National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2017-04-25 05:24 UTC
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688
CDUS41 KLWX 250525
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
124 AM EDT TUE APR 25 2017
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR APRIL 24 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 57 111 PM 85 2011 70 -13 69
1994
1990
MINIMUM 51 1159 PM 30 1989 45 6 44
AVERAGE 54 57 -3 57
PRECIPITATION (IN)
YESTERDAY 0.27 1.25 1983 0.12 0.15 0.00
MONTH TO DATE 2.87 2.77 0.10 1.38
SINCE MAR 1 6.99 6.15 0.84 2.83
SINCE JAN 1 10.43 11.57 -1.14 11.09
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0
MONTH TO DATE T 0.3 -0.3
SINCE JUL 1 7.3 22.0 -14.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 11 9 2 8
MONTH TO DATE 169 290 -121 291
SINCE MAR 1 809 937 -128 737
SINCE JUL 1 3702 4527 -825 3828
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 35 12 23 10
SINCE MAR 1 37 15 22 15
SINCE JAN 1 37 15 22 15
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.4
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 89 400 AM
LOWEST 66 1100 AM
AVERAGE 78
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 92 2009
MINIMUM TEMPERATURE (F) 45 29 1969
SUNRISE AND SUNSET
APRIL 25 2017.........SUNRISE 619 AM EDT SUNSET 757 PM EDT
APRIL 26 2017.........SUNRISE 618 AM EDT SUNSET 758 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$