCE JAN 1 13.09 14.84 -1.75 9.19
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 1 4 -3 5
MONTH TO DATE 112 96 16 32
SINCE MAR 1 1162 1078 84 707
SINCE JUL 1 4526 4668 -142 3761
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 26 27 -1 43
SINCE MAR 1 56 47 9 71
SINCE JAN 1 56 47 9 71
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 600 PM
LOWEST 58 1200 AM
AVERAGE 78
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1997
1996
MINIMUM TEMPERATURE (F) 52 36 2002
SUNRISE AND SUNSET
MAY 19 2013...........SUNRISE 554 AM EDT SUNSET 819 PM EDT
MAY 20 2013...........SUNRISE 553 AM EDT SUNSET 820 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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