233
CDUS41 KLWX 092129
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
429 PM EST MON NOV 9 2009
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 9 2009
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2009
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 130 PM 78 1994 59 14 59
MINIMUM 39 652 AM 19 1976 35 4 38
1971
1967
AVERAGE 56 47 9 49
PRECIPITATION (IN)
TODAY 0.00 0.16 1968 0.11 -0.11 0.00
MONTH TO DATE 0.65 0.99 -0.34 0.15
SINCE SEP 1 8.18 8.18 0.00 8.64
SINCE JAN 1 39.58 36.41 3.17 39.52
SNOWFALL (IN)
TODAY 0.0 0.0 0.0
MONTH TO DATE 0.0 T 0.0
SINCE JUL 1 0.0 0.1 -0.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 9 18 -9 16
MONTH TO DATE 141 148 -7 76
SINCE SEP 1 428 531 -103 414
SINCE JUL 1 428 536 -108 414
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 137 147 -10 177
SINCE JAN 1 1259 1072 187 1171
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 2.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 600 AM
LOWEST 40 1200 PM
AVERAGE 66
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 75 1985
MINIMUM TEMPERATURE (F) 35 21 2003
SUNRISE AND SUNSET
NOVEMBER 9 2009......SUNRISE 646 AM EST SUNSET 501 PM EST
NOVEMBER 10 2009......SUNRISE 647 AM EST SUNSET 500 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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