National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-05-17 05:34 UTC
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339
CDUS41 KLWX 170536
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
134 AM EDT MON MAY 17 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 16 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 80 155 PM 90 1998 75 5 61
MINIMUM 65 412 AM 36 1973 50 15 51
AVERAGE 73 62 11 56
PRECIPITATION (IN)
YESTERDAY 0.51 1.62 1983 0.14 0.37 0.27
MONTH TO DATE 1.97 2.12 -0.15 4.76
SINCE MAR 1 9.07 8.89 0.18 11.18
SINCE JAN 1 12.41 14.71 -2.30 20.14
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 4 -4 9
MONTH TO DATE 43 95 -52 79
SINCE MAR 1 953 1127 -174 1067
SINCE JUL 1 4678 4860 -182 5111
COOLING
YESTERDAY 8 2 6 0
MONTH TO DATE 90 18 72 20
SINCE MAR 1 127 33 94 28
SINCE JAN 1 127 33 94 28
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 2.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1200 AM
LOWEST 54 M200 PM
AVERAGE 77
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 89 1986
MINIMUM TEMPERATURE (F) 50 30 1984
SUNRISE AND SUNSET
MAY 17 2004...........SUNRISE 555 AM EDT SUNSET 818 PM EDT
MAY 18 2004...........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.
$$