738 CDUS41 KLWX 100527 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 127 AM EDT FRI JUL 10 2020 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 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 90 2:43 PM 99 1988 88 2 86 1993 MINIMUM 69 5:34 AM 48 1984 66 3 60 AVERAGE 80 77 3 73 PRECIPITATION (IN) YESTERDAY 0.00 2.23 1970 0.12 -0.12 0.00 MONTH TO DATE 1.30 1.08 0.22 1.28 SINCE JUN 1 6.51 5.06 1.45 3.72 SINCE JAN 1 23.03 21.88 1.15 23.60 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 JUN 1 0.0 0.0 0.0 T SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 5 15 -10 9 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 15 12 3 8 MONTH TO DATE 139 103 36 117 SINCE JUN 1 412 340 72 373 SINCE JAN 1 489 432 57 552 ................................................................... WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (120) AVERAGE WIND SPEED 4.7 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 AM LOWEST 47 4:00 PM AVERAGE 70 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 99 1988 1993 MINIMUM TEMPERATURE (F) 66 53 1963 SUNRISE AND SUNSET JULY 10 2020..........SUNRISE 5:54 AM EDT SUNSET 8:37 PM EDT JULY 11 2020..........SUNRISE 5:54 AM EDT SUNSET 8:36 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$