161
CDUS41 KLWX 170521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
121 AM EDT WED MAY 17 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 16 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 80 12:47 PM 90 1998 75 5 81
MINIMUM 54 5:18 AM 35 2000 53 1 57
AVERAGE 67 64 3 69
PRECIPITATION (IN)
YESTERDAY T 1.97 2014 0.15 -0.15 0.42
MONTH TO DATE 0.75 2.37 -1.62 4.14
SINCE MAR 1 5.62 9.34 -3.72 8.31
SINCE JAN 1 9.25 14.89 -5.64 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 0 4 -4 0
MONTH TO DATE 84 77 7 74
SINCE MAR 1 867 1044 -177 940
SINCE JUL 1 3821 4554 -733 4014
COOLING
YESTERDAY 2 3 -1 4
MONTH TO DATE 16 29 -13 25
SINCE MAR 1 61 51 10 39
SINCE JAN 1 61 51 10 39
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 42 12:00 PM
AVERAGE 66
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1960
MINIMUM TEMPERATURE (F) 53 30 1984
SUNRISE AND SUNSET
MAY 17 2023...........SUNRISE 5:56 AM EDT SUNSET 8:17 PM EDT
MAY 18 2023...........SUNRISE 5:55 AM EDT SUNSET 8:18 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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