259 CDUS41 KLWX 100522 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 122 AM EDT SAT OCT 10 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 9 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 71 3:08 PM 94 2007 70 1 72 MINIMUM 41 6:30 AM 26 2001 46 -5 54 AVERAGE 56 58 -2 63 PRECIPITATION (IN) YESTERDAY 0.00 2.53 1976 0.11 -0.11 0.05 MONTH TO DATE 0.15 0.95 -0.80 0.10 SINCE SEP 1 2.43 4.87 -2.44 0.51 SINCE JAN 1 36.65 32.87 3.78 30.35 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 SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 9 8 1 2 MONTH TO DATE 66 58 8 14 SINCE SEP 1 127 114 13 19 SINCE JUL 1 127 116 11 19 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 1 11 -10 48 SINCE SEP 1 136 152 -16 286 SINCE JAN 1 1388 1168 220 1521 ................................................................... WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 5.8 SKY COVER AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 96 4:00 AM LOWEST 39 12:00 PM AVERAGE 68 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 70 87 2017 MINIMUM TEMPERATURE (F) 46 31 1972 1978 SUNRISE AND SUNSET OCTOBER 10 2020.......SUNRISE 7:15 AM EDT SUNSET 6:38 PM EDT OCTOBER 11 2020.......SUNRISE 7:16 AM EDT SUNSET 6:36 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$