787  
CDUS43 KLOT 130635  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
135 AM CDT SAT MAY 13 2023  
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 12 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 75 12:06 PM 93 2022 70 5 93  
MINIMUM 61 11:59 PM 29 1981 48 13 74  
AVERAGE 68 59 9 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.80 1.20 1912 0.13 0.67 0.00  
MONTH TO DATE 1.59 1.48 0.11 1.45  
SINCE MAR 1 7.57 7.63 -0.06 8.85  
SINCE JAN 1 13.43 10.86 2.57 10.48  
 
SNOWFALL (IN)  
YESTERDAY 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  
YESTERDAY 0 7 -7 0  
MONTH TO DATE 76 106 -30 109  
SINCE MAR 1 1426 1448 -22 1464  
SINCE JUL 1 5983 6376 -393 6053  
 
COOLING  
YESTERDAY 3 1 2 19  
MONTH TO DATE 17 9 8 57  
SINCE MAR 1 26 16 10 62  
SINCE JAN 1 26 16 10 62    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 6:00 PM  
LOWEST 45 12:00 AM  
AVERAGE 71  
   
......................................................
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 92 2022  
MINIMUM TEMPERATURE (F) 48 32 1923  
1938  
 
SUNRISE AND SUNSET  
MAY 13 2023...........SUNRISE 5:38 AM CDT SUNSET 8:08 PM CDT  
MAY 14 2023...........SUNRISE 5:37 AM CDT SUNSET 8:09 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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