National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-10-22 05:29 UTC
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665
CDUS41 KLWX 220529
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
129 AM EDT SUN OCT 22 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR OCTOBER 21 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 221 PM 86 1979 67 10 76
MINIMUM 42 635 AM 22 1972 42 0 55
AVERAGE 60 54 6 66
PRECIPITATION (IN)
YESTERDAY 0.00 2.45 1995 0.11 -0.11 0.14
MONTH TO DATE 1.48 2.19 -0.71 0.57
SINCE SEP 1 3.23 6.11 -2.88 3.12
SINCE JAN 1 36.23 34.11 2.12 31.12
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 T 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 11 -6 0
MONTH TO DATE 85 172 -87 93
SINCE SEP 1 125 228 -103 99
SINCE JUL 1 126 230 -104 99
COOLING
YESTERDAY 0 0 0 1
MONTH TO DATE 64 16 48 34
SINCE SEP 1 219 157 62 289
SINCE JAN 1 1280 1173 107 1552
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 1.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 100 AM
LOWEST 31 200 PM
AVERAGE 66
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 85 1979
MINIMUM TEMPERATURE (F) 42 26 1974
SUNRISE AND SUNSET
OCTOBER 22 2017.......SUNRISE 727 AM EDT SUNSET 621 PM EDT
OCTOBER 23 2017.......SUNRISE 728 AM EDT SUNSET 620 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$