National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-01-18 05:21 UTC
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853
CDUS41 KLWX 180522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST WED JAN 18 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 17 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2017
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 52 1053 PM 70 1990 42 10 37
MINIMUM 40 808 AM -7 1982 24 16 30
AVERAGE 46 33 13 34
PRECIPITATION (IN)
YESTERDAY 0.20 1.14 1994 0.09 0.11 0.02
MONTH TO DATE 1.80 1.42 0.38 1.82
SINCE DEC 1 4.16 4.38 -0.22 5.58
SINCE JAN 1 1.80 1.42 0.38 1.82
SNOWFALL (IN)
YESTERDAY 0.0 4.2 1965 0.3 -0.3
MONTH TO DATE 0.7 3.5 -2.8
SINCE JUL 1 0.7 7.5 -6.8
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 19 32 -13 31
MONTH TO DATE 471 544 -73 510
SINCE DEC 1 1294 1426 -132 1013
SINCE JUL 1 2021 2342 -321 1763
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 2
SINCE JAN 1 0 0 0 0
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 PM
LOWEST 89 1200 PM
AVERAGE 95
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 70 1990
MINIMUM TEMPERATURE (F) 24 -1 1994
SUNRISE AND SUNSET
JANUARY 18 2017.......SUNRISE 726 AM EST SUNSET 515 PM EST
JANUARY 19 2017.......SUNRISE 725 AM EST SUNSET 517 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$