575
CDUS41 KLWX 190519
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
119 AM EDT SAT MAY 19 2012
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 18 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 75 401 PM 91 1987 76 -1 72
MINIMUM 45 408 AM 33 1973 52 -7 58
AVERAGE 60 64 -4 65
PRECIPITATION (IN)
YESTERDAY 0.00 3.13 1988 0.15 -0.15 0.77
MONTH TO DATE 1.76 2.57 -0.81 2.76
SINCE MAR 1 5.10 9.42 -4.32 13.04
SINCE JAN 1 9.19 14.84 -5.65 17.12
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 5 4 1 0
MONTH TO DATE 32 96 -64 69
SINCE MAR 1 707 1078 -371 975
SINCE JUL 1 3761 4668 -907 4654
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 43 27 16 18
SINCE MAR 1 71 47 24 63
SINCE JAN 1 71 47 24 63
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.6
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 86 200 AM
LOWEST 29 300 PM
AVERAGE 58
......................................................
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 2012...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 20 2012...........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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