639  
CDUS43 KLOT 242135  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
435 PM CDT MON MAR 24 2025  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 24 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 49 2:59 PM 82 2017 50 -1 48  
MINIMUM 33 7:59 AM 5 1974 33 0 33  
AVERAGE 41 42 -1 41  
 
PRECIPITATION (IN)  
TODAY 0.00 1.26 1969 0.07 -0.07 0.00  
MONTH TO DATE 2.80 1.85 0.95 2.29  
SINCE MAR 1 2.80 1.85 0.95 2.29  
SINCE JAN 1 5.30 5.81 -0.51 6.44  
 
SNOWFALL (IN)  
TODAY 0.0 4.5 1947 0.1 -0.1 0.0  
MONTH TO DATE 2.8 4.8 -2.0 1.0  
SINCE MAR 1 2.8 4.8 -2.0 1.0  
SINCE JUL 1 17.6 36.4 -18.8 22.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 24 23 1 24  
MONTH TO DATE 528 654 -126 502  
SINCE MAR 1 528 654 -126 502  
SINCE JUL 1 4663 5123 -460 4190  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 19.2  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 67 12:00 AM  
LOWEST 34 3:00 PM  
AVERAGE 51  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 79 2007  
MINIMUM TEMPERATURE (F) 34 12 1940  
1974  
 
SUNRISE AND SUNSET  
MARCH 24 2025.........SUNRISE 6:47 AM CDT SUNSET 7:09 PM CDT  
MARCH 25 2025.........SUNRISE 6:46 AM CDT SUNSET 7:10 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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