000 CDUS41 KLWX 230521 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1219 AM EST SUN DEC 23 2007 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR DECEMBER 22 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 45 1157 PM 67 1984 44 1 56 MINIMUM 39 159 AM 2 1989 25 14 44 AVERAGE 42 34 8 50 PRECIPITATION (IN) YESTERDAY 0.00 0.94 1983 0.10 -0.10 0.87 MONTH TO DATE 2.05 2.20 -0.15 1.03 SINCE DEC 1 2.05 2.20 -0.15 1.03 SINCE JAN 1 27.08 40.93 -13.85 45.27 SNOWFALL (IN) YESTERDAY 0.0 0.1 -0.1 MONTH TO DATE 2.5 1.3 1.2 SINCE JUL 1 2.5 2.2 0.3 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 23 30 -7 15 MONTH TO DATE 604 603 1 497 SINCE DEC 1 604 603 1 497 SINCE JUL 1 1333 1580 -247 1358 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1593 1075 518 1256 .................................................................. WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 4.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 82 1100 PM LOWEST 70 1000 AM AVERAGE 76 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 68 1990 MINIMUM TEMPERATURE (F) 24 4 1989 SUNRISE AND SUNSET DECEMBER 23 2007......SUNRISE 726 AM EST SUNSET 452 PM EST DECEMBER 24 2007......SUNRISE 726 AM EST SUNSET 452 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$