502  
CDUS43 KLOT 040635  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT TUE JUL 04 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 3 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 88 2:06 PM 102 1949 84 4 88  
MINIMUM 64 4:11 AM 50 1980 66 -2 68  
AVERAGE 76 75 1 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.57 1871 0.10 -0.10 0.00  
MONTH TO DATE 3.82 0.32 3.50 T  
SINCE JUN 1 6.18 4.42 1.76 2.66  
SINCE JAN 1 19.14 19.07 0.07 18.56  
 
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 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 25 31 -6 7  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 11 10 1 13  
MONTH TO DATE 30 30 0 34  
SINCE JUN 1 235 229 6 266  
SINCE JAN 1 328 299 29 411    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 2:00 AM  
LOWEST 45 2:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 102 1911  
2012  
MINIMUM TEMPERATURE (F) 66 50 1972  
 
SUNRISE AND SUNSET  
JULY 4 2023..........SUNRISE 5:21 AM CDT SUNSET 8:30 PM CDT  
JULY 5 2023..........SUNRISE 5:22 AM CDT SUNSET 8:30 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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