677 CDUS41 KLWX 280527 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1227 AM EST FRI JAN 28 2022 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 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 36 3:20 PM 71 1974 43 -7 44 MINIMUM 10 7:10 AM -9 1987 25 -15 33 AVERAGE 23 34 -11 39 PRECIPITATION (IN) YESTERDAY 0.00 0.95 1976 0.09 -0.09 0.00 MONTH TO DATE 3.77 2.56 1.21 1.57 SINCE DEC 1 4.23 5.86 -1.63 7.38 SINCE JAN 1 3.77 2.56 1.21 1.57 SNOWFALL (IN) YESTERDAY 0.0 2.0 2009 0.3 -0.3 0.0 MONTH TO DATE 10.4 5.8 4.6 0.2 SINCE DEC 1 10.4 8.6 1.8 2.6 SINCE JUL 1 10.4 8.9 1.5 2.6 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 42 31 11 26 MONTH TO DATE 879 833 46 761 SINCE DEC 1 1494 1678 -184 1563 SINCE JUL 1 2220 2578 -358 2230 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 0 0 0 0 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (210) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 5.1 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 80 6:00 AM LOWEST 38 2:00 PM AVERAGE 59 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 43 68 2002 MINIMUM TEMPERATURE (F) 25 -17 1987 SUNRISE AND SUNSET JANUARY 28 2022.......SUNRISE 7:19 AM EST SUNSET 5:27 PM EST JANUARY 29 2022.......SUNRISE 7:19 AM EST SUNSET 5:28 PM EST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$