047  
CDUS43 KLOT 282133  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU SEP 28 2023  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR SEPTEMBER 28 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 69 1:37 PM 92 1953 72 -3 63  
MINIMUM 64 7:36 AM 29 1942 54 10 49  
AVERAGE 67 63 4 56  
 
PRECIPITATION (IN)  
TODAY T 3.65 1972 0.08 -0.08 0.00  
MONTH TO DATE 3.60 2.60 1.00 2.06  
SINCE SEP 1 3.60 2.60 1.00 2.06  
SINCE JAN 1 29.21 26.63 2.58 25.98  
 
DEGREE DAYS  
HEATING  
TODAY 0 4 -4 9  
MONTH TO DATE 15 49 -34 37  
SINCE SEP 1 15 49 -34 37  
SINCE JUL 1 16 53 -37 37  
 
COOLING  
TODAY 2 2 0 0  
MONTH TO DATE 130 131 -1 214  
SINCE SEP 1 130 131 -1 214  
SINCE JAN 1 1092 1087 5 1486    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 7.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 12:00 AM  
LOWEST 70 11:00 AM  
AVERAGE 79  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 99 1953  
MINIMUM TEMPERATURE (F) 53 33 1942  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2023.....SUNRISE 6:44 AM CDT SUNSET 6:38 PM CDT  
SEPTEMBER 29 2023.....SUNRISE 6:46 AM CDT SUNSET 6:36 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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