085  
CDUS43 KLOT 232136  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
436 PM CDT FRI MAY 23 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 23 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 65 12:28 PM 92 1921 73 -8 81  
1964  
1977  
MINIMUM 42 3:00 AM 37 1917 53 -11 58  
AVERAGE 54 63 -9 70  
 
PRECIPITATION (IN)  
TODAY 0.00 1.23 1995 0.14 -0.14 0.00  
MONTH TO DATE 1.01 3.40 -2.39 3.05  
SINCE MAR 1 6.66 9.60 -2.94 10.11  
SINCE JAN 1 9.16 13.56 -4.40 14.26  
 
SNOWFALL (IN)  
TODAY 0.0 T 1889 0.0 0.0 0.0  
MONTH TO DATE T 0.0 0.0 0.0  
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 11 5 6 0  
MONTH TO DATE 186 167 19 54  
SINCE MAR 1 1244 1443 -199 1067  
SINCE JUL 1 5379 5912 -533 4755  
 
COOLING  
TODAY 0 3 -3 5  
MONTH TO DATE 26 36 -10 62  
SINCE MAR 1 34 46 -12 71  
SINCE JAN 1 34 46 -12 71    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 4:00 AM  
LOWEST 41 12:00 PM  
AVERAGE 64  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 93 1921  
1950  
MINIMUM TEMPERATURE (F) 53 34 1992  
 
SUNRISE AND SUNSET  
MAY 23 2025...........SUNRISE 5:24 AM CDT SUNSET 8:13 PM CDT  
MAY 24 2025...........SUNRISE 5:23 AM CDT SUNSET 8:14 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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