166  
CDUS43 KLOT 312140  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
440 PM CDT WED MAY 31 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 31 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 89 MM 106 1934 77 12 85  
MINIMUM 60 4:46 AM 36 1897 55 5 68  
AVERAGE 75 66 9 77  
 
PRECIPITATION (IN)  
TODAY 0.00 1.54 1969 0.16 -0.16 0.01  
MONTH TO DATE 1.95 4.18 -2.23 2.54  
SINCE MAR 1 7.93 10.33 -2.40 9.94  
SINCE JAN 1 13.79 13.56 0.23 11.57  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 15.0 5.8 9.2 6.0  
SINCE JUL 1 35.5 37.1 -1.6 21.9  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 3 -3 0  
MONTH TO DATE 136 198 -62 170  
SINCE MAR 1 1486 1540 -54 1525  
SINCE JUL 1 6043 6468 -425 6114  
 
COOLING  
TODAY 10 4 6 12  
MONTH TO DATE 39 54 -15 131  
SINCE MAR 1 48 61 -13 136  
SINCE JAN 1 48 61 -13 136    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 1.8  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 6:00 AM  
LOWEST 35 2:00 PM  
AVERAGE 57  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 106 1934  
MINIMUM TEMPERATURE (F) 55 36 1897  
 
SUNRISE AND SUNSET  
MAY 31 2023...........SUNRISE 5:23 AM CDT SUNSET 8:25 PM CDT  
JUNE 1 2023..........SUNRISE 5:23 AM CDT SUNSET 8:26 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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