958  
CDUS43 KLOT 202255  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
455 PM CST FRI DEC 20 2024  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 20 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 36 11:07 AM 59 1949 36 0 43  
1988  
MINIMUM 32 3:59 PM -9 1963 24 8 31  
AVERAGE 34 30 4 37  
 
PRECIPITATION (IN)  
TODAY 0.03 1.12 2012 0.06 -0.03 0.00  
MONTH TO DATE 0.32 1.21 -0.89 1.69  
SINCE DEC 1 0.32 1.21 -0.89 1.69  
SINCE JAN 1 35.51 33.84 1.67 34.65  
 
DEGREE DAYS  
HEATING  
TODAY 31 35 -4 28  
MONTH TO DATE 675 644 31 514  
SINCE DEC 1 675 644 31 514  
SINCE JUL 1 1381 1728 -347 1466  
 
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 26 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 6:00 AM  
LOWEST 66 4:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 62 1967  
MINIMUM TEMPERATURE (F) 24 -13 1989  
 
SUNRISE AND SUNSET  
DECEMBER 20 2024......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST  
DECEMBER 21 2024......SUNRISE 7:15 AM CST SUNSET 4:24 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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