788  
CDUS43 KLOT 202234  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
434 PM CST THU FEB 20 2020  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 20 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 25 328 PM 70 2017 37 -12 38  
MINIMUM 9 707 AM -9 1896 22 -13 28  
AVERAGE 17 29 -12 33  
 
PRECIPITATION (IN)  
TODAY 0.00 2.10 2018 0.07 -0.07 0.09  
MONTH TO DATE 0.61 1.18 -0.57 2.04  
SINCE DEC 1 4.96 5.16 -0.20 7.32  
SINCE JAN 1 3.41 2.91 0.50 4.00  
 
SNOWFALL (IN)  
TODAY 0.0 2.8 1989 0.3 -0.3 0.2  
MONTH TO DATE 7.1 6.8 0.3 8.9  
SINCE DEC 1 16.9 25.8 -8.9 28.5  
SINCE JUL 1 25.2 27.2 -2.0 41.2  
 
DEGREE DAYS  
HEATING  
TODAY 48 36 12 32  
MONTH TO DATE 712 770 -58 775  
SINCE DEC 1 2743 3204 -461 3114  
SINCE JUL 1 4096 4460 -364 4477  
 
COOLING  
TODAY 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 17 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 10.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 58 500 AM  
LOWEST 29 200 PM  
AVERAGE 44  
   
......................................................
 
 
 
THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 67 1930  
MINIMUM TEMPERATURE (F) 22 -11 1873  
 
 
SUNRISE AND SUNSET  
FEBRUARY 20 2020......SUNRISE 641 AM CST SUNSET 530 PM CST  
FEBRUARY 21 2020......SUNRISE 640 AM CST SUNSET 531 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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