625  
CDUS43 KLOT 120706  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
206 AM CDT WED AUG 12 2026  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 11 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 81 3:58 PM 98 1874 83 -2 89  
1941  
MINIMUM 69 11:15 AM 47 1982 66 3 72  
AVERAGE 75 74 1 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.47 3.70 1923 0.14 0.33 0.31  
MONTH TO DATE 3.70 1.52 2.18 0.37  
SINCE JUN 1 14.06 9.33 4.73 8.29  
SINCE JAN 1 29.65 23.98 5.67 17.79  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1989 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 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 11 33 -22 13  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY 10 10 0 16  
MONTH TO DATE 114 110 4 129  
SINCE JUN 1 669 635 34 818  
SINCE JAN 1 747 705 42 852    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 PM  
LOWEST 72 6:00 PM  
AVERAGE 83  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 101 1918  
MINIMUM TEMPERATURE (F) 66 47 1982  
 
SUNRISE AND SUNSET  
AUGUST 12 2026........SUNRISE 5:56 AM CDT SUNSET 7:56 PM CDT  
AUGUST 13 2026........SUNRISE 5:58 AM CDT SUNSET 7:55 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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