882  
CDUS43 KLOT 190636  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST FRI DEC 19 2025  
   
...............................  
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 18 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 53 12:56 PM 59 1939 37 16 37  
MINIMUM 18 11:59 PM -9 1983 24 -6 27  
AVERAGE 36 30 6 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.20 1.06 2002 0.06 0.14 T  
MONTH TO DATE 0.63 1.10 -0.47 0.26  
SINCE DEC 1 0.63 1.10 -0.47 0.26  
SINCE JAN 1 30.32 33.73 -3.41 35.45  
 
DEGREE DAYS  
HEATING  
YESTERDAY 29 34 -5 33  
MONTH TO DATE 732 574 158 610  
SINCE DEC 1 732 574 158 610  
SINCE JUL 1 1641 1658 -17 1316  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1410 1112 298 1384    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 52 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 19.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 PM  
LOWEST 59 11:00 PM  
AVERAGE 76  
   
......................................................  
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 56 1957  
1988  
MINIMUM TEMPERATURE (F) 24 -12 1983  
 
SUNRISE AND SUNSET  
DECEMBER 19 2025......SUNRISE 7:14 AM CST SUNSET 4:23 PM CST  
DECEMBER 20 2025......SUNRISE 7:15 AM CST SUNSET 4:23 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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