CDUS41 KLWX 200539 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1239 AM EST MON JAN 20 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 19 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 43 1042 AM 65 1972 42 1 37 MINIMUM 25 1159 PM -6 1994 24 1 30 AVERAGE 34 33 1 34 PRECIPITATION (IN) YESTERDAY 0.04 1.36 1987 0.09 -0.05 0.84 MONTH TO DATE 1.71 1.59 0.12 2.13 SINCE DEC 1 4.68 4.55 0.13 7.89 SINCE JAN 1 1.71 1.59 0.12 2.13 SNOWFALL (IN) YESTERDAY T 4.3 1978 0.3 -0.3 MONTH TO DATE 2.3 4.0 -1.7 SINCE JUL 1 2.9 8.0 -5.1 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 31 32 -1 31 MONTH TO DATE 448 608 -160 556 SINCE DEC 1 1248 1490 -242 1360 SINCE JUL 1 2111 2406 -295 2318 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 33 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 14.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 92 1200 AM LOWEST 44 300 PM AVERAGE 68 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 42 63 2006 MINIMUM TEMPERATURE (F) 24 -7 1985 SUNRISE AND SUNSET JANUARY 20 2020.......SUNRISE 725 AM EST SUNSET 517 PM EST JANUARY 21 2020.......SUNRISE 724 AM EST SUNSET 518 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$