498  
CDUS43 KLOT 220636  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1236 AM CST WED NOV 22 2017  
 
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR NOVEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1905 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 47 119 AM 73 1913 44 3 42  
MINIMUM 22 1058 PM -2 1895 28 -6 19  
AVERAGE 35 36 -1 31  
 
PRECIPITATION (IN)  
YESTERDAY T 1.15 1934 0.08 -0.08 0.00  
MONTH TO DATE 1.03 1.83 -0.80 0.68  
SINCE SEP 1 7.39 7.85 -0.46 5.37  
SINCE JAN 1 44.18 33.51 10.67 31.29  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.9 2015 0.1 -0.1 0.0  
MONTH TO DATE 0.2 0.6 -0.4 T  
SINCE SEP 1 0.2 0.7 -0.5 T  
SINCE JUL 1 0.2 0.7 -0.5 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 29 1 34  
MONTH TO DATE 599 499 100 342  
SINCE SEP 1 982 1038 -56 639  
SINCE JUL 1 989 1052 -63 639  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 4  
SINCE SEP 1 144 93 51 186  
SINCE JAN 1 828 820 8 1103    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 13.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 1100 PM  
LOWEST 37 1000 AM  
AVERAGE 54  
   
......................................................
 
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 44 69 2010  
MINIMUM TEMPERATURE (F) 27 -1 1929  
 
 
SUNRISE AND SUNSET  
NOVEMBER 22 2017......SUNRISE 656 AM CST SUNSET 429 PM CST  
NOVEMBER 23 2017......SUNRISE 657 AM CST SUNSET 429 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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