354 CDUS41 KLWX 230522 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 122 AM EDT SAT MAY 23 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 22 2020... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1960 TO 2020 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 75 4:49 PM 88 1975 77 -2 71 1984 2004 MINIMUM 59 4:40 AM 31 2002 53 6 48 AVERAGE 67 65 2 60 PRECIPITATION (IN) YESTERDAY 0.40 2.07 2001 0.15 0.25 0.00 MONTH TO DATE 2.02 3.18 -1.16 4.04 SINCE MAR 1 9.57 10.03 -0.46 11.41 SINCE JAN 1 16.14 15.45 0.69 18.87 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE MAR 1 T 3.1 -3.1 1.6 SINCE JUL 1 2.9 22.0 -19.1 26.5 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 3 -3 5 MONTH TO DATE 175 109 66 60 SINCE MAR 1 1005 1091 -86 942 SINCE JUL 1 4149 4681 -532 4447 COOLING YESTERDAY 2 3 -1 0 MONTH TO DATE 21 39 -18 66 SINCE MAR 1 24 59 -35 88 SINCE JAN 1 24 59 -35 88 ................................................................... WIND (MPH) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 5.4 SKY COVER AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 11:00 AM LOWEST 71 4:00 PM AVERAGE 82 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 77 92 1964 MINIMUM TEMPERATURE (F) 53 39 1971 1990 2002 SUNRISE AND SUNSET MAY 23 2020...........SUNRISE 5:51 AM EDT SUNSET 8:23 PM EDT MAY 24 2020...........SUNRISE 5:50 AM EDT SUNSET 8:24 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$