233  
CDUS43 KLOT 172232  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
432 PM CST TUE DEC 17 2024  
   
...............................  
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 17 2024  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 39 3:00 PM 60 1977 37 2 45  
MINIMUM 35 9:41 AM -7 1951 25 10 37  
AVERAGE 37 31 6 41  
 
PRECIPITATION (IN)  
TODAY 0.00 0.44 1928 0.06 -0.06 T  
MONTH TO DATE 0.26 1.04 -0.78 1.69  
SINCE DEC 1 0.26 1.04 -0.78 1.69  
SINCE JAN 1 35.45 33.67 1.78 34.65  
 
DEGREE DAYS  
HEATING  
TODAY 28 34 -6 24  
MONTH TO DATE 576 540 36 412  
SINCE DEC 1 576 540 36 412  
SINCE JUL 1 1282 1624 -342 1364  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1384 1112 272 1149    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 11.2  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 12:00 AM  
LOWEST 64 12:00 PM  
AVERAGE 72  
   
......................................................  
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 59 1939  
MINIMUM TEMPERATURE (F) 24 -9 1983  
 
SUNRISE AND SUNSET  
DECEMBER 17 2024......SUNRISE 7:13 AM CST SUNSET 4:22 PM CST  
DECEMBER 18 2024......SUNRISE 7:14 AM CST SUNSET 4:22 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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