291  
CDUS43 KLOT 160648  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
148 AM CDT FRI AUG 16 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 15 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 76 12:18 AM 98 1944 83 -7 78  
MINIMUM 67 7:21 AM 48 2004 66 1 62  
AVERAGE 72 74 -2 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.25 1.87 1993 0.14 0.11 0.20  
MONTH TO DATE 1.10 2.09 -0.99 1.13  
SINCE JUN 1 10.09 9.90 0.19 11.10  
SINCE JAN 1 25.36 24.55 0.81 24.06  
 
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 T 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 6 33 -27 25  
SINCE JUL 1 0 2 -2 0  
 
COOLING  
YESTERDAY 7 9 -2 5  
MONTH TO DATE 140 147 -7 147  
SINCE JUN 1 734 672 62 689  
SINCE JAN 1 814 742 72 782    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 10.2  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 10:00 PM  
LOWEST 64 3:00 AM  
AVERAGE 79  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 98 1983  
1988  
MINIMUM TEMPERATURE (F) 65 48 2004  
 
SUNRISE AND SUNSET  
AUGUST 16 2024........SUNRISE 6:01 AM CDT SUNSET 7:50 PM CDT  
AUGUST 17 2024........SUNRISE 6:02 AM CDT SUNSET 7:48 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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