526
CDUS41 KLWX 200521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
120 AM EDT SUN MAY 20 2012
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 19 2012
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)
YESTERDAY
MAXIMUM 81 415 PM 92 1997 76 5 72
1996
MINIMUM 48 348 AM 36 2002 52 -4 54
AVERAGE 65 64 1 63
PRECIPITATION (IN)
YESTERDAY 0.00 1.18 1988 0.15 -0.15 0.14
MONTH TO DATE 1.76 2.72 -0.96 2.90
SINCE MAR 1 5.10 9.57 -4.47 13.18
SINCE JAN 1 9.19 14.99 -5.80 17.26
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 4 -4 2
MONTH TO DATE 32 100 -68 71
SINCE MAR 1 707 1082 -375 977
SINCE JUL 1 3761 4672 -911 4656
COOLING
YESTERDAY 0 3 -3 0
MONTH TO DATE 43 30 13 18
SINCE MAR 1 71 50 21 63
SINCE JAN 1 71 50 21 63
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 2.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 33 100 PM
AVERAGE 63
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1996
MINIMUM TEMPERATURE (F) 52 36 2002
SUNRISE AND SUNSET
MAY 20 2012...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 21 2012...........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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