571 CDUS41 KLWX 230530 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1230 AM EST FRI DEC 23 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 22 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 53 7:25 PM 71 2013 45 8 49 MINIMUM 29 1:03 AM 2 1989 28 1 28 AVERAGE 41 36 5 39 PRECIPITATION (IN) YESTERDAY 2.14R 1.12 2011 0.10 2.04 0.00 MONTH TO DATE 4.48 2.43 2.05 0.05 SINCE DEC 1 4.48 2.43 2.05 0.05 SINCE JAN 1 40.29 42.37 -2.08 34.55 SNOWFALL (IN) YESTERDAY T 3.3 1962 0.1 -0.1 0.0 MONTH TO DATE T 1.8 -1.8 0.0 SINCE DEC 1 T 1.8 -1.8 0.0 SINCE JUL 1 T 2.1 -2.1 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 24 29 -5 26 MONTH TO DATE 575 580 -5 460 SINCE DEC 1 575 580 -5 460 SINCE JUL 1 1409 1480 -71 1186 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 14 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60) AVERAGE WIND SPEED 5.9 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 8:00 PM LOWEST 72 12:00 AM AVERAGE 85 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 68 1990 MINIMUM TEMPERATURE (F) 28 4 1989 SUNRISE AND SUNSET DECEMBER 23 2022......SUNRISE 7:26 AM EST SUNSET 4:52 PM EST DECEMBER 24 2022......SUNRISE 7:26 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. $$