458  
CDUS43 KLOT 202233  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CST TUE FEB 20 2018  
 
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR FEBRUARY 20 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1928 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
...........................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 66 103 PM 69 2017 37 29  
MINIMUM 55 359 PM -9 1929 23 32  
AVERAGE 61 30 31  
 
PRECIPITATION (IN)  
TODAY 1.90R 1.35 1997 0.08 1.82  
1891  
MONTH TO DATE 3.61 1.28 2.33  
SINCE DEC 1 4.69 5.91 -1.22  
SINCE JAN 1 4.52 3.34 1.18  
 
DEGREE DAYS  
HEATING  
TODAY 4 35 -31  
MONTH TO DATE 768 748 20  
SINCE DEC 1 3114 3109 5  
SINCE JUL 1 4097 4244 -147  
 
COOLING  
TODAY 0 0 0  
MONTH TO DATE 0 0 0  
SINCE DEC 1 0 0 0  
SINCE JAN 1 0 0 0    
...........................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 12.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
   
......................................................
 
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 66 1930  
MINIMUM TEMPERATURE (F) 23 -6 1963  
 
 
SUNRISE AND SUNSET  
FEBRUARY 20 2018......SUNRISE 639 AM CST SUNSET 530 PM CST  
FEBRUARY 21 2018......SUNRISE 638 AM CST SUNSET 532 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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