National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-08-30 05:37 UTC
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411
CDUS41 KLWX 300537
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
137 AM EDT SUN AUG 30 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 29 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 86 4:41 PM 98 1991 85 1 83
MINIMUM 72 6:45 AM 38 1982 62 10 56
AVERAGE 79 74 5 70
PRECIPITATION (IN)
YESTERDAY 0.20 1.17 1963 0.10 0.10 0.00
MONTH TO DATE 7.09 3.32 3.77 4.79
SINCE JUN 1 17.15 10.97 6.18 9.96
SINCE JAN 1 33.67 27.79 5.88 29.84
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 JUN 1 0.0 0.0 0.0 T
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 5 15 -10 9
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 14 9 5 5
MONTH TO DATE 389 305 84 339
SINCE JUN 1 1163 905 258 1039
SINCE JAN 1 1240 997 243 1218
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 10:00 AM
LOWEST 58 7:00 PM
AVERAGE 78
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 1991
MINIMUM TEMPERATURE (F) 62 41 1986
SUNRISE AND SUNSET
AUGUST 30 2020........SUNRISE 6:37 AM EDT SUNSET 7:42 PM EDT
AUGUST 31 2020........SUNRISE 6:38 AM EDT SUNSET 7:41 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$