000 CDUS41 KLWX 010538 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 138 AM EDT TUE MAY 1 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 30 2007... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2007 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 86R 150 PM 86 1974 70 16 68 MINIMUM 49 152 AM 29 1977 45 4 38 AVERAGE 68 58 10 53 PRECIPITATION (IN) YESTERDAY 0.00 0.72 2005 0.12 -0.12 0.00 MONTH TO DATE 3.38 3.22 0.16 4.86 SINCE MAR 1 6.31 6.77 -0.46 4.93 SINCE JAN 1 10.96 12.59 -1.63 9.71 SNOWFALL (IN) YESTERDAY 0.0 0.0 0.0 MONTH TO DATE 0.2 0.4 -0.2 SINCE AUG 1 14.7 21.2 -6.5 SINCE JUL 1 14.7 21.2 -6.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 8 -8 12 MONTH TO DATE 392 362 30 232 SINCE MAR 1 972 1032 -60 821 SINCE JUL 1 4348 4792 -444 4049 COOLING YESTERDAY 3 1 2 0 MONTH TO DATE 15 11 4 9 SINCE MAR 1 23 15 8 12 SINCE JAN 1 23 15 8 12 .................................................................. WIND (MPH) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 10.2 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 80 200 AM LOWEST 28 1100 AM AVERAGE 54 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 71 86 1986 1985 MINIMUM TEMPERATURE (F) 45 33 1996 SUNRISE AND SUNSET MAY 1 2007...........SUNRISE 612 AM EDT SUNSET 802 PM EDT MAY 2 2007...........SUNRISE 611 AM EDT SUNSET 803 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$