366
CDUS41 KLWX 200521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
121 AM EDT SAT MAY 20 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 19 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 77 2:27 PM 92 1996 76 1 84
1997
MINIMUM 47 3:36 AM 36 2002 54 -7 60
AVERAGE 62 65 -3 72
PRECIPITATION (IN)
YESTERDAY 0.00 1.18 1988 0.15 -0.15 0.06
MONTH TO DATE 0.75 2.83 -2.08 4.20
SINCE MAR 1 5.62 9.80 -4.18 8.37
SINCE JAN 1 9.25 15.35 -6.10 14.57
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 3 3 0 0
MONTH TO DATE 95 87 8 75
SINCE MAR 1 878 1054 -176 941
SINCE JUL 1 3832 4564 -732 4015
COOLING
YESTERDAY 0 3 -3 7
MONTH TO DATE 16 38 -22 35
SINCE MAR 1 61 60 1 49
SINCE JAN 1 61 60 1 49
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.6
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 4:00 AM
LOWEST 43 2:00 PM
AVERAGE 66
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1996
MINIMUM TEMPERATURE (F) 54 36 2002
SUNRISE AND SUNSET
MAY 20 2023...........SUNRISE 5:53 AM EDT SUNSET 8:20 PM EDT
MAY 21 2023...........SUNRISE 5:53 AM EDT SUNSET 8:21 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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