National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-05-20 05:42 UTC
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474
CDUS41 KLWX 200543
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
142 AM EDT THU MAY 20 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 19 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 77 414 PM 92 1997 75 2 71
MINIMUM 64 400 AM 36 2002 51 13 43
AVERAGE 71 63 8 57
PRECIPITATION (IN)
YESTERDAY 0.02 1.18 1988 0.14 -0.12 0.00
MONTH TO DATE 2.00 2.54 -0.54 5.41
SINCE MAR 1 9.10 9.31 -0.21 11.83
SINCE JAN 1 12.44 15.13 -2.69 20.79
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 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 8
MONTH TO DATE 43 107 -64 116
SINCE MAR 1 953 1139 -186 1104
SINCE JUL 1 4678 4872 -194 5148
COOLING
YESTERDAY 6 2 4 0
MONTH TO DATE 113 24 89 20
SINCE MAR 1 150 39 111 28
SINCE JAN 1 150 39 111 28
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 M200 AM
LOWEST 64 M200 PM
AVERAGE 79
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 93 1996
MINIMUM TEMPERATURE (F) 51 36 2002
SUNRISE AND SUNSET
MAY 20 2004...........SUNRISE 553 AM EDT SUNSET 820 PM EDT
MAY 21 2004...........SUNRISE 552 AM EDT SUNSET 821 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$