042  
CDUS43 KLOT 150635  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1235 AM CST WED JAN 15 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 14 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 16 3:53 PM 60 1928 31 -15 3  
MINIMUM 8 11:59 PM -14 1979 19 -11 -10  
AVERAGE 12 25 -13 -3  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.10 1871 0.07 -0.06 T  
MONTH TO DATE 0.19 0.95 -0.76 2.12  
SINCE DEC 1 2.12 3.06 -0.94 5.09  
SINCE JAN 1 0.19 0.95 -0.76 2.12  
 
SNOWFALL (IN)  
YESTERDAY 0.7 6.3 1929 0.4 0.3 T  
MONTH TO DATE 3.6 4.6 -1.0 14.2  
SINCE DEC 1 6.0 12.2 -6.2 15.4  
SINCE JUL 1 8.9 14.2 -5.3 18.1  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 53 40 13 68  
MONTH TO DATE 596 548 48 506  
SINCE DEC 1 1609 1617 -8 1304  
SINCE JUL 1 2376 2768 -392 2268  
 
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 NW (320)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 9.1  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
BLOWING SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 6:00 AM  
LOWEST 48 2:00 PM  
AVERAGE 66  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 60 1949  
MINIMUM TEMPERATURE (F) 19 -19 1979  
 
SUNRISE AND SUNSET  
JANUARY 15 2025.......SUNRISE 7:17 AM CST SUNSET 4:46 PM CST  
JANUARY 16 2025.......SUNRISE 7:16 AM CST SUNSET 4:47 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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