840  
CDUS43 KLOT 180637  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT FRI SEP 18 2020  
 
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 17 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1905 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 73 145 PM 93 1988 75 -2 81  
1927  
MINIMUM 53 1159 PM 35 1916 52 1 62  
AVERAGE 63 64 -1 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.21 1970 0.12 -0.12 0.00  
MONTH TO DATE 6.08 1.95 4.13 7.16  
SINCE SEP 1 6.08 1.95 4.13 7.16  
SINCE JAN 1 28.42 27.61 0.81 40.30  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 4 -2 0  
MONTH TO DATE 36 36 0 7  
SINCE SEP 1 36 36 0 7  
SINCE JUL 1 36 50 -14 8  
 
COOLING  
YESTERDAY 0 2 -2 7  
MONTH TO DATE 45 65 -20 77  
SINCE SEP 1 45 65 -20 77  
SINCE JAN 1 1022 792 230 860    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 9.6  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 400 AM  
LOWEST 42 500 PM  
AVERAGE 68  
   
......................................................
 
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 92 1920  
MINIMUM TEMPERATURE (F) 51 32 1929  
1916  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2020.....SUNRISE 640 AM CDT SUNSET 700 PM CDT  
SEPTEMBER 19 2020.....SUNRISE 641 AM CDT SUNSET 658 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