374 CDUS41 KLWX 170536 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 136 AM EDT MON APR 17 2017 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 16 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1962 TO 2017 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 86 238 PM 91 2002 67 19 71 MINIMUM 63 627 AM 28 1981 42 21 34 AVERAGE 75 55 20 53 PRECIPITATION (IN) YESTERDAY T 2.43 1993 0.11 -0.11 0.00 MONTH TO DATE 1.64 1.88 -0.24 1.19 SINCE MAR 1 5.76 5.26 0.50 2.64 SINCE JAN 1 9.20 10.68 -1.48 10.90 SNOWFALL (IN) YESTERDAY 0.0 T 1988 0.1 -0.1 MONTH TO DATE T 0.3 -0.3 SINCE JUL 1 7.3 22.0 -14.7 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 11 -11 12 MONTH TO DATE 123 212 -89 257 SINCE MAR 1 763 859 -96 703 SINCE JUL 1 3656 4449 -793 3794 COOLING YESTERDAY 10 1 9 0 MONTH TO DATE 23 4 19 8 SINCE MAR 1 25 7 18 13 SINCE JAN 1 25 7 18 13 .................................................................. WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 9.2 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 78 1200 AM LOWEST 31 200 PM AVERAGE 55 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 93 2002 MINIMUM TEMPERATURE (F) 43 27 1983 SUNRISE AND SUNSET APRIL 17 2017.........SUNRISE 630 AM EDT SUNSET 749 PM EDT APRIL 18 2017.........SUNRISE 629 AM EDT SUNSET 750 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$