348  
CDUS43 KLOT 172141  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
441 PM CDT SUN MAY 17 2026  
   
...............................  
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 17 2026  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1905 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 84 2:44 PM 91 1934 72 12 70  
MINIMUM 64 3:41 AM 32 1930 50 14 51  
AVERAGE 74 61 13 61  
 
PRECIPITATION (IN)  
TODAY 0.00 2.25 1969 0.14 -0.14 0.00  
MONTH TO DATE 0.16 2.13 -1.97 0.94  
SINCE MAR 1 9.68 8.28 1.40 5.92  
SINCE JAN 1 10.62 11.51 -0.89 7.17  
 
SNOWFALL (IN)  
TODAY 0.0 T 2017 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 T  
SINCE MAR 1 6.8 5.8 1.0 4.2  
SINCE JUL 1 30.8 37.1 -6.3 17.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 6 -6 4  
MONTH TO DATE 193 138 55 95  
SINCE MAR 1 1237 1480 -243 1219  
SINCE JUL 1 6061 6408 -347 5814  
 
COOLING  
TODAY 9 2 7 0  
MONTH TO DATE 18 17 1 34  
SINCE MAR 1 33 24 9 38  
SINCE JAN 1 33 24 9 38    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 6:00 AM  
LOWEST 51 2:00 PM  
AVERAGE 69  
   
......................................................  
 
THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 94 1934  
MINIMUM TEMPERATURE (F) 50 31 2002  
 
SUNRISE AND SUNSET  
MAY 17 2026...........SUNRISE 5:33 AM CDT SUNSET 8:13 PM CDT  
MAY 18 2026...........SUNRISE 5:32 AM CDT SUNSET 8:14 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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