Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
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268 CDUS41 KLWX 180526 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 126 AM EDT WED SEP 18 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 17 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2024 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 79 12:29 PM 97 1991 79 0 74 MINIMUM 66 4:11 AM 35 1986 58 8 54 AVERAGE 73 68 5 64 PRECIPITATION (IN) YESTERDAY 0.08 1.71 2004 0.14 -0.06 0.11 MONTH TO DATE 0.08 2.18 -2.10 3.61 SINCE SEP 1 0.08 2.18 -2.10 3.61 SINCE JAN 1 25.86 31.40 -5.54 22.83 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 T SINCE SEP 1 0.0 0.0 0.0 T SINCE JUL 1 0.0 0.0 0.0 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 1 -1 1 MONTH TO DATE 11 8 3 1 SINCE SEP 1 11 8 3 1 SINCE JUL 1 13 9 4 1 COOLING YESTERDAY 8 5 3 0 MONTH TO DATE 61 112 -51 199 SINCE SEP 1 61 112 -51 199 SINCE JAN 1 1475 1168 307 1314 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60) HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110) AVERAGE WIND SPEED 8.2 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 93 5:00 PM LOWEST 64 11:00 AM AVERAGE 79 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 91 1978 MINIMUM TEMPERATURE (F) 57 37 1990 SUNRISE AND SUNSET SEPTEMBER 18 2024.....SUNRISE 6:54 AM EDT SUNSET 7:12 PM EDT SEPTEMBER 19 2024.....SUNRISE 6:55 AM EDT SUNSET 7:11 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$