253  
CDUS43 KLOT 240632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT WED MAY 24 2023  
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 23 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 2:04 PM 92 1921 73 13 61  
1964  
1977  
MINIMUM 57 4:42 AM 37 1917 53 4 45  
AVERAGE 72 63 9 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.23 1995 0.14 -0.14 0.00  
MONTH TO DATE 0.42 3.40 -2.98 3.11  
SINCE MAR 1 6.24 9.60 -3.36 12.11  
SINCE JAN 1 12.67 13.56 -0.89 15.54  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1889 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 2.3 6.8 -4.5 4.2  
SINCE JUL 1 20.2 38.4 -18.2 32.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 12  
MONTH TO DATE 113 167 -54 156  
SINCE MAR 1 1331 1443 -112 1436  
SINCE JUL 1 5366 5912 -546 5653  
 
COOLING  
YESTERDAY 7 3 4 0  
MONTH TO DATE 36 36 0 95  
SINCE MAR 1 61 46 15 98  
SINCE JAN 1 61 46 15 98    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 60 5:00 AM  
LOWEST 21 4:00 PM  
AVERAGE 41  
   
......................................................
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 93 1921  
1950  
MINIMUM TEMPERATURE (F) 53 34 1992  
 
SUNRISE AND SUNSET  
MAY 24 2023...........SUNRISE 5:24 AM CDT SUNSET 8:14 PM CDT  
MAY 25 2023...........SUNRISE 5:23 AM CDT SUNSET 8:15 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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