069  
CDUS43 KLOT 202139  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
438 PM CDT FRI APR 20 2018  
 
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR APRIL 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 61 120 PM 87 1987 61 0  
MINIMUM 33 523 AM 27 1983 43 -10  
AVERAGE 47 52 -5  
 
PRECIPITATION (IN)  
TODAY 0.00 1.27 2000 0.12 -0.12  
MONTH TO DATE 1.40 2.39 -0.99  
SINCE MAR 1 2.75 5.11 -2.36  
SINCE JAN 1 8.04 9.11 -1.07  
 
DEGREE DAYS  
HEATING  
TODAY 18 13 5  
MONTH TO DATE 531 335 196  
SINCE MAR 1 1371 1147 224  
SINCE JUL 1 5662 5658 4  
 
COOLING  
TODAY 0 1 -1  
MONTH TO DATE 0 2 -2  
SINCE MAR 1 0 3 -3  
SINCE JAN 1 0 3 -3    
...........................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
   
......................................................
 
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 86 1985  
MINIMUM TEMPERATURE (F) 44 28 1943  
 
 
SUNRISE AND SUNSET  
APRIL 20 2018.........SUNRISE 603 AM CDT SUNSET 737 PM CDT  
APRIL 21 2018.........SUNRISE 602 AM CDT SUNSET 738 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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