200  
CDUS43 KLOT 262137  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
437 PM CDT FRI MAY 26 2017  
 
   
...............................
 
 
   
..THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 26 2017
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 71 940 AM 94 1911 73 -2 83  
MINIMUM 52 446 AM 34 1983 51 1 62  
AVERAGE 62 62 0 73  
 
PRECIPITATION (IN)  
TODAY 0.03 1.78 1913 0.11 -0.08 0.00  
MONTH TO DATE 2.78 3.08 -0.30 4.61  
SINCE MAR 1 13.22 8.96 4.26 10.75  
SINCE JAN 1 17.61 12.48 5.13 12.82  
 
SNOWFALL (IN)  
TODAY 0.0 T 1889 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 7.8 6.8 1.0 3.7  
SINCE JUL 1 26.1 36.3 -10.2 31.2  
 
DEGREE DAYS  
HEATING  
TODAY 3 5 -2 0  
MONTH TO DATE 232 203 29 225  
SINCE MAR 1 1356 1536 -180 1407  
SINCE JUL 1 5281 6270 -989 5415  
 
COOLING  
TODAY 0 2 -2 8  
MONTH TO DATE 18 32 -14 26  
SINCE MAR 1 30 42 -12 33  
SINCE JAN 1 30 42 -12 33    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 5.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 400 AM  
LOWEST 57 1000 AM  
AVERAGE 73  
   
......................................................
 
 
 
THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 97 2012  
MINIMUM TEMPERATURE (F) 52 33 1992  
 
 
SUNRISE AND SUNSET  
MAY 26 2017...........SUNRISE 522 AM CDT SUNSET 816 PM CDT  
MAY 27 2017...........SUNRISE 521 AM CDT SUNSET 817 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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