845 CDUS41 KLWX 210524 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1222 AM EST TUE NOV 21 2017 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 20 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1960 TO 2017 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 51 331 PM 79 1985 56 -5 45 MINIMUM 35 632 AM 18 1980 34 1 34 AVERAGE 43 45 -2 40 PRECIPITATION (IN) YESTERDAY 0.00 0.75 1983 0.11 -0.11 0.00 MONTH TO DATE 1.96 2.26 -0.30 0.25 SINCE SEP 1 6.86 9.43 -2.57 3.45 SINCE JAN 1 39.86 37.43 2.43 31.45 SNOWFALL (IN) YESTERDAY 0.0 T 2000 0.0 0.0 1987 1969 MONTH TO DATE 0.0 0.1 -0.1 SINCE JUL 1 T 0.1 -0.1 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 22 20 2 25 MONTH TO DATE 364 338 26 300 SINCE SEP 1 584 692 -108 511 SINCE JUL 1 585 694 -109 511 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 1 0 1 2 SINCE SEP 1 220 160 60 296 SINCE JAN 1 1281 1176 105 1559 .................................................................. WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 10.1 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 70 1100 PM LOWEST 30 300 PM AVERAGE 50 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 55 76 2007 MINIMUM TEMPERATURE (F) 34 16 1969 SUNRISE AND SUNSET NOVEMBER 21 2017......SUNRISE 659 AM EST SUNSET 452 PM EST NOVEMBER 22 2017......SUNRISE 700 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. $$