National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2005-05-18 05:38 UTC
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000
CDUS41 KLWX 180539
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
138 AM EDT WED MAY 18 2005
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 17 2005...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2005
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 67 514 PM 89 1986 75 -8 82
MINIMUM 50 1159 PM 30 1984 50 0 64
AVERAGE 59 63 -4 73
PRECIPITATION (IN)
YESTERDAY 0.00 1.22 1970 0.14 -0.14 0.01
MONTH TO DATE 1.38 2.26 -0.88 1.98
SINCE MAR 1 9.65 9.03 0.62 9.07
SINCE JAN 1 14.20 14.85 -0.65 12.41
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0
2001
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.2 3.8 -2.6 T
SINCE JUL 1 17.3 21.2 -3.9 17.4
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 6 4 2 0
MONTH TO DATE 117 99 18 43
SINCE MAR 1 1156 1131 25 953
SINCE JUL 1 4492 4891 -399 4680
COOLING
YESTERDAY 0 2 -2 8
MONTH TO DATE 15 20 -5 98
SINCE MAR 1 26 35 -9 135
SINCE JAN 1 26 35 -9 135
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 3.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 1000 PM
LOWEST 40 100 PM
AVERAGE 62
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 91 1987
MINIMUM TEMPERATURE (F) 51 33 1973
SUNRISE AND SUNSET
MAY 18 2005...........SUNRISE 554 AM EDT SUNSET 818 PM EDT
MAY 19 2005...........SUNRISE 554 AM EDT SUNSET 819 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$