235  
CDUS43 KLOT 270636  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST FRI DEC 27 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 26 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 48 9:02 PM 61 2019 34 14 50  
MINIMUM 38 1:29 AM -11 1983 22 16 31  
AVERAGE 43 28 15 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.05 0.98 1888 0.06 -0.01 0.01  
MONTH TO DATE 0.63 1.79 -1.16 2.62  
SINCE DEC 1 0.63 1.79 -1.16 2.62  
SINCE JAN 1 33.62 37.54 -3.92 33.38  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.6 2009 0.2 -0.2 0.0  
MONTH TO DATE 2.4 6.1 -3.7 0.3  
SINCE DEC 1 2.4 6.1 -3.7 0.3  
SINCE JUL 1 5.3 8.1 -2.8 3.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 37 -15 24  
MONTH TO DATE 900 881 19 649  
SINCE DEC 1 900 881 19 649  
SINCE JUL 1 1667 2032 -365 1613  
 
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 15 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 9:00 AM  
LOWEST 86 1:00 PM  
AVERAGE 92  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 34 61 1982  
2008  
MINIMUM TEMPERATURE (F) 22 -10 1886  
1950  
 
SUNRISE AND SUNSET  
DECEMBER 27 2024......SUNRISE 7:19 AM CST SUNSET 4:27 PM CST  
DECEMBER 28 2024......SUNRISE 7:19 AM CST SUNSET 4:28 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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