845  
CDUS43 KLOT 152136  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CDT WED AUG 15 2018  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR AUGUST 15 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 85 254 PM 98 1944 82 3 84  
MINIMUM 74 600 AM 48 2004 63 11 68  
AVERAGE 80 73 7 76  
 
PRECIPITATION (IN)  
TODAY 0.00 1.87 1993 0.18 -0.18 0.00  
MONTH TO DATE 3.13 2.47 0.66 1.83  
SINCE JUN 1 11.90 9.62 2.28 12.95  
SINCE JAN 1 30.75 22.70 8.05 31.06  
 
SNOWFALL (IN)  
TODAY 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 T  
SINCE JUL 1 0.0 0.0 0.0 T  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 3  
SINCE JUN 1 10 52 -42 6  
SINCE JUL 1 0 4 -4 3  
 
COOLING  
TODAY 15 8 7 11  
MONTH TO DATE 202 127 75 101  
SINCE JUN 1 774 575 199 637  
SINCE JAN 1 923 629 294 670    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 700 AM  
LOWEST 55 1200 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 98 1988  
1983  
MINIMUM TEMPERATURE (F) 63 48 2004  
 
 
SUNRISE AND SUNSET  
AUGUST 15 2018........SUNRISE 600 AM CDT SUNSET 752 PM CDT  
AUGUST 16 2018........SUNRISE 601 AM CDT SUNSET 750 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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