348
CDUS41 KLWX 180522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT THU MAY 18 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 17 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 75 3:26 PM 93 1960 75 0 83
MINIMUM 53 11:43 PM 30 1984 53 0 52
AVERAGE 64 64 0 68
PRECIPITATION (IN)
YESTERDAY 0.00 1.22 1970 0.16 -0.16 0.00
MONTH TO DATE 0.75 2.53 -1.78 4.14
SINCE MAR 1 5.62 9.50 -3.88 8.31
SINCE JAN 1 9.25 15.05 -5.80 14.51
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 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
YESTERDAY 1 4 -3 0
MONTH TO DATE 85 81 4 74
SINCE MAR 1 868 1048 -180 940
SINCE JUL 1 3822 4558 -736 4014
COOLING
YESTERDAY 0 3 -3 3
MONTH TO DATE 16 32 -16 28
SINCE MAR 1 61 54 7 42
SINCE JAN 1 61 54 7 42
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 9.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 12:00 AM
LOWEST 28 5:00 PM
AVERAGE 51
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 91 1987
MINIMUM TEMPERATURE (F) 54 33 1973
SUNRISE AND SUNSET
MAY 18 2023...........SUNRISE 5:55 AM EDT SUNSET 8:18 PM EDT
MAY 19 2023...........SUNRISE 5:54 AM EDT SUNSET 8:19 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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