738
CDUS41 KLWX 100521
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
121 AM EDT WED MAY 10 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR MAY 9 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 68 12:11 AM 91 1963 74 -6 71
MINIMUM 49 11:13 PM 30 1976 51 -2 37
AVERAGE 59 62 -3 54
PRECIPITATION (IN)
YESTERDAY 0.14 0.93 1974 0.15 -0.01 0.00
MONTH TO DATE 0.66 1.29 -0.63 3.50
SINCE MAR 1 5.53 8.26 -2.73 7.67
SINCE JAN 1 9.16 13.81 -4.65 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 6 5 1 11
MONTH TO DATE 75 49 26 64
SINCE MAR 1 858 1016 -158 930
SINCE JUL 1 3812 4526 -714 4004
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 5 14 -9 5
SINCE MAR 1 50 36 14 19
SINCE JAN 1 50 36 14 19
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WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 5.5
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 4:00 AM
LOWEST 45 6:00 PM
AVERAGE 69
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THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 90 1963
MINIMUM TEMPERATURE (F) 51 31 1966
1983
SUNRISE AND SUNSET
MAY 10 2023...........SUNRISE 6:02 AM EDT SUNSET 8:11 PM EDT
MAY 11 2023...........SUNRISE 6:01 AM EDT SUNSET 8:12 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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