663  
CDUS43 KGRR 200521  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN  
121 AM EDT FRI SEP 20 2024  
   
...............................  
 
   
..THE GRAND RAPIDS CLIMATE SUMMARY FOR SEPTEMBER 19 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 2:02 PM 91 1908 73 13 68  
MINIMUM 58 7:00 AM 36 1929 52 6 44  
1979  
2020  
AVERAGE 72 62 10 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.73 1988 0.12 -0.12 T  
MONTH TO DATE 0.26 2.09 -1.83 1.21  
SINCE SEP 1 0.26 2.09 -1.83 1.21  
SINCE JAN 1 28.02 28.46 -0.44 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 5 -5 9  
MONTH TO DATE 30 48 -18 61  
SINCE SEP 1 30 48 -18 61  
SINCE JUL 1 45 65 -20 75  
 
COOLING  
YESTERDAY 7 2 5 0  
MONTH TO DATE 68 58 10 60  
SINCE SEP 1 68 58 10 60  
SINCE JAN 1 722 710 12 628    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (130)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 3.1  
 
SKY COVER  
POSSIBLE SUNSHINE 79 PERCENT / 581 MINUTES  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 35 4:00 PM  
AVERAGE 64  
   
......................................................  
 
THE GRAND RAPIDS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 90 1931  
MINIMUM TEMPERATURE (F) 51 33 1956  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2024.....SUNRISE 7:28 AM EDT SUNSET 7:42 PM EDT  
SEPTEMBER 21 2024.....SUNRISE 7:29 AM EDT SUNSET 7:40 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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