963
CDUS41 KLWX 160529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT SAT SEP 16 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 15 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 78 4:17 PM 95 1993 80 -2 82
1998
MINIMUM 54 11:38 PM 38 1985 58 -4 56
AVERAGE 66 69 -3 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.06 1981 0.14 -0.14 0.00
MONTH TO DATE 3.50 1.89 1.61 2.78
SINCE SEP 1 3.50 1.89 1.61 2.78
SINCE JAN 1 22.72 31.11 -8.39 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 6 -6 0
SINCE SEP 1 0 6 -6 0
SINCE JUL 1 0 7 -7 0
COOLING
YESTERDAY 1 5 -4 4
MONTH TO DATE 197 102 95 139
SINCE SEP 1 197 102 95 139
SINCE JAN 1 1312 1158 154 1317
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 9.9
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 11:00 PM
LOWEST 30 4:00 PM
AVERAGE 54
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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 37 1984
SUNRISE AND SUNSET
SEPTEMBER 16 2023.....SUNRISE 6:52 AM EDT SUNSET 7:17 PM EDT
SEPTEMBER 17 2023.....SUNRISE 6:53 AM EDT SUNSET 7:15 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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