136  
CDUS43 KLOT 302133  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT TUE APR 30 2024  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 30 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 73 2:49 PM 91 1942 65 8 48  
MINIMUM 50 5:46 AM 30 1873 45 5 40  
AVERAGE 62 55 7 44  
 
PRECIPITATION (IN)  
TODAY 0.00 2.22 2003 0.15 -0.15 0.12  
MONTH TO DATE 3.47 3.75 -0.28 2.02  
SINCE MAR 1 7.06 6.20 0.86 5.82  
SINCE JAN 1 11.21 10.16 1.05 12.25  
 
SNOWFALL (IN)  
TODAY 0.0 0.1 1907 0.0 0.0 0.0  
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  
TODAY 3 10 -7 21  
MONTH TO DATE 371 468 -97 416  
SINCE MAR 1 1013 1276 -263 1218  
SINCE JUL 1 4701 5745 -1044 5253  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 9 8 1 25  
SINCE MAR 1 9 10 -1 25  
SINCE JAN 1 9 10 -1 25    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 3:00 AM  
LOWEST 45 2:00 PM  
AVERAGE 63  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 90 1951  
MINIMUM TEMPERATURE (F) 46 30 1943  
 
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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