586  
CDUS43 KLOT 242238  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CST TUE DEC 24 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 24 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 38 2:59 PM 64 1889 34 4 55  
MINIMUM 34 8:49 AM -25 1983 23 11 48  
AVERAGE 36 28 8 52  
 
PRECIPITATION (IN)  
TODAY 0.00 2.61 1965 0.07 -0.07 T  
MONTH TO DATE 0.58 1.67 -1.09 2.22  
SINCE DEC 1 0.58 1.67 -1.09 2.22  
SINCE JAN 1 33.57 37.42 -3.85 32.98  
 
SNOWFALL (IN)  
TODAY 0.0 7.1 1918 0.3 -0.3 0.0  
MONTH TO DATE 2.4 5.6 -3.2 0.3  
SINCE DEC 1 2.4 5.6 -3.2 0.3  
SINCE JUL 1 5.3 7.6 -2.3 3.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 37 -8 13  
MONTH TO DATE 847 807 40 615  
SINCE DEC 1 847 807 40 615  
SINCE JUL 1 1614 1958 -344 1579  
 
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 N (10)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 4:00 AM  
LOWEST 59 2:00 PM  
AVERAGE 74  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 64 1982  
MINIMUM TEMPERATURE (F) 22 -17 1983  
 
SUNRISE AND SUNSET  
DECEMBER 24 2024......SUNRISE 7:18 AM CST SUNSET 4:25 PM CST  
DECEMBER 25 2024......SUNRISE 7:18 AM CST SUNSET 4:26 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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