902  
CDUS43 KLOT 220632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1232 AM CST WED JAN 22 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 21 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 2 3:43 PM 62 1906 31 -29 21  
MINIMUM -8 8:02 AM -22 1984 18 -26 1  
AVERAGE -3 24 -27 11  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.49 1916 0.06 -0.06 0.00  
MONTH TO DATE 0.20 1.40 -1.20 2.22  
SINCE DEC 1 2.13 3.51 -1.38 5.19  
SINCE JAN 1 0.20 1.40 -1.20 2.22  
 
SNOWFALL (IN)  
YESTERDAY 0.0 5.0 1958 0.4 -0.4 0.0  
MONTH TO DATE 3.9 7.3 -3.4 16.1  
SINCE DEC 1 6.3 14.9 -8.6 17.3  
SINCE JUL 1 9.2 16.9 -7.7 20.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 68 40 28 54  
MONTH TO DATE 937 828 109 904  
SINCE DEC 1 1950 1897 53 1702  
SINCE JUL 1 2717 3048 -331 2666  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 12.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 7:00 AM  
LOWEST 39 4:00 PM  
AVERAGE 52  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 59 1909  
MINIMUM TEMPERATURE (F) 18 -17 1883  
1936  
 
SUNRISE AND SUNSET  
JANUARY 22 2025.......SUNRISE 7:13 AM CST SUNSET 4:54 PM CST  
JANUARY 23 2025.......SUNRISE 7:12 AM CST SUNSET 4:55 PM CST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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