558  
CDUS43 KLOT 100636  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT FRI MAY 10 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 9 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 63 2:04 AM 94 1934 68 -5 70  
MINIMUM 49 11:59 PM 27 1983 48 1 46  
AVERAGE 56 58 -2 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.51 3.14 1990 0.15 0.36 0.00  
MONTH TO DATE 2.31 1.32 0.99 0.29  
SINCE MAR 1 9.37 7.52 1.85 6.11  
SINCE JAN 1 13.52 11.48 2.04 12.54  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.1 1923 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 1.0 6.8 -5.8 2.3  
SINCE JUL 1 22.2 38.4 -16.2 20.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 8 1 7  
MONTH TO DATE 28 81 -53 77  
SINCE MAR 1 1041 1357 -316 1295  
SINCE JUL 1 4729 5826 -1097 5330  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 8 9 -1 14  
SINCE MAR 1 17 19 -2 39  
SINCE JAN 1 17 19 -2 39    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 AM  
LOWEST 56 2:00 AM  
AVERAGE 77  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 90 2011  
MINIMUM TEMPERATURE (F) 49 28 1983  
 
SUNRISE AND SUNSET  
MAY 10 2024...........SUNRISE 5:36 AM CDT SUNSET 8:01 PM CDT  
MAY 11 2024...........SUNRISE 5:35 AM CDT SUNSET 8:02 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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