422  
CDUS43 KLOT 030642  
CLICHI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1240 AM CST MON JAN 3 2005  
      
................  
 
 
   
THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 2 2005...  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1871 TO 2005  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL  
     
.....................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 54 642 AM 61 2004 30 24 61  
MINIMUM 33 1151 PM -16 1879 15 18 37  
AVERAGE 44 23 21 49  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 1.24 1999 0.06 -0.03 T  
MONTH TO DATE 0.34 0.12 0.22 T  
SINCE DEC 1 1.49 2.55 -1.06 1.82  
SINCE JAN 1 0.34 0.12 0.22 T  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.6  
SINCE JUL 1 5.7  
 
DEGREE DAYS  
HEATING  
YESTERDAY 21 42 -21 16  
MONTH TO DATE 53 84 -31 46  
SINCE DEC 1 1166 1235 -69 1071  
SINCE JUL 1 2225 2522 -297 2279  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0  
     
.....................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 82 1200 PM  
AVERAGE 91  
     
.............................................  
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 30 60 1950  
1874  
MINIMUM TEMPERATURE (F) 15 -18 1879  
 
SUNRISE AND SUNSET  
JANUARY 3 2005.......SUNRISE 720 AM CST SUNSET 433 PM CST  
JANUARY 4 2005.......SUNRISE 720 AM CST SUNSET 434 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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