000 CDUS41 KLWX 200531 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1230 AM EST TUE DEC 20 2005 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 19 2005... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2005 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 39 120 PM 63 1967 45 -6 46 MINIMUM 24 1159 PM -2 1989 25 -1 17 AVERAGE 32 35 -3 32 PRECIPITATION (IN) YESTERDAY 0.00 0.86 1995 0.10 -0.10 0.01 MONTH TO DATE 2.14 1.90 0.24 1.70 SINCE DEC 1 2.14 1.90 0.24 1.70 SINCE JAN 1 43.77 40.63 3.14 37.40 SNOWFALL (IN) YESTERDAY 0.0 3.1 2000 0.1 -0.1 T MONTH TO DATE 5.7 1.0 4.7 T SINCE DEC 1 5.7 1.0 4.7 T SINCE JUL 1 6.0 1.9 4.1 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 33 29 4 33 MONTH TO DATE 635 513 122 452 SINCE DEC 1 635 513 122 452 SINCE JUL 1 1374 1490 -116 1257 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1373 1075 298 1201 .................................................................. WIND (MPH) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 5.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 200 AM LOWEST 38 400 PM AVERAGE 65 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 64 1988 MINIMUM TEMPERATURE (F) 25 8 1991 SUNRISE AND SUNSET DECEMBER 20 2005......SUNRISE 724 AM EST SUNSET 451 PM EST DECEMBER 21 2005......SUNRISE 725 AM EST SUNSET 451 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$