342
CDUS41 KLWX 172124
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
524 PM EDT MON APR 17 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 17 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 68 2:19 PM 93 2002 68 0 56
MINIMUM 40 1:16 AM 27 1983 44 -4 43
AVERAGE 54 56 -2 50
PRECIPITATION (IN)
TODAY 0.00 1.44 2000 0.11 -0.11 0.01
MONTH TO DATE 0.36 1.87 -1.51 1.68
SINCE MAR 1 1.93 5.37 -3.44 3.60
SINCE JAN 1 5.56 10.92 -5.36 9.80
SNOWFALL (IN)
TODAY 0.0 T 1983 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE MAR 1 T 4.0 -4.0 3.5
SINCE JUL 1 0.4 21.0 -20.6 15.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 11 10 1 15
MONTH TO DATE 115 216 -101 201
SINCE MAR 1 685 863 -178 724
SINCE JUL 1 3639 4373 -734 3798
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 36 6 30 8
SINCE MAR 1 37 8 29 11
SINCE JAN 1 37 8 29 11
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 3:00 AM
LOWEST 30 2:00 PM
AVERAGE 57
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 90 1976
MINIMUM TEMPERATURE (F) 44 29 2018
SUNRISE AND SUNSET
APRIL 17 2023.........SUNRISE 6:31 AM EDT SUNSET 7:49 PM EDT
APRIL 18 2023.........SUNRISE 6:29 AM EDT SUNSET 7:50 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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