166 CDUS41 KLWX 280525 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1225 AM EST WED DEC 28 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 27 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 3:26 PM 73 1971 44 0 44 MINIMUM 22 7:47 AM 1 1989 27 -5 33 AVERAGE 33 36 -3 39 PRECIPITATION (IN) YESTERDAY 0.00 1.04 1964 0.10 -0.10 T MONTH TO DATE 4.70 2.93 1.77 0.19 SINCE DEC 1 4.70 2.93 1.77 0.19 SINCE JAN 1 40.51 42.87 -2.36 34.69 SNOWFALL (IN) YESTERDAY 0.0 4.4 1990 0.1 -0.1 0.0 MONTH TO DATE T 2.3 -2.3 0.0 SINCE DEC 1 T 2.3 -2.3 0.0 SINCE JUL 1 T 2.6 -2.6 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 32 30 2 26 MONTH TO DATE 780 726 54 560 SINCE DEC 1 780 726 54 560 SINCE JUL 1 1614 1626 -12 1286 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 SE (150) HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION SE (150) AVERAGE WIND SPEED 2.1 SKY COVER AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 74 4:00 AM LOWEST 29 3:00 PM AVERAGE 52 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 44 73 1984 MINIMUM TEMPERATURE (F) 27 8 1966 SUNRISE AND SUNSET DECEMBER 28 2022......SUNRISE 7:28 AM EST SUNSET 4:55 PM EST DECEMBER 29 2022......SUNRISE 7:28 AM EST SUNSET 4:56 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$