429  
CDUS43 KLOT 230634  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST FRI FEB 23 2018  
 
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR FEBRUARY 22 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1905 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 40 227 PM 70 2017 37 3 70  
MINIMUM 25 144 AM -17 1936 20 5 42  
AVERAGE 33 28 5 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 1.39 1981 0.06 -0.04 0.00  
MONTH TO DATE 3.12 1.04 2.08 0.49  
SINCE DEC 1 4.95 4.39 0.56 4.62  
SINCE JAN 1 4.46 2.41 2.05 2.74  
 
SNOWFALL (IN)  
YESTERDAY 0.0 7.0 1974 0.2 -0.2 0.0  
MONTH TO DATE 17.4 6.3 11.1 T  
SINCE DEC 1 28.1 27.8 0.3 16.8  
SINCE JUL 1 28.3 29.6 -1.3 16.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 37 -5 9  
MONTH TO DATE 978 881 97 624  
SINCE DEC 1 3576 3455 121 3047  
SINCE JUL 1 4790 4790 0 3916  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.8  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 1000 PM  
LOWEST 64 300 PM  
AVERAGE 73  
   
......................................................
 
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 63 1930  
MINIMUM TEMPERATURE (F) 20 -12 1910  
 
 
SUNRISE AND SUNSET  
FEBRUARY 23 2018......SUNRISE 641 AM CST SUNSET 539 PM CST  
FEBRUARY 24 2018......SUNRISE 639 AM CST SUNSET 540 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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