916 CDUS41 KLWX 140521 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1221 AM EST WED DEC 14 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 13 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 44 3:23 PM 73 2015 47 -3 55 MINIMUM 23 11:59 PM 7 1988 29 -6 22 AVERAGE 34 38 -4 39 PRECIPITATION (IN) YESTERDAY 0.00 1.47 1996 0.11 -0.11 0.00 MONTH TO DATE 0.40 1.48 -1.08 0.05 SINCE DEC 1 0.40 1.48 -1.08 0.05 SINCE JAN 1 36.21 41.42 -5.21 34.55 SNOWFALL (IN) YESTERDAY 0.0 8.8 1966 0.1 -0.1 0.0 MONTH TO DATE 0.0 1.0 -1.0 0.0 SINCE DEC 1 0.0 1.0 -1.0 0.0 SINCE JUL 1 T 1.3 -1.3 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 31 27 4 26 MONTH TO DATE 314 330 -16 270 SINCE DEC 1 314 330 -16 270 SINCE JUL 1 1148 1230 -82 996 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 13 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (30) AVERAGE WIND SPEED 5.6 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 74 11:00 PM LOWEST 36 2:00 PM AVERAGE 55 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 47 69 2015 MINIMUM TEMPERATURE (F) 29 3 1989 SUNRISE AND SUNSET DECEMBER 14 2022......SUNRISE 7:21 AM EST SUNSET 4:48 PM EST DECEMBER 15 2022......SUNRISE 7:21 AM EST SUNSET 4:49 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$