915  
CDUS43 KGRR 210523  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
122 AM EDT FRI JUL 21 2017  
 
   
...............................
 
 
   
..THE GRAND RAPIDS MI CLIMATE SUMMARY FOR JULY 20 2017
 
 
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)  
YESTERDAY  
MAXIMUM 86 448 PM 99 1934 83 3 90  
1930  
MINIMUM 70 857 AM 44 1941 62 8 61  
AVERAGE 78 73 5 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 2.78 1912 0.12 -0.10 0.00  
MONTH TO DATE 1.07 2.42 -1.35 1.91  
SINCE JUN 1 5.95 6.19 -0.24 3.06  
SINCE JAN 1 22.55 19.77 2.78 19.86  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2006 0.0 0.0 0.0  
2005  
2004  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE JUN 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 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 22 45 -23 21  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 13 8 5 11  
MONTH TO DATE 156 157 -1 182  
SINCE JUN 1 318 302 16 372  
SINCE JAN 1 348 349 -1 443    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 8.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE 61 PERCENT  
AVERAGE SKY COVER 0.6  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 900 AM  
LOWEST 61 500 PM  
AVERAGE 81  
   
......................................................
 
 
 
THE GRAND RAPIDS MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 104 1934  
MINIMUM TEMPERATURE (F) 63 43 1944  
 
 
SUNRISE AND SUNSET  
JULY 21 2017..........SUNRISE 623 AM EDT SUNSET 914 PM EDT  
JULY 22 2017..........SUNRISE 623 AM EDT SUNSET 913 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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