476 CDUS41 KLWX 130533 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 133 AM EDT FRI OCT 13 2023 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 12 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 77 3:21 PM 83 1995 69 8 74 2010 MINIMUM 45 6:39 AM 25 1964 47 -2 42 AVERAGE 61 58 3 58 PRECIPITATION (IN) YESTERDAY 0.00 0.78 1990 0.11 -0.11 0.00 MONTH TO DATE 0.18 1.47 -1.29 1.41 SINCE SEP 1 6.83 5.41 1.42 4.69 SINCE JAN 1 26.05 34.63 -8.58 32.19 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 T 0.0 0.0 0.0 SINCE JUL 1 T 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 4 8 -4 7 MONTH TO DATE 51 74 -23 111 SINCE SEP 1 67 119 -52 150 SINCE JUL 1 67 120 -53 150 COOLING YESTERDAY 0 1 -1 0 MONTH TO DATE 32 17 15 0 SINCE SEP 1 248 169 79 176 SINCE JAN 1 1363 1225 138 1354 ................................................................... WIND (MPH) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SE (120) HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 2.6 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 4:00 AM LOWEST 30 3:00 PM AVERAGE 60 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 84 1989 MINIMUM TEMPERATURE (F) 46 30 1987 1988 2012 SUNRISE AND SUNSET OCTOBER 13 2023.......SUNRISE 7:17 AM EDT SUNSET 6:34 PM EDT OCTOBER 14 2023.......SUNRISE 7:18 AM EDT SUNSET 6:33 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$