234  
CDUS43 KLOT 200643  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1243 AM CST FRI DEC 20 2024  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 19 2024
 
 
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)  
YESTERDAY  
MAXIMUM 34 11:59 PM 56 1957 37 -3 34  
1988  
MINIMUM 27 6:37 AM -12 1983 24 3 18  
AVERAGE 31 30 1 26  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.80 1987 0.05 -0.02 0.00  
MONTH TO DATE 0.29 1.15 -0.86 1.69  
SINCE DEC 1 0.29 1.15 -0.86 1.69  
SINCE JAN 1 35.48 33.78 1.70 34.65  
 
DEGREE DAYS  
HEATING  
YESTERDAY 34 35 -1 39  
MONTH TO DATE 644 609 35 486  
SINCE DEC 1 644 609 35 486  
SINCE JUL 1 1350 1693 -343 1438  
 
COOLING  
YESTERDAY 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 20 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LT FREEZING RAIN  
HEAVY SNOW  
LIGHT SNOW  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 7:00 PM  
LOWEST 58 1:00 AM  
AVERAGE 73  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 59 1949  
1988  
MINIMUM TEMPERATURE (F) 24 -9 1963  
 
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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