830 CDUS41 KLWX 100523 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 123 AM EDT MON JUL 10 2023 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JULY 9 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2023 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 87 12:37 PM 99 1988 88 -1 72 1993 MINIMUM 70 10:38 PM 48 1984 67 3 69 AVERAGE 79 77 2 71 PRECIPITATION (IN) YESTERDAY 0.71 2.23 1970 0.13 0.58 1.48 MONTH TO DATE 1.83 1.22 0.61 2.77 SINCE JUN 1 4.13 5.52 -1.39 5.52 SINCE JAN 1 14.11 22.76 -8.65 22.74 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 0.0 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 13 -8 0 SINCE JUL 1 0 0 0 0 COOLING YESTERDAY 14 12 2 6 MONTH TO DATE 147 106 41 118 SINCE JUN 1 329 344 -15 355 SINCE JAN 1 403 450 -47 484 ................................................................... WIND (MPH) HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (300) HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 5.5 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM HEAVY RAIN RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 94 6:00 AM LOWEST 63 1:00 PM AVERAGE 79 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 99 1988 1993 MINIMUM TEMPERATURE (F) 67 53 1963 SUNRISE AND SUNSET JULY 10 2023..........SUNRISE 5:53 AM EDT SUNSET 8:37 PM EDT JULY 11 2023..........SUNRISE 5:54 AM EDT SUNSET 8:37 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$