388 CDUS41 KLWX 210537 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 134 AM EDT WED APR 21 2004 ................................... ...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 20 2004... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1962 TO 2004 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 80 500 PM 88 1985 67 13 70 MINIMUM 61 1159 PM 28 1974 41 20 37 AVERAGE 71 54 17 54 PRECIPITATION (IN) YESTERDAY 0.08 0.46 1964 0.11 -0.03 0.00 MONTH TO DATE 3.60 2.09 1.51 2.24 SINCE MAR 1 5.65 5.64 0.01 5.95 SINCE JAN 1 8.99 11.46 -2.47 14.91 SNOWFALL (IN) YESTERDAY 0.0 T 1983 0.0 0.0 0.0 MONTH TO DATE 0.0 0.4 -0.4 T SINCE MAR 1 T 3.8 -3.8 1.9 SINCE JUL 1 17.4 21.2 -3.8 50.1 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 11 -11 11 MONTH TO DATE 288 270 18 271 SINCE MAR 1 862 940 -78 912 SINCE JUL 1 4587 4673 -86 4956 COOLING YESTERDAY 6 1 5 0 MONTH TO DATE 22 1 21 8 SINCE MAR 1 22 5 17 8 SINCE JAN 1 22 5 17 8 .................................................................. WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 6.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 1100 PM LOWEST 36 M500 PM AVERAGE 63 .......................................................... THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 68 89 1985 MINIMUM TEMPERATURE (F) 42 29 1983 SUNRISE AND SUNSET APRIL 21 2004.........SUNRISE 624 AM EDT SUNSET 753 PM EDT APRIL 22 2004.........SUNRISE 623 AM EDT SUNSET 754 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$