National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2002-07-18 05:45 UTC
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386
CDUS41 KLWX 180548
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
145 AM EDT THU JUL 18 2002
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR JULY 17 2002...
CLIMATE NORMAL PERIOD 1971 TO 2000
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 91 417 PM 100 1997 88 3 90
MINIMUM 61 509 AM 55 1976 64 -3 64
AVERAGE 76 76 0 77
PRECIPITATION (IN)
YESTERDAY 0.00 0.60 1988 0.11 -0.11 T
MONTH TO DATE 1.65 2.01 -0.36 2.99
SINCE JUN 1 5.26 6.08 -0.82 7.81
SINCE JAN 1 18.63 22.89 -4.26 24.22
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 1 -1 3
SINCE JUN 1 2 23 -21 16
SINCE JUL 1 0 1 -1 3
COOLING
YESTERDAY 11 11 0 12
MONTH TO DATE 188 180 8 121
SINCE JUN 1 425 380 45 367
SINCE JAN 1 553 455 98 434
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 42 1100 AM
AVERAGE 68
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 100 1986
MINIMUM TEMPERATURE (F) 64 51 1985
SUNRISE AND SUNSET
JULY 18 2002..........SUNRISE 559 AM EDT SUNSET 833 PM EDT
JULY 19 2002..........SUNRISE 600 AM EDT SUNSET 832 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.