958  
CDUS43 KLOT 210633  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
132 AM CDT SUN JUL 21 2019  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 20 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 95 308 PM 101 1980 84 11 78  
MINIMUM 73 1159 PM 53 1970 64 9 70  
AVERAGE 84 74 10 74  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 3.03 1978 0.12 -0.04 0.15  
MONTH TO DATE 2.86 2.23 0.63 0.79  
SINCE JUN 1 5.91 5.68 0.23 8.42  
SINCE JAN 1 27.04 18.76 8.28 27.27  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 40 48 -8 10  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 19 9 10 9  
MONTH TO DATE 285 179 106 261  
SINCE JUN 1 415 344 71 476  
SINCE JAN 1 448 398 50 625    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 11.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 500 PM  
LOWEST 49 300 PM  
AVERAGE 68  
   
......................................................
 
 
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 84 103 1901  
MINIMUM TEMPERATURE (F) 64 51 1970  
 
 
SUNRISE AND SUNSET  
JULY 21 2019..........SUNRISE 534 AM CDT SUNSET 821 PM CDT  
JULY 22 2019..........SUNRISE 535 AM CDT SUNSET 820 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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