834  
CDUS43 KLOT 192133  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT MON AUG 19 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 19 2024  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 77 2:44 PM 99 1947 82 -5 84  
1983  
MINIMUM 63 6:12 AM 51 1992 65 -2 63  
AVERAGE 70 74 -4 74  
 
PRECIPITATION (IN)  
TODAY 0.00 2.07 1921 0.13 -0.13 0.00  
MONTH TO DATE 1.50 2.66 -1.16 1.33  
SINCE JUN 1 10.49 10.47 0.02 11.30  
SINCE JAN 1 25.76 25.12 0.64 24.26  
 
SNOWFALL (IN)  
TODAY 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  
TODAY 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  
TODAY 5 9 -4 9  
MONTH TO DATE 178 183 -5 173  
SINCE JUN 1 772 708 64 715  
SINCE JAN 1 852 778 74 808    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 13.4  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 6:00 AM  
LOWEST 46 12:00 PM  
AVERAGE 67  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 98 1947  
MINIMUM TEMPERATURE (F) 65 47 1950  
 
SUNRISE AND SUNSET  
AUGUST 19 2024........SUNRISE 6:04 AM CDT SUNSET 7:45 PM CDT  
AUGUST 20 2024........SUNRISE 6:05 AM CDT SUNSET 7:44 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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