National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2007-05-21 05:37 UTC
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000
CDUS41 KLWX 210538
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
137 AM EDT MON MAY 21 2007
...................................
...THE WASHINGTON DULLES CLIMATE SUMMARY FOR MAY 20 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1962 TO 2007
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 82 137 PM 93 1996 76 6 73
MINIMUM 56 647 AM 36 2002 51 5 51
AVERAGE 69 63 6 62
PRECIPITATION (IN)
YESTERDAY 0.01 1.86 2005 0.14 -0.13 T
MONTH TO DATE 0.24 2.68 -2.44 1.74
SINCE MAR 1 6.55 9.45 -2.90 6.67
SINCE JAN 1 11.20 15.27 -4.07 11.45
SNOWFALL (IN)
YESTERDAY 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0
SINCE JUL 1 14.7 21.2 -6.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 3
MONTH TO DATE 83 111 -28 103
SINCE MAR 1 1055 1143 -88 924
SINCE JUL 1 4431 4903 -472 4152
COOLING
YESTERDAY 4 2 2 0
MONTH TO DATE 48 26 22 8
SINCE MAR 1 71 41 30 20
SINCE JAN 1 71 41 30 20
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 700 AM
LOWEST 30 200 PM
AVERAGE 54
..........................................................
THE WASHINGTON DULLES CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1996
MINIMUM TEMPERATURE (F) 52 33 1992
SUNRISE AND SUNSET
MAY 21 2007...........SUNRISE 553 AM EDT SUNSET 821 PM EDT
MAY 22 2007...........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.
$$