611  
CDUS43 KLOT 220631  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
131 AM CDT WED MAY 22 2024  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 21 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 89 3:55 PM 92 1934 72 17 81  
1977  
MINIMUM 61 4:38 AM 31 2002 52 9 54  
AVERAGE 75 62 13 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.96 2018 0.15 -0.15 0.00  
MONTH TO DATE 3.05 3.11 -0.06 0.42  
SINCE MAR 1 10.11 9.31 0.80 6.24  
SINCE JAN 1 14.26 13.27 0.99 12.67  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1969 0.0 0.0 0.0  
2004  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 1.0 6.8 -5.8 2.3  
SINCE JUL 1 22.2 38.4 -16.2 20.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 0  
MONTH TO DATE 54 157 -103 113  
SINCE MAR 1 1067 1433 -366 1331  
SINCE JUL 1 4755 5902 -1147 5366  
 
COOLING  
YESTERDAY 10 2 8 3  
MONTH TO DATE 51 30 21 25  
SINCE MAR 1 60 40 20 50  
SINCE JAN 1 60 40 20 50    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 15.2  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 1:00 AM  
LOWEST 41 3:00 PM  
AVERAGE 64  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 94 1925  
MINIMUM TEMPERATURE (F) 53 36 2006  
 
SUNRISE AND SUNSET  
MAY 22 2024...........SUNRISE 5:25 AM CDT SUNSET 8:13 PM CDT  
MAY 23 2024...........SUNRISE 5:24 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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