129  
CDUS43 KLOT 170632  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1232 AM CST SUN FEB 17 2019  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 16 2019
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 29 302 PM 58 1921 36 -7 37  
MINIMUM 13 640 AM -10 1885 20 -7 20  
AVERAGE 21 28 -7 29  
 
PRECIPITATION (IN)  
YESTERDAY T 1.94 1883 0.07 -0.07 0.00  
MONTH TO DATE 1.69 0.91 0.78 1.62  
SINCE DEC 1 6.97 4.89 2.08 3.75  
SINCE JAN 1 3.65 2.64 1.01 3.16  
 
SNOWFALL (IN)  
YESTERDAY T 6.0 1997 0.3 -0.3 0.0  
MONTH TO DATE 3.8 5.5 -1.7 18.3  
SINCE DEC 1 23.4 24.5 -1.1 28.2  
SINCE JUL 1 36.1 25.9 10.2 28.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 44 37 7 36  
MONTH TO DATE 623 625 -2 706  
SINCE DEC 1 2962 3059 -97 3116  
SINCE JUL 1 4325 4315 10 4159  
 
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 20 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 8.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 600 AM  
LOWEST 67 300 AM  
AVERAGE 76  
   
......................................................
 
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 67 2017  
MINIMUM TEMPERATURE (F) 21 -11 1903  
 
 
SUNRISE AND SUNSET  
FEBRUARY 17 2019......SUNRISE 645 AM CST SUNSET 527 PM CST  
FEBRUARY 18 2019......SUNRISE 644 AM CST SUNSET 528 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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