158
CDUS41 KLWX 252131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
531 PM EDT SUN OCT 25 2009
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 25 2009
VALID TODAY AS OF 0500 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 63 359 PM 77 1963 64 -1 65
MINIMUM 48 703 AM 27 1969 39 9 46
AVERAGE 56 52 4 56
PRECIPITATION (IN)
TODAY 0.00 3.39 1971 0.11 -0.11 1.10
MONTH TO DATE 4.03 2.71 1.32 1.29
SINCE SEP 1 5.86 6.53 -0.67 8.47
SINCE JAN 1 37.26 34.76 2.50 39.35
SNOWFALL (IN)
TODAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 9 13 -4 9
MONTH TO DATE 226 238 -12 199
SINCE SEP 1 245 298 -53 223
SINCE JUL 1 245 303 -58 223
COOLING
TODAY 0 0 0 0
MONTH TO DATE 8 15 -7 17
SINCE SEP 1 137 147 -10 177
SINCE JAN 1 1259 1072 187 1171
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 600 AM
LOWEST 36 300 PM
AVERAGE 51
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 82 1978
MINIMUM TEMPERATURE (F) 39 26 1988
1987
1972
SUNRISE AND SUNSET
OCTOBER 25 2009.......SUNRISE 730 AM EDT SUNSET 617 PM EDT
OCTOBER 26 2009.......SUNRISE 731 AM EDT SUNSET 616 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page