660  
CDUS43 KLOT 290640  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
140 AM CDT MON APR 29 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 28 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 75 1:44 PM 86 1915 64 11 63  
MINIMUM 59 10:13 AM 28 1992 45 14 45  
AVERAGE 67 54 13 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.36 2.04 1981 0.15 0.21 0.00  
MONTH TO DATE 2.81 3.45 -0.64 1.73  
SINCE MAR 1 6.40 5.90 0.50 5.53  
SINCE JAN 1 10.55 9.86 0.69 11.96  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1950 0.0 0.0 0.0  
1961  
2008  
MONTH TO DATE T 1.3 -1.3 0.5  
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 0 11 -11 11  
MONTH TO DATE 365 447 -82 381  
SINCE MAR 1 1007 1255 -248 1183  
SINCE JUL 1 4695 5724 -1029 5218  
 
COOLING  
YESTERDAY 2 0 2 0  
MONTH TO DATE 9 0 9 25  
SINCE MAR 1 9 2 7 25  
SINCE JAN 1 9 2 7 25    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 9.9  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 5:00 AM  
LOWEST 60 2:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 88 1899  
1970  
MINIMUM TEMPERATURE (F) 45 31 1958  
2008  
2018  
 
SUNRISE AND SUNSET  
APRIL 29 2024.........SUNRISE 5:50 AM CDT SUNSET 7:49 PM CDT  
APRIL 30 2024.........SUNRISE 5:48 AM CDT SUNSET 7:50 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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