741
CDUS41 KLWX 170523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT SUN SEP 17 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 16 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 84 3:07 PM 97 1991 79 5 82
MINIMUM 49 5:47 AM 37 1984 58 -9 52
AVERAGE 67 69 -2 67
PRECIPITATION (IN)
YESTERDAY 0.00 2.05 1999 0.15 -0.15 0.00
MONTH TO DATE 3.50 2.04 1.46 2.78
SINCE SEP 1 3.50 2.04 1.46 2.78
SINCE JAN 1 22.72 31.26 -8.54 30.28
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE T 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 0 1 -1 0
MONTH TO DATE 0 7 -7 0
SINCE SEP 1 0 7 -7 0
SINCE JUL 1 0 8 -8 0
COOLING
YESTERDAY 2 5 -3 2
MONTH TO DATE 199 107 92 141
SINCE SEP 1 199 107 92 141
SINCE JAN 1 1314 1163 151 1319
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST MM
AVERAGE MM
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1991
MINIMUM TEMPERATURE (F) 58 35 1986
SUNRISE AND SUNSET
SEPTEMBER 17 2023.....SUNRISE 6:53 AM EDT SUNSET 7:15 PM EDT
SEPTEMBER 18 2023.....SUNRISE 6:54 AM EDT SUNSET 7:14 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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