National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-01-04 05:21 UTC
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927
CDUS41 KLWX 040522
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1221 AM EST WED JAN 4 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 3 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 44 1159 PM 68 2000 42 2 54
MINIMUM 41 1237 PM 8 1979 24 17 23
1971
AVERAGE 43 33 10 39
PRECIPITATION (IN)
YESTERDAY 0.92 1.37 1999 0.07 0.85 0.00
MONTH TO DATE 1.19 0.23 0.96 0.00
SINCE DEC 1 3.55 3.19 0.36 3.76
SINCE JAN 1 1.19 0.23 0.96 0.00
SNOWFALL (IN)
YESTERDAY 0.0 0.9 1989 0.2 -0.2
MONTH TO DATE 0.0 0.5 -0.5
SINCE JUL 1 T 4.5 -4.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 32 -10 26
MONTH TO DATE 66 96 -30 81
SINCE DEC 1 889 978 -89 584
SINCE JUL 1 1616 1894 -278 1334
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 10 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 800 PM
LOWEST 89 900 AM
AVERAGE 95
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 74 1997
MINIMUM TEMPERATURE (F) 24 5 1979
SUNRISE AND SUNSET
JANUARY 4 2017.......SUNRISE 729 AM EST SUNSET 501 PM EST
JANUARY 5 2017.......SUNRISE 729 AM EST SUNSET 502 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$