National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-09-24 05:23 UTC
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929
CDUS41 KLWX 240523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
123 AM EDT SUN SEP 24 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 23 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 86 417 PM 93 2010 77 9 91
2005
MINIMUM 58 633 AM 33 1983 53 5 56
AVERAGE 72 65 7 74
PRECIPITATION (IN)
YESTERDAY 0.00 1.74 2003 0.13 -0.13 0.00
MONTH TO DATE 1.75 3.00 -1.25 0.40
SINCE SEP 1 1.75 3.00 -1.25 0.40
SINCE JAN 1 34.75 31.00 3.75 28.40
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 0 3 -3 0
MONTH TO DATE 30 27 3 0
SINCE SEP 1 30 27 3 0
SINCE JUL 1 31 29 2 0
COOLING
YESTERDAY 7 3 4 9
MONTH TO DATE 102 126 -24 251
SINCE SEP 1 102 126 -24 251
SINCE JAN 1 1163 1142 21 1514
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 4.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 42 400 PM
AVERAGE 71
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 97 2010
MINIMUM TEMPERATURE (F) 53 30 1974
SUNRISE AND SUNSET
SEPTEMBER 24 2017.....SUNRISE 659 AM EDT SUNSET 703 PM EDT
SEPTEMBER 25 2017.....SUNRISE 700 AM EDT SUNSET 702 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$