National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2004-04-20 05:30 UTC
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604
CDUS41 KLWX 200532
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
130 AM EDT TUE APR 20 2004
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR APRIL 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 90 212 PM 91 2002 67 23 61
MINIMUM 61 543 AM 27 2001 41 20 42
1990
AVERAGE 76 54 22 52
PRECIPITATION (IN)
YESTERDAY 0.00 0.75 1998 0.11 -0.11 0.20
MONTH TO DATE 3.52 1.98 1.54 2.24
SINCE MAR 1 5.57 5.53 0.04 5.95
SINCE JAN 1 8.91 11.35 -2.44 14.91
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0
2001
MONTH TO DATE 0.0 0.4 -0.4 T
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 11 -11 13
MONTH TO DATE 288 259 29 260
SINCE MAR 1 862 929 -67 901
SINCE JUL 1 4587 4662 -75 4945
COOLING
YESTERDAY 11 0 11 0
MONTH TO DATE 16 0 16 8
SINCE MAR 1 16 4 12 8
SINCE JAN 1 16 4 12 8
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.9
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 67 M400 AM
LOWEST 19 M200 PM
AVERAGE 43
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 1985
MINIMUM TEMPERATURE (F) 41 28 1974
SUNRISE AND SUNSET
APRIL 20 2004.........SUNRISE 626 AM EDT SUNSET 752 PM EDT
APRIL 21 2004.........SUNRISE 624 AM EDT SUNSET 753 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$