800  
CDUS43 KLOT 300641  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
141 AM CDT TUE APR 30 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 29 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 70 12:26 AM 88 1899 64 6 59  
1970  
MINIMUM 54 11:59 PM 31 1958 45 9 43  
2008  
2018  
AVERAGE 62 55 7 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.66 2.75 1909 0.15 0.51 0.17  
MONTH TO DATE 3.47 3.60 -0.13 1.90  
SINCE MAR 1 7.06 6.05 1.01 5.70  
SINCE JAN 1 11.21 10.01 1.20 12.13  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1909 0.0 0.0 0.0  
1950  
2014  
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 3 11 -8 14  
MONTH TO DATE 368 458 -90 395  
SINCE MAR 1 1010 1266 -256 1197  
SINCE JUL 1 4698 5735 -1037 5232  
 
COOLING  
YESTERDAY 0 0 0 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 22 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1:00 AM  
LOWEST 57 7:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 91 1942  
MINIMUM TEMPERATURE (F) 45 30 1873  
 
SUNRISE AND SUNSET  
APRIL 30 2024.........SUNRISE 5:48 AM CDT SUNSET 7:50 PM CDT  
MAY 1 2024...........SUNRISE 5:47 AM CDT SUNSET 7:51 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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