383  
CDUS43 KLOT 102245  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
445 PM CST TUE DEC 10 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 10 2024  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 42 12:03 AM 62 1879 38 4 35  
MINIMUM 32 3:59 PM -8 1919 26 6 30  
1978  
AVERAGE 37 32 5 33  
 
PRECIPITATION (IN)  
TODAY T 2.18 1971 0.07 -0.07 T  
MONTH TO DATE T 0.76 -0.76 1.30  
SINCE DEC 1 T 0.76 -0.76 1.30  
SINCE JAN 1 32.99 36.51 -3.52 32.06  
 
SNOWFALL (IN)  
TODAY T 10.9 1934 0.3 -0.3 T  
MONTH TO DATE 0.2 2.2 -2.0 0.3  
SINCE DEC 1 0.2 2.2 -2.0 0.3  
SINCE JUL 1 3.1 4.2 -1.1 3.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 28 33 -5 32  
MONTH TO DATE 342 316 26 246  
SINCE DEC 1 342 316 26 246  
SINCE JUL 1 1109 1467 -358 1210  
 
COOLING  
TODAY 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 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.9  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 6:00 AM  
LOWEST 55 12:00 AM  
AVERAGE 65  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 61 1949  
MINIMUM TEMPERATURE (F) 26 -5 1972  
 
SUNRISE AND SUNSET  
DECEMBER 10 2024......SUNRISE 7:09 AM CST SUNSET 4:20 PM CST  
DECEMBER 11 2024......SUNRISE 7:10 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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