National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-05-12 05:31 UTC
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652
CDUS41 KLWX 120535
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
131 AM EDT WED MAY 12 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 11 2004...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2004
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 87 332 PM 90 1993 73 14 82
MINIMUM 66 553 AM 29 1966 48 18 61
AVERAGE 77 61 16 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 1981 0.14 -0.14 T
MONTH TO DATE 1.27 1.42 -0.15 2.09
SINCE MAR 1 8.37 8.19 0.18 8.51
SINCE JAN 1 11.71 14.01 -2.30 17.47
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 T 3.8 -3.8 1.9
SINCE JUL 1 17.4 21.2 -3.8 50.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 0
MONTH TO DATE 42 71 -29 47
SINCE MAR 1 952 1103 -151 1035
SINCE JUL 1 4677 4836 -159 5079
COOLING
YESTERDAY 12 1 11 7
MONTH TO DATE 37 11 26 20
SINCE MAR 1 74 26 48 28
SINCE JAN 1 74 26 48 28
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 M500 AM
LOWEST 43 M300 PM
AVERAGE 68
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1991
MINIMUM TEMPERATURE (F) 49 34 1969
SUNRISE AND SUNSET
MAY 12 2004...........SUNRISE 600 AM EDT SUNSET 813 PM EDT
MAY 13 2004...........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.
$$