538  
CDUS43 KLOT 180641  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
141 AM CDT THU APR 18 2024  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR APRIL 17 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 3:44 AM 86 1977 60 6 40  
MINIMUM 47 11:54 PM 22 2022 39 8 30  
AVERAGE 57 50 7 35  
 
PRECIPITATION (IN)  
YESTERDAY 0.17 3.06 2013 0.13 0.04 0.02  
MONTH TO DATE 2.86 2.02 0.84 2.15  
SINCE MAR 1 7.44 4.42 3.02 5.45  
SINCE JAN 1 10.01 7.65 2.36 11.31  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.0 2020 0.0 0.0 0.5  
MONTH TO DATE 0.5 0.6 -0.1 0.7  
SINCE MAR 1 6.1 5.5 0.6 14.8  
SINCE JUL 1 27.3 36.8 -9.5 35.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 16 -8 30  
MONTH TO DATE 244 314 -70 235  
SINCE MAR 1 923 1174 -251 1106  
SINCE JUL 1 5097 6102 -1005 5663  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 8 0 8 9  
SINCE MAR 1 8 2 6 9  
SINCE JAN 1 8 2 6 9    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 15.4  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 64 5:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 91 2002  
MINIMUM TEMPERATURE (F) 39 22 1983  
1990  
 
SUNRISE AND SUNSET  
APRIL 18 2024.........SUNRISE 6:10 AM CDT SUNSET 7:42 PM CDT  
APRIL 19 2024.........SUNRISE 6:09 AM CDT SUNSET 7:43 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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