National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-05-12 05:42 UTC
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000
CDUS41 KLWX 120542
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
142 AM EDT SAT MAY 12 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 11 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 85 447 PM 90 1993 73 12 69
MINIMUM 63 1132 PM 29 1966 48 15 53
AVERAGE 74 61 13 61
PRECIPITATION (IN)
YESTERDAY T 0.78 2006 0.14 -0.14 0.78
MONTH TO DATE 0.05 1.42 -1.37 1.03
SINCE MAR 1 6.36 8.19 -1.83 5.96
SINCE JAN 1 11.01 14.01 -3.00 10.74
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE AUG 1 14.7 21.2 -6.5
SINCE JUL 1 14.7 21.2 -6.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 4
MONTH TO DATE 50 71 -21 50
SINCE MAR 1 1022 1103 -81 871
SINCE JUL 1 4398 4863 -465 4099
COOLING
YESTERDAY 9 1 8 0
MONTH TO DATE 27 11 16 8
SINCE MAR 1 50 26 24 20
SINCE JAN 1 50 26 24 20
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 300 AM
LOWEST 37 200 PM
AVERAGE 65
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1991
1982
MINIMUM TEMPERATURE (F) 49 34 1969
SUNRISE AND SUNSET
MAY 12 2007...........SUNRISE 600 AM EDT SUNSET 813 PM EDT
MAY 13 2007...........SUNRISE 559 AM EDT SUNSET 814 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$