National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-09-09 05:22 UTC
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628
CDUS41 KLWX 090522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
122 AM EDT WED SEP 09 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 8 2020...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 2:24 PM 96 2016 82 3 82
MINIMUM 58 5:43 AM 43 1984 60 -2 56
AVERAGE 72 71 1 69
PRECIPITATION (IN)
YESTERDAY 0.00 3.56 1987 0.12 -0.12 0.00
MONTH TO DATE 0.28 0.94 -0.66 0.32
SINCE SEP 1 0.28 0.94 -0.66 0.32
SINCE JAN 1 34.50 28.94 5.56 30.16
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 SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 1 -1 0
SINCE SEP 1 0 1 -1 0
SINCE JUL 1 0 3 -3 0
COOLING
YESTERDAY 7 6 1 4
MONTH TO DATE 69 59 10 73
SINCE SEP 1 69 59 10 73
SINCE JAN 1 1321 1075 246 1308
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 3.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 57 2:00 PM
AVERAGE 77
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2016
MINIMUM TEMPERATURE (F) 59 40 1986
SUNRISE AND SUNSET
SEPTEMBER 9 2020.....SUNRISE 6:46 AM EDT SUNSET 7:27 PM EDT
SEPTEMBER 10 2020.....SUNRISE 6:47 AM EDT SUNSET 7:25 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$