613  
CDUS43 KGRR 221350  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
948 AM EDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE GRAND RAPIDS MI CLIMATE SUMMARY FOR SEPTEMBER 22 2017
 
 
VALID AS OF 0900 AM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1892 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 72 759 AM 90 1920 70 2 83  
MINIMUM 66 642 AM 33 1976 50 16 62  
AVERAGE 69 60 9 73  
 
PRECIPITATION (IN)  
TODAY 0.00 3.14 1988 0.15 -0.15 0.00  
MONTH TO DATE 0.56 3.16 -2.60 1.52  
SINCE SEP 1 0.56 3.16 -2.60 1.52  
SINCE JAN 1 24.88 27.88 -3.00 33.06  
 
SNOWFALL (IN)  
TODAY 0.0 T 1995 0.0 0.0 0.0  
1952  
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  
TODAY 0 6 -6 0  
MONTH TO DATE 63 71 -8 6  
SINCE SEP 1 63 71 -8 6  
SINCE JUL 1 79 91 -12 6  
 
COOLING  
TODAY 4 1 3 8  
MONTH TO DATE 71 59 12 95  
SINCE SEP 1 71 59 12 95  
SINCE JAN 1 643 684 -41 926    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (140)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION S (160)  
AVERAGE WIND SPEED 3.6  
 
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 AM  
LOWEST 79 1200 AM  
AVERAGE 86  
   
......................................................
 
 
 
THE GRAND RAPIDS MI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 90 1937  
MINIMUM TEMPERATURE (F) 50 28 1974  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2017.....SUNRISE 730 AM EDT SUNSET 739 PM EDT  
SEPTEMBER 23 2017.....SUNRISE 731 AM EDT SUNSET 737 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
63  
 
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