939  
CDUS43 KLOT 202238  
CLICHI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
436 PM CST THU JAN 20 2005  
      
...................  
 
   
THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 20 2005...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 28 109 PM 63 1906 29 -1 21  
MINIMUM 23 224 AM -27 1985 14 9 8  
AVERAGE 26 22 4 15  
 
PRECIPITATION (IN)  
TODAY T 1.13 1898 0.06 -0.06 0.00  
MONTH TO DATE 3.11 1.20 1.91 0.60  
SINCE DEC 1 4.26 3.63 0.63 2.42  
SINCE JAN 1 3.11 1.20 1.91 0.60  
 
SNOWFALL (IN)  
TODAY MM  
 
DEGREE DAYS  
HEATING  
TODAY 39 44 -5 50  
MONTH TO DATE 786 862 -76 796  
SINCE DEC 1 1899 2013 -114 1821  
SINCE JUL 1 2958 3300 -342 3029  
 
COOLING  
TODAY 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 15 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 600 AM  
LOWEST 63 1200 AM  
AVERAGE 76      
................................................  
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 62 1906  
MINIMUM TEMPERATURE (F) 14 -22 1984  
 
SUNRISE AND SUNSET  
JANUARY 20 2005.......SUNRISE 714 AM CST SUNSET 452 PM CST  
JANUARY 21 2005.......SUNRISE 714 AM CST SUNSET 453 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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