581  
CDUS43 KLOT 260633  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT SAT SEP 26 2026  
   
...............................  
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 25 2026  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 64 4:47 PM 92 2017 73 -9 77  
MINIMUM 56 11:29 PM 30 1942 55 1 60  
AVERAGE 60 64 -4 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.00 1931 0.09 -0.09 0.00  
MONTH TO DATE 4.49 2.34 2.15 0.56  
SINCE SEP 1 4.49 2.34 2.15 0.56  
SINCE JAN 1 36.63 26.37 10.26 25.38  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 4 1 0  
MONTH TO DATE 16 37 -21 21  
SINCE SEP 1 16 37 -21 21  
SINCE JUL 1 16 41 -25 23  
 
COOLING  
YESTERDAY 0 3 -3 4  
MONTH TO DATE 201 125 76 157  
SINCE SEP 1 201 125 76 157  
SINCE JAN 1 1172 1081 91 1298    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 2:00 AM  
LOWEST 52 5:00 PM  
AVERAGE 70  
   
......................................................  
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 93 1998  
2017  
MINIMUM TEMPERATURE (F) 55 30 1928  
 
SUNRISE AND SUNSET  
SEPTEMBER 26 2026.....SUNRISE 6:43 AM CDT SUNSET 6:41 PM CDT  
SEPTEMBER 27 2026.....SUNRISE 6:44 AM CDT SUNSET 6:39 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page