655
CDUS43 KLOT 290635
CLICHI

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST WED DEC 29 2004

..........................

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 28 2004...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1871 TO 2004

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL

............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 41 416 PM 69 1984 31 10 49
MINIMUM 24 340 AM -13 1924 17 7 41
AVERAGE 33 24 9 45

PRECIPITATION (IN)
YESTERDAY 0.00 1.13 1968 0.07 -0.07 0.15
MONTH TO DATE 1.12 2.23 -1.11 1.82
SINCE DEC 1 1.12 2.23 -1.11 1.82
SINCE JAN 1 31.55 36.07 -4.52 32.02

SNOWFALL (IN)
YESTERDAY 0.0
MONTH TO DATE 0.6
SINCE DEC 1 0.6
SINCE JUL 1 5.7

DEGREE DAYS
HEATING
YESTERDAY 32 41 -9 20
MONTH TO DATE 1038 1027 11 935
SINCE DEC 1 1038 1027 11 935
SINCE JUL 1 2097 2314 -217 2143

COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 615 830 -215 695

............................................................

WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 8.7

SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9

WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE

RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 1000 PM
LOWEST 54 300 PM
AVERAGE 65

....................................................

THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 31 63 1984
MINIMUM TEMPERATURE (F) 16 -15 1880

SUNRISE AND SUNSET
DECEMBER 29 2004......SUNRISE 719 AM CST SUNSET 429 PM CST
DECEMBER 30 2004......SUNRISE 719 AM CST SUNSET 430 PM CST

- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.

$$


 

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