399 CDUS41 KLWX 070525 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1224 AM EST TUE JAN 7 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 6 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1960 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 53 225 PM 71 2007 42 11 54 MINIMUM 27 1147 PM 4 1999 24 3 29 1977 AVERAGE 40 33 7 42 PRECIPITATION (IN) YESTERDAY 0.00 0.94 1995 0.08 -0.08 0.00 MONTH TO DATE 0.68 0.48 0.20 0.14 SINCE DEC 1 3.65 3.44 0.21 5.90 SINCE JAN 1 0.68 0.48 0.20 0.14 SNOWFALL (IN) YESTERDAY 0.0 4.2 2015 0.2 -0.2 MONTH TO DATE 0.0 1.0 -1.0 SINCE JUL 1 0.6 5.0 -4.4 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 25 32 -7 23 MONTH TO DATE 140 192 -52 132 SINCE DEC 1 940 1074 -134 936 SINCE JUL 1 1803 1990 -187 1894 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 0 0 0 0 .................................................................. WIND (MPH) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 7.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 85 1200 AM LOWEST 28 300 PM AVERAGE 57 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 42 71 2008 MINIMUM TEMPERATURE (F) 24 -1 2018 SUNRISE AND SUNSET JANUARY 7 2020.......SUNRISE 729 AM EST SUNSET 503 PM EST JANUARY 8 2020.......SUNRISE 729 AM EST SUNSET 504 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$