816  
CDUS43 KLOT 160648  
CLIORD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
148 AM CDT WED APR 16 2025  
   
...............................  
 
   
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 15 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1871 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 56 MM 88 2002 59 -3 76  
MINIMUM 38 6:07 AM 25 1943 40 -2 48  
AVERAGE 47 49 -2 62  
 
PRECIPITATION (IN)  
YESTERDAY T 1.74 1884 0.12 -0.12 0.00  
MONTH TO DATE 1.50 1.68 -0.18 1.65  
SINCE MAR 1 4.49 4.13 0.36 5.24  
SINCE JAN 1 6.99 8.09 -1.10 9.39  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.7 2020 0.0 0.0 0.0  
MONTH TO DATE T 0.9 -0.9 T  
SINCE MAR 1 2.8 6.4 -3.6 1.0  
SINCE JUL 1 17.6 38.0 -20.4 22.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 16 2 3  
MONTH TO DATE 293 274 19 211  
SINCE MAR 1 923 1082 -159 853  
SINCE JUL 1 5058 5551 -493 4541  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE MAR 1 0 2 -2 2  
SINCE JAN 1 0 2 -2 2    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 14.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 6:00 AM  
LOWEST 36 6:00 PM  
AVERAGE 61  
   
......................................................  
 
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 87 2002  
MINIMUM TEMPERATURE (F) 40 18 1875  
 
SUNRISE AND SUNSET  
APRIL 16 2025.........SUNRISE 6:09 AM CDT SUNSET 7:34 PM CDT  
APRIL 17 2025.........SUNRISE 6:08 AM CDT SUNSET 7:35 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