790 CDUS41 KLWX 010523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1222 AM EST SAT FEB 1 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 31 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 44 228 PM 66 2012 44 0 22 MINIMUM 28 722 AM -7 1965 24 4 -2 AVERAGE 36 34 2 10 PRECIPITATION (IN) YESTERDAY T 0.68 1985 0.10 -0.10 0.00 MONTH TO DATE 3.25 2.68 0.57 3.96 SINCE DEC 1 6.22 5.64 0.58 9.72 SINCE JAN 1 3.25 2.68 0.57 3.96 SNOWFALL (IN) YESTERDAY MM 4.7 1985 0.3 MM MONTH TO DATE 2.3 7.3 -5.0 SINCE JUL 1 2.9 11.3 -8.4 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 29 31 -2 55 MONTH TO DATE 804 987 -183 1001 SINCE DEC 1 1604 1868 -264 1805 SINCE JUL 1 2467 2784 -317 2763 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 9 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 2.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 89 1000 PM LOWEST 49 100 PM AVERAGE 69 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 75 2002 MINIMUM TEMPERATURE (F) 24 2 1965 SUNRISE AND SUNSET FEBRUARY 1 2020......SUNRISE 716 AM EST SUNSET 531 PM EST FEBRUARY 2 2020......SUNRISE 716 AM EST SUNSET 532 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$