511  
CDUS43 KLOT 242138  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
436 PM CDT THU SEP 24 2020  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 24 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 79 250 PM 93 2017 72 7 79  
MINIMUM 58 627 AM 35 1989 51 7 58  
1985  
1942  
AVERAGE 69 61 8 69  
 
PRECIPITATION (IN)  
TODAY 0.00 1.85 1977 0.11 -0.11 0.00  
MONTH TO DATE 2.78 2.61 0.17 4.57  
SINCE SEP 1 2.78 2.61 0.17 4.57  
SINCE JAN 1 30.90 27.74 3.16 36.32  
 
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 SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
 
DEGREE DAYS  
HEATING  
TODAY 0 6 -6 0  
MONTH TO DATE 33 65 -32 2  
SINCE SEP 1 33 65 -32 2  
SINCE JUL 1 33 78 -45 2  
 
COOLING  
TODAY 4 2 2 4  
MONTH TO DATE 90 86 4 137  
SINCE SEP 1 90 86 4 137  
SINCE JAN 1 1272 826 446 933    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 700 AM  
LOWEST 45 200 PM  
AVERAGE 66  
   
......................................................
 
 
 
THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 92 2017  
MINIMUM TEMPERATURE (F) 50 30 1942  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2020.....SUNRISE 642 AM CDT SUNSET 644 PM CDT  
SEPTEMBER 25 2020.....SUNRISE 643 AM CDT SUNSET 643 PM CDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page