135  
CDUS43 KLOT 282135  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT MON APR 28 2025  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 28 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 83 2:59 PM 86 1915 64 19 75  
MINIMUM 53 4:46 AM 28 1992 45 8 59  
AVERAGE 68 54 14 67  
 
PRECIPITATION (IN)  
TODAY 0.00 2.04 1981 0.15 -0.15 0.36  
MONTH TO DATE 2.66 3.45 -0.79 2.81  
SINCE MAR 1 5.65 5.90 -0.25 6.40  
SINCE JAN 1 8.15 9.86 -1.71 10.55  
 
SNOWFALL (IN)  
TODAY 0.0 T 1950 0.0 0.0 0.0  
1961  
2008  
MONTH TO DATE T 1.3 -1.3 T  
SINCE MAR 1 2.8 6.8 -4.0 1.0  
SINCE JUL 1 17.6 38.4 -20.8 22.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 11 -11 0  
MONTH TO DATE 415 447 -32 365  
SINCE MAR 1 1045 1255 -210 1007  
SINCE JUL 1 5180 5724 -544 4695  
 
COOLING  
TODAY 3 0 3 2  
MONTH TO DATE 7 0 7 9  
SINCE MAR 1 7 2 5 9  
SINCE JAN 1 7 2 5 9    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 12.9  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 59 3:00 AM  
LOWEST 45 9:00 AM  
AVERAGE 52  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 88 1899  
1970  
MINIMUM TEMPERATURE (F) 45 31 1958  
2008  
2018  
 
SUNRISE AND SUNSET  
APRIL 28 2025.........SUNRISE 5:51 AM CDT SUNSET 7:47 PM CDT  
APRIL 29 2025.........SUNRISE 5:50 AM CDT SUNSET 7:49 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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