267  
CDUS43 KLOT 250632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT FRI AUG 25 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 24 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 100R 2:50 PM 100 1947 82 18 85  
MINIMUM 75 11:59 PM 48 1942 64 11 67  
AVERAGE 88 73 15 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.47 1895 0.13 -0.13 0.00  
MONTH TO DATE 1.33 3.32 -1.99 1.06  
SINCE JUN 1 11.30 11.13 0.17 8.22  
SINCE JAN 1 24.26 25.78 -1.52 24.12  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 T  
SINCE JUL 1 0.0 0.0 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 25 33 -8 7  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY 23 8 15 11  
MONTH TO DATE 261 224 37 234  
SINCE JUN 1 803 749 54 791  
SINCE JAN 1 896 819 77 936    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 11.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 4:00 AM  
LOWEST 47 4:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 95 1959  
1991  
2003  
MINIMUM TEMPERATURE (F) 64 47 1917  
 
SUNRISE AND SUNSET  
AUGUST 25 2023........SUNRISE 6:10 AM CDT SUNSET 7:37 PM CDT  
AUGUST 26 2023........SUNRISE 6:11 AM CDT SUNSET 7:35 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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