687  
CDUS43 KLOT 290634  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
1234 AM CST FRI DEC 29 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 28 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 36 11:59 PM 66 1984 31 5 43  
MINIMUM 31 2:38 AM -21 1924 17 14 21  
AVERAGE 34 24 10 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.34 1.25 2015 0.06 0.28 0.00  
MONTH TO DATE 3.08 1.77 1.31 2.56  
SINCE DEC 1 3.08 1.77 1.31 2.56  
SINCE JAN 1 32.41 37.08 -4.67 39.47  
 
SNOWFALL (IN)  
YESTERDAY 1.5 8.0 1987 0.3 1.2 0.0  
MONTH TO DATE 2.4 8.4 -6.0 3.3  
SINCE DEC 1 2.4 8.4 -6.0 3.3  
SINCE JUL 1 3.9 10.9 -7.0 5.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 31 41 -10 33  
MONTH TO DATE 777 1046 -269 1117  
SINCE DEC 1 777 1046 -269 1117  
SINCE JUL 1 1994 2362 -368 2393  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 805 839 -34 978    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 11.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 PM  
LOWEST 75 2:00 AM  
AVERAGE 86  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 31 65 1984  
MINIMUM TEMPERATURE (F) 17 -11 1917  
1925  
1976  
 
SUNRISE AND SUNSET  
DECEMBER 29 2023......SUNRISE 7:25 AM CST SUNSET 4:32 PM CST  
DECEMBER 30 2023......SUNRISE 7:25 AM CST SUNSET 4:33 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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