584
CDUS41 KLWX 170530
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT TUE SEP 17 2024
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 16 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 77 2:24 PM 97 1991 79 -2 84
MINIMUM 60 6:30 AM 37 1984 58 2 49
AVERAGE 69 69 0 67
PRECIPITATION (IN)
YESTERDAY T 2.05 1999 0.15 -0.15 0.00
MONTH TO DATE T 2.04 -2.04 3.50
SINCE SEP 1 T 2.04 -2.04 3.50
SINCE JAN 1 25.78 31.26 -5.48 22.72
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 0
MONTH TO DATE 11 7 4 0
SINCE SEP 1 11 7 4 0
SINCE JUL 1 13 8 5 0
COOLING
YESTERDAY 4 5 -1 2
MONTH TO DATE 53 107 -54 199
SINCE SEP 1 53 107 -54 199
SINCE JAN 1 1467 1163 304 1314
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 6:00 AM
LOWEST 50 2:00 PM
AVERAGE 68
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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 2024.....SUNRISE 6:53 AM EDT SUNSET 7:14 PM EDT
SEPTEMBER 18 2024.....SUNRISE 6:54 AM EDT SUNSET 7:12 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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