720 CDUS41 KLWX 120532 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1232 AM EST MON DEC 12 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 11 2022... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2022 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 49 3:37 PM 71 1979 48 1 68 MINIMUM 33 10:47 PM 3 1968 30 3 46 AVERAGE 41 39 2 57 PRECIPITATION (IN) YESTERDAY T 1.34 2008 0.12 -0.12 0.05 MONTH TO DATE 0.40 1.26 -0.86 0.05 SINCE DEC 1 0.40 1.26 -0.86 0.05 SINCE JAN 1 36.21 41.20 -4.99 34.55 SNOWFALL (IN) YESTERDAY 0.0 0.5 1962 0.1 -0.1 0.0 MONTH TO DATE 0.0 0.8 -0.8 0.0 SINCE DEC 1 0.0 0.8 -0.8 0.0 SINCE JUL 1 T 1.1 -1.1 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 24 26 -2 8 MONTH TO DATE 258 276 -18 219 SINCE DEC 1 258 276 -18 219 SINCE JUL 1 1092 1176 -84 945 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1376 1231 145 1480 ................................................................... WIND (MPH) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (350) AVERAGE WIND SPEED 3.8 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 96 10:00 PM LOWEST 70 12:00 AM AVERAGE 83 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 72 1979 MINIMUM TEMPERATURE (F) 30 9 1988 SUNRISE AND SUNSET DECEMBER 12 2022......SUNRISE 7:19 AM EST SUNSET 4:48 PM EST DECEMBER 13 2022......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$