535
CDUS41 KLWX 120531
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT FRI MAY 12 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 11 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 81 2:44 PM 90 1993 74 7 76
MINIMUM 45 5:24 AM 29 1966 52 -7 45
AVERAGE 63 63 0 61
PRECIPITATION (IN)
YESTERDAY 0.00 3.73 2008 0.15 -0.15 0.00
MONTH TO DATE 0.66 1.59 -0.93 3.50
SINCE MAR 1 5.53 8.56 -3.03 7.67
SINCE JAN 1 9.16 14.11 -4.95 13.87
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 2 4 -2 4
MONTH TO DATE 84 57 27 73
SINCE MAR 1 867 1024 -157 939
SINCE JUL 1 3821 4534 -713 4013
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 5 18 -13 5
SINCE MAR 1 50 40 10 19
SINCE JAN 1 50 40 10 19
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WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 2.1
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST 40 5:00 PM
AVERAGE 67
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 2018
MINIMUM TEMPERATURE (F) 52 34 1969
SUNRISE AND SUNSET
MAY 12 2023...........SUNRISE 6:00 AM EDT SUNSET 8:13 PM EDT
MAY 13 2023...........SUNRISE 5:59 AM EDT SUNSET 8:14 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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