575  
CDUS43 KLOT 252138  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT FRI APR 25 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 22 2025  
 
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)  
YESTERDAY  
MAXIMUM 74 4:19 PM 91 1980 62 12 67  
MINIMUM 41 5:04 AM 24 1986 43 -2 41  
AVERAGE 58 52 6 54  
 
PRECIPITATION (IN)  
YESTERDAY T 1.55 1981 0.13 -0.13 T  
MONTH TO DATE 1.99 2.61 -0.62 2.04  
SINCE MAR 1 4.98 5.06 -0.08 5.63  
SINCE JAN 1 7.48 9.02 -1.54 9.78  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.2 1893 0.0 0.0 0.0  
MONTH TO DATE T 1.1 -1.1 T  
SINCE MAR 1 2.8 6.6 -3.8 1.0  
SINCE JUL 1 17.6 38.2 -20.6 22.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 13 -6 11  
MONTH TO DATE 373 374 -1 298  
SINCE MAR 1 1003 1182 -179 940  
SINCE JUL 1 5138 5651 -513 4628  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 3 0 3 3  
SINCE MAR 1 3 2 1 3  
SINCE JAN 1 3 2 1 3    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
AVERAGE SKY COVER MM  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST MM  
LOWEST MM  
AVERAGE MM  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 88 1960  
MINIMUM TEMPERATURE (F) 43 25 1873  
1986  
 
SUNRISE AND SUNSET  
APRIL 23 2025.........SUNRISE 5:58 AM CDT SUNSET 7:42 PM CDT  
APRIL 24 2025.........SUNRISE 5:57 AM CDT SUNSET 7:43 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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