562  
CDUS43 KLOT 240634  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1234 AM CST TUE DEC 24 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 23 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 7:52 PM 62 1982 35 4 49  
MINIMUM 32 2:39 AM -21 1983 23 9 43  
AVERAGE 36 29 7 46  
 
PRECIPITATION (IN)  
YESTERDAY T 2.50 1871 0.06 -0.06 T  
MONTH TO DATE 0.58 1.60 -1.02 2.22  
SINCE DEC 1 0.58 1.60 -1.02 2.22  
SINCE JAN 1 33.57 37.35 -3.78 32.98  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.2 1961 0.2 -0.2 0.0  
MONTH TO DATE 2.4 5.3 -2.9 0.3  
SINCE DEC 1 2.4 5.3 -2.9 0.3  
SINCE JUL 1 5.3 7.3 -2.0 3.0  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 29 36 -7 19  
MONTH TO DATE 818 770 48 602  
SINCE DEC 1 818 770 48 602  
SINCE JUL 1 1585 1921 -336 1566  
 
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 21 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 11:00 PM  
LOWEST 63 3:00 AM  
AVERAGE 74  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 64 1889  
MINIMUM TEMPERATURE (F) 23 -25 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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