677  
CDUS43 KGRR 130523  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN  
123 AM EDT FRI SEP 13 2024  
   
...............................
 
 
   
..THE GRAND RAPIDS CLIMATE SUMMARY FOR SEPTEMBER 12 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1892 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 3:56 PM 95 1952 76 10 69  
MINIMUM 55 6:14 AM 37 1964 55 0 52  
AVERAGE 71 65 6 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.54 1896 0.10 -0.10 T  
MONTH TO DATE 0.26 1.30 -1.04 1.21  
SINCE SEP 1 0.26 1.30 -1.04 1.21  
SINCE JAN 1 28.02 27.67 0.35 27.63  
 
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 SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 4  
MONTH TO DATE 30 21 9 18  
SINCE SEP 1 30 21 9 18  
SINCE JUL 1 45 38 7 32  
 
COOLING  
YESTERDAY 6 3 3 0  
MONTH TO DATE 24 43 -19 60  
SINCE SEP 1 24 43 -19 60  
SINCE JAN 1 678 695 -17 628    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (130)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE 686 MINUTES / 91 PERCENT  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 3:00 AM  
LOWEST 35 5:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE GRAND RAPIDS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 95 1939  
1952  
MINIMUM TEMPERATURE (F) 54 35 1975  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2024.....SUNRISE 7:20 AM EDT SUNSET 7:55 PM EDT  
SEPTEMBER 14 2024.....SUNRISE 7:21 AM EDT SUNSET 7:53 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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