National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-05-20 05:38 UTC
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000
CDUS41 KLWX 200539
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
138 AM EDT SUN MAY 20 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 19 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2007
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 505 PM 92 1997 75 -2 62
1996
MINIMUM 48 214 AM 36 2002 51 -3 49
AVERAGE 61 63 -2 56
PRECIPITATION (IN)
YESTERDAY 0.00 1.18 1988 0.14 -0.14 0.03
MONTH TO DATE 0.23 2.54 -2.31 1.74
SINCE MAR 1 6.54 9.31 -2.77 6.67
SINCE JAN 1 11.19 15.13 -3.94 11.45
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 14.7 21.2 -6.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 4 4 0 9
MONTH TO DATE 83 107 -24 100
SINCE MAR 1 1055 1139 -84 921
SINCE JUL 1 4431 4899 -468 4149
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 44 24 20 8
SINCE MAR 1 67 39 28 20
SINCE JAN 1 67 39 28 20
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 10.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 1200 AM
LOWEST 23 400 PM
AVERAGE 56
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1996
MINIMUM TEMPERATURE (F) 51 36 2002
SUNRISE AND SUNSET
MAY 20 2007...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 21 2007...........SUNRISE 553 AM EDT SUNSET 821 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$