218 CDUS41 KLWX 220525 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1225 AM EST THU DEC 22 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 21 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 46 3:28 PM 70 2013 45 1 42 MINIMUM 19 6:57 AM 4 1989 28 -9 22 AVERAGE 33 37 -4 32 PRECIPITATION (IN) YESTERDAY 0.00 1.15 1973 0.10 -0.10 0.00 MONTH TO DATE 2.34 2.33 0.01 0.05 SINCE DEC 1 2.34 2.33 0.01 0.05 SINCE JAN 1 38.15 42.27 -4.12 34.55 SNOWFALL (IN) YESTERDAY 0.0 5.8 1962 0.1 -0.1 0.0 MONTH TO DATE 0.0 1.7 -1.7 0.0 SINCE DEC 1 0.0 1.7 -1.7 0.0 SINCE JUL 1 T 2.0 -2.0 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 32 28 4 33 MONTH TO DATE 551 551 0 434 SINCE DEC 1 551 551 0 434 SINCE JUL 1 1385 1451 -66 1160 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 7 HIGHEST WIND DIRECTION E (110) HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION SE (130) AVERAGE WIND SPEED 1.6 SKY COVER AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 88 5:00 AM LOWEST 40 2:00 PM AVERAGE 64 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 45 71 2013 MINIMUM TEMPERATURE (F) 28 2 1989 SUNRISE AND SUNSET DECEMBER 22 2022......SUNRISE 7:25 AM EST SUNSET 4:52 PM EST DECEMBER 23 2022......SUNRISE 7:26 AM EST SUNSET 4:52 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$