512
CDUS41 KLWX 282131
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
531 PM EDT THU SEP 28 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 28 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 72 1:36 PM 86 1998 75 -3 70
2019
MINIMUM 51 2:06 AM 34 1989 53 -2 41
AVERAGE 62 64 -2 56
PRECIPITATION (IN)
TODAY 0.00 1.61 2004 0.14 -0.14 0.00
MONTH TO DATE 6.61 3.65 2.96 2.81
SINCE SEP 1 6.61 3.65 2.96 2.81
SINCE JAN 1 25.83 32.87 -7.04 30.31
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 3 4 -1 9
MONTH TO DATE 16 35 -19 26
SINCE SEP 1 16 35 -19 26
SINCE JUL 1 16 36 -20 26
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 211 147 64 176
SINCE SEP 1 211 147 64 176
SINCE JAN 1 1326 1203 123 1354
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 3:00 AM
LOWEST 55 12:00 PM
AVERAGE 72
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 2019
MINIMUM TEMPERATURE (F) 52 34 1978
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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