National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-01-20 05:28 UTC
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039
CDUS41 KLWX 200528
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1228 AM EST FRI JAN 20 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 19 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 52 338 PM 65 1972 42 10 26
MINIMUM 31 1132 PM -6 1994 24 7 13
AVERAGE 42 33 9 20
PRECIPITATION (IN)
YESTERDAY 0.00 1.36 1987 0.09 -0.09 0.00
MONTH TO DATE 1.80 1.59 0.21 1.82
SINCE DEC 1 4.16 4.55 -0.39 5.58
SINCE JAN 1 1.80 1.59 0.21 1.82
SNOWFALL (IN)
YESTERDAY 0.0 4.3 1978 0.3 -0.3
MONTH TO DATE 0.7 4.0 -3.3
SINCE JUL 1 0.7 8.0 -7.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 32 -9 45
MONTH TO DATE 510 608 -98 597
SINCE DEC 1 1333 1490 -157 1100
SINCE JUL 1 2060 2406 -346 1850
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 15 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 800 PM
LOWEST 54 200 PM
AVERAGE 73
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 63 2006
MINIMUM TEMPERATURE (F) 24 -7 1985
SUNRISE AND SUNSET
JANUARY 20 2017.......SUNRISE 725 AM EST SUNSET 518 PM EST
JANUARY 21 2017.......SUNRISE 724 AM EST SUNSET 519 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$