National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2002-05-12 05:29 UTC
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000
CDUS41 KLWX 120531
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
129 AM EDT SUN MAY 12 2002
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 11 2002...
CLIMATE NORMAL PERIOD 1971 TO 2000 SNOW/HEATING DEGREE DAYS 1961-1990
CLIMATE RECORD PERIOD 1962 TO 2002
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 72 438 PM 90 1993 73 -1 86
MINIMUM 48 557 AM 29 1966 48 0 52
AVERAGE 60 61 -1 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 1981 0.14 -0.14 0.00
MONTH TO DATE 1.08 1.42 -0.34 0.03
SINCE MAR 1 8.01 8.19 -0.18 6.33
SINCE JAN 1 9.70 14.01 -4.31 10.54
SNOWFALL (IN)
YESTERDAY 0.0 MM MM MM MM MM
MONTH TO DATE 0.0 MM MM 0.0
SINCE MAR 1 0.0 MM MM 1.0
SINCE JUL 1 2.6 MM MM 12.9
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 5 0 0
MONTH TO DATE 58 73 -15 33
SINCE MAR 1 955 1118 -163 1085
SINCE JUL 1 4004 4932 -928 5018
COOLING
YESTERDAY 0 1 -1 4
MONTH TO DATE 11 11 0 29
SINCE MAR 1 66 26 40 55
SINCE JAN 1 66 26 40 55
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 6.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 600 AM
LOWEST 31 200 PM
AVERAGE 46
..........................................................
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 2002...........SUNRISE 600 AM EDT SUNSET 813 PM EDT
MAY 13 2002...........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.