463  
CDUS43 KLOT 100635  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT WED MAY 10 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 9 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 4:42 PM 96 1934 69 3 83  
MINIMUM 46 2:13 AM 27 1966 47 -1 56  
AVERAGE 59 58 1 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.92 2000 0.13 -0.13 0.00  
MONTH TO DATE 0.79 1.10 -0.31 1.37  
SINCE MAR 1 6.77 7.25 -0.48 8.77  
SINCE JAN 1 12.63 10.48 2.15 10.40  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1966 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 15.0 5.8 9.2 6.0  
SINCE JUL 1 35.5 37.1 -1.6 21.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 8 -2 0  
MONTH TO DATE 73 83 -10 109  
SINCE MAR 1 1423 1425 -2 1464  
SINCE JUL 1 5980 6353 -373 6053  
 
COOLING  
YESTERDAY 0 1 -1 5  
MONTH TO DATE 12 6 6 5  
SINCE MAR 1 21 13 8 10  
SINCE JAN 1 21 13 8 10    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 2.9  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 51 1:00 PM  
AVERAGE 76  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 69 92 2022  
MINIMUM TEMPERATURE (F) 47 24 1966  
 
SUNRISE AND SUNSET  
MAY 10 2023...........SUNRISE 5:41 AM CDT SUNSET 8:05 PM CDT  
MAY 11 2023...........SUNRISE 5:40 AM CDT SUNSET 8:06 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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