National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2020-01-29 05:24 UTC
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596
CDUS41 KLWX 290525
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1224 AM EST WED JAN 29 2020
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JANUARY 28 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1960 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 45 333 PM 68 2002 43 2 38
MINIMUM 38 749 AM -17 1987 24 14 27
AVERAGE 42 34 8 33
PRECIPITATION (IN)
YESTERDAY 0.00 1.64 1998 0.10 -0.10 0.00
MONTH TO DATE 3.25 2.40 0.85 3.71
SINCE DEC 1 6.22 5.36 0.86 9.47
SINCE JAN 1 3.25 2.40 0.85 3.71
SNOWFALL (IN)
YESTERDAY 0.0 6.7 1994 0.3 -0.3
MONTH TO DATE 2.3 6.4 -4.1
SINCE JUL 1 2.9 10.4 -7.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 31 -8 32
MONTH TO DATE 712 894 -182 865
SINCE DEC 1 1512 1776 -264 1669
SINCE JUL 1 2375 2692 -317 2627
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 12.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 1200 AM
LOWEST 49 100 PM
AVERAGE 57
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 75 1975
MINIMUM TEMPERATURE (F) 24 -1 1987
1963
SUNRISE AND SUNSET
JANUARY 29 2020.......SUNRISE 719 AM EST SUNSET 527 PM EST
JANUARY 30 2020.......SUNRISE 718 AM EST SUNSET 528 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$