818  
CDUS43 KLOT 172232  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
432 PM CST MON FEB 17 2025  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR FEBRUARY 17 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 12 1:31 PM 67 2017 37 -25 30  
MINIMUM 4 7:55 AM -10 1936 23 -19 14  
AVERAGE 8 30 -22 22  
 
PRECIPITATION (IN)  
TODAY 0.00 0.84 2008 0.05 -0.05 T  
MONTH TO DATE 0.16 0.80 -0.64 0.20  
SINCE DEC 1 3.25 4.07 -0.82 5.16  
SINCE JAN 1 1.32 2.28 -0.96 2.49  
 
DEGREE DAYS  
HEATING  
TODAY 57 35 22 43  
MONTH TO DATE 633 627 6 454  
SINCE DEC 1 2861 2878 -17 2358  
SINCE JUL 1 3567 3962 -395 3310  
 
COOLING  
TODAY 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 20 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 13.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 63 8:00 AM  
LOWEST 41 4:00 PM  
AVERAGE 52  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 70 2017  
MINIMUM TEMPERATURE (F) 23 -16 1936  
 
SUNRISE AND SUNSET  
FEBRUARY 17 2025......SUNRISE 6:43 AM CST SUNSET 5:27 PM CST  
FEBRUARY 18 2025......SUNRISE 6:42 AM CST SUNSET 5:28 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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