326  
CDUS43 KLOT 050637  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1237 AM CST THU DEC 05 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 4 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 39 5:12 PM 66 1998 40 -1 41  
MINIMUM 16 11:59 PM 0 1893 27 -11 32  
AVERAGE 28 34 -6 37  
 
PRECIPITATION (IN)  
YESTERDAY T 1.19 1973 0.08 -0.08 0.00  
MONTH TO DATE T 0.31 -0.31 0.94  
SINCE DEC 1 T 0.31 -0.31 0.94  
SINCE JAN 1 32.99 36.06 -3.07 31.70  
 
SNOWFALL (IN)  
YESTERDAY 0.2 6.4 2016 0.2 0.0 0.0  
MONTH TO DATE 0.2 0.8 -0.6 0.0  
SINCE DEC 1 0.2 0.8 -0.6 0.0  
SINCE JUL 1 3.1 2.8 0.3 2.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 37 31 6 28  
MONTH TO DATE 166 122 44 102  
SINCE DEC 1 166 122 44 102  
SINCE JUL 1 933 1273 -340 1066  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1212 1003 209 1145    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 18.3  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 9:00 PM  
LOWEST 42 7:00 PM  
AVERAGE 60  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 68 2001  
MINIMUM TEMPERATURE (F) 27 4 2005  
 
SUNRISE AND SUNSET  
DECEMBER 5 2024......SUNRISE 7:05 AM CST SUNSET 4:20 PM CST  
DECEMBER 6 2024......SUNRISE 7:05 AM CST SUNSET 4:20 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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