National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-11-12 05:23 UTC
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031
CDUS41 KLWX 120523
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1223 AM EST SUN NOV 12 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR NOVEMBER 11 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 37 353 PM 78 2006 60 -23 64
MINIMUM 21 706 AM 16 1973 37 -16 35
AVERAGE 29 48 -19 50
PRECIPITATION (IN)
YESTERDAY 0.00 1.16 1995 0.10 -0.10 0.00
MONTH TO DATE 1.66 1.25 0.41 0.19
SINCE SEP 1 6.56 8.42 -1.86 3.39
SINCE JAN 1 39.56 36.42 3.14 31.39
SNOWFALL (IN)
YESTERDAY 0.0 5.3 1987 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1
SINCE JUL 1 T 0.1 -0.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 36 17 19 15
MONTH TO DATE 172 170 2 128
SINCE SEP 1 392 524 -132 339
SINCE JUL 1 393 526 -133 339
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 2
SINCE SEP 1 220 160 60 296
SINCE JAN 1 1281 1176 105 1559
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 3.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 900 PM
LOWEST 32 200 PM
AVERAGE 57
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 74 1964
MINIMUM TEMPERATURE (F) 36 22 1988
1973
SUNRISE AND SUNSET
NOVEMBER 12 2017......SUNRISE 649 AM EST SUNSET 458 PM EST
NOVEMBER 13 2017......SUNRISE 651 AM EST SUNSET 457 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$