788
CDUS41 KLWX 312123
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT THU MAY 31 2012
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 31 2012
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2012
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 328 PM 94 2011 79 3 94
1991
MINIMUM 64 314 AM 37 1984 56 8 68
AVERAGE 73 68 5 81
PRECIPITATION (IN)
TODAY 0.00 1.15 1979 0.15 -0.15 0.00
MONTH TO DATE 5.38 4.55 0.83 3.28
SINCE MAR 1 8.72 11.40 -2.68 13.56
SINCE JAN 1 12.81 16.82 -4.01 17.64
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 3.7 22.0 -18.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 32 131 -99 74
SINCE MAR 1 707 1112 -405 980
SINCE JUL 1 3761 4702 -941 4659
COOLING
TODAY 8 4 4 16
MONTH TO DATE 146 72 74 121
SINCE MAR 1 174 92 82 166
SINCE JAN 1 174 92 82 166
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 6.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 100 AM
LOWEST 35 1200 PM
AVERAGE 61
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 2011
MINIMUM TEMPERATURE (F) 57 39 1984
SUNRISE AND SUNSET
MAY 31 2012...........SUNRISE 546 AM EDT SUNSET 829 PM EDT
JUNE 1 2012..........SUNRISE 546 AM EDT SUNSET 830 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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