645 CDUS41 KLWX 240523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1223 AM EST SAT DEC 24 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 23 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 45 3:27 AM 68 1990 45 0 43 MINIMUM 10 11:59 PM 4 1989 28 -18 20 AVERAGE 28 36 -8 32 PRECIPITATION (IN) YESTERDAY 0.22 1.30 2004 0.11 0.11 0.00 MONTH TO DATE 4.70 2.54 2.16 0.05 SINCE DEC 1 4.70 2.54 2.16 0.05 SINCE JAN 1 40.51 42.48 -1.97 34.55 SNOWFALL (IN) YESTERDAY T 7.5 1963 0.1 -0.1 0.0 MONTH TO DATE T 1.9 -1.9 0.0 SINCE DEC 1 T 1.9 -1.9 0.0 SINCE JUL 1 T 2.2 -2.2 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 37 29 8 33 MONTH TO DATE 612 609 3 493 SINCE DEC 1 612 609 3 493 SINCE JUL 1 1446 1509 -63 1219 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 39 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 55 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 16.5 SKY COVER AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. RAIN LIGHT RAIN SLEET FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 1:00 AM LOWEST 36 2:00 PM AVERAGE 68 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 71 2015 MINIMUM TEMPERATURE (F) 28 1 1983 SUNRISE AND SUNSET DECEMBER 24 2022......SUNRISE 7:26 AM EST SUNSET 4:53 PM EST DECEMBER 25 2022......SUNRISE 7:27 AM EST SUNSET 4:53 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$