203
CDUS41 KLWX 280525
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
125 AM EDT THU SEP 28 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 27 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 72 2:44 PM 96 1998 75 -3 73
MINIMUM 54 11:20 PM 35 1984 53 1 51
AVERAGE 63 64 -1 62
PRECIPITATION (IN)
YESTERDAY 0.00 1.55 1985 0.14 -0.14 0.00
MONTH TO DATE 6.61 3.51 3.10 2.81
SINCE SEP 1 6.61 3.51 3.10 2.81
SINCE JAN 1 25.83 32.73 -6.90 30.31
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 2 3 -1 3
MONTH TO DATE 13 31 -18 17
SINCE SEP 1 13 31 -18 17
SINCE JUL 1 13 32 -19 17
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 211 145 66 176
SINCE SEP 1 211 145 66 176
SINCE JAN 1 1326 1201 125 1354
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 38 4:00 PM
AVERAGE 64
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 86 1998
2019
MINIMUM TEMPERATURE (F) 53 34 1989
SUNRISE AND SUNSET
SEPTEMBER 28 2023.....SUNRISE 7:03 AM EDT SUNSET 6:58 PM EDT
SEPTEMBER 29 2023.....SUNRISE 7:04 AM EDT SUNSET 6:56 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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