165 CDUS41 KLWX 030525 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1225 AM EST THU DEC 03 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 2 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 48 3:35 PM 75 1970 51 -3 43 MINIMUM 34 10:53 PM 0 1967 31 3 37 AVERAGE 41 41 0 40 PRECIPITATION (IN) YESTERDAY 0.00 1.42 1986 0.11 -0.11 0.01 MONTH TO DATE 0.01 0.22 -0.21 0.40 SINCE DEC 1 0.01 0.22 -0.21 0.40 SINCE JAN 1 43.66 38.80 4.86 38.24 SNOWFALL (IN) YESTERDAY 0.0 T 1983 0.1 -0.1 T 1987 2019 MONTH TO DATE 0.0 0.2 -0.2 T SINCE DEC 1 0.0 0.2 -0.2 T SINCE JUL 1 0.0 0.7 -0.7 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 24 24 0 25 MONTH TO DATE 46 48 -2 49 SINCE DEC 1 46 48 -2 49 SINCE JUL 1 713 964 -251 912 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1406 1178 228 1524 ................................................................... WIND (MPH) HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 11.4 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 66 7:00 AM LOWEST 31 4:00 PM AVERAGE 49 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 50 74 1998 MINIMUM TEMPERATURE (F) 30 7 1976 SUNRISE AND SUNSET DECEMBER 3 2020......SUNRISE 7:12 AM EST SUNSET 4:48 PM EST DECEMBER 4 2020......SUNRISE 7:13 AM EST SUNSET 4:47 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$