819  
CDUS43 KLOT 180633  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1233 AM CST THU JAN 18 2024  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR JANUARY 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 17 11:54 PM 53 1990 29 -12 44  
MINIMUM -6 3:08 AM -25 1982 14 -20 35  
AVERAGE 6 21 -15 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 0.60 1941 0.05 -0.04 T  
MONTH TO DATE 1.59 0.91 0.68 0.89  
SINCE DEC 1 4.72 2.84 1.88 3.45  
SINCE JAN 1 1.59 0.91 0.68 0.89  
 
SNOWFALL (IN)  
YESTERDAY T 4.7 1953 0.4 -0.4 0.0  
MONTH TO DATE 14.0 5.8 8.2 0.7  
SINCE DEC 1 16.8 15.2 1.6 4.0  
SINCE JUL 1 18.3 17.7 0.6 6.3  
SNOW DEPTH 8  
 
DEGREE DAYS  
HEATING  
YESTERDAY 59 44 15 25  
MONTH TO DATE 754 729 25 533  
SINCE DEC 1 1637 1899 -262 1729  
SINCE JUL 1 2854 3215 -361 3005  
 
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 16 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 7.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 2:00 AM  
LOWEST 63 1:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 29 57 1996  
MINIMUM TEMPERATURE (F) 14 -23 1994  
 
SUNRISE AND SUNSET  
JANUARY 18 2024.......SUNRISE 7:21 AM CST SUNSET 4:53 PM CST  
JANUARY 19 2024.......SUNRISE 7:21 AM CST SUNSET 4:54 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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