642
CDUS41 KLWX 152126
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
526 PM EDT FRI SEP 15 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 15 2023
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 78 3:57 PM 95 1993 80 -2 82
1998
MINIMUM 58 6:07 AM 38 1985 58 0 56
AVERAGE 68 69 -1 69
PRECIPITATION (IN)
TODAY 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)
TODAY 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
TODAY 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
TODAY 3 5 -2 4
MONTH TO DATE 199 102 97 139
SINCE SEP 1 199 102 97 139
SINCE JAN 1 1314 1158 156 1317
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 11.4
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 2:00 AM
LOWEST 30 4:00 PM
AVERAGE 49
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1991
MINIMUM TEMPERATURE (F) 58 37 1984
SUNRISE AND SUNSET
SEPTEMBER 15 2023.....SUNRISE 6:51 AM EDT SUNSET 7:18 PM EDT
SEPTEMBER 16 2023.....SUNRISE 6:52 AM EDT SUNSET 7:17 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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