National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-04-20 05:47 UTC
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000
CDUS41 KLWX 200549
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
147 AM EDT FRI APR 20 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 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 57 453 PM 91 2002 67 -10 75
MINIMUM 43 1136 PM 27 2001 41 2 44
1990
AVERAGE 50 54 -4 60
PRECIPITATION (IN)
YESTERDAY T 0.75 1998 0.11 -0.11 0.00
MONTH TO DATE 3.11 1.98 1.13 1.61
SINCE MAR 1 6.04 5.53 0.51 1.68
SINCE JAN 1 10.69 11.35 -0.66 6.46
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.2 0.4 -0.2
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 15 11 4 5
MONTH TO DATE 350 259 91 149
SINCE MAR 1 930 929 1 738
SINCE JUL 1 4306 4689 -383 3966
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 9
SINCE MAR 1 8 4 4 12
SINCE JAN 1 8 4 4 12
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 2.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 400 AM
LOWEST 51 400 PM
AVERAGE 70
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 1985
1976
MINIMUM TEMPERATURE (F) 41 28 1974
SUNRISE AND SUNSET
APRIL 20 2007.........SUNRISE 627 AM EDT SUNSET 751 PM EDT
APRIL 21 2007.........SUNRISE 625 AM EDT SUNSET 752 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$