These McIntosh growth stages were recorded at the Peach Ridge Weather Station in Sparta, Michigan.  The stages were recorded since 1976 and are the dates when 80% of the fruit buds are at that stage except for 1st Green which is the date when the 1st bud had visible green tissue.
Growth Stage Reports  Philip Schwallier & Amy Brown
1998 Peach Ridge Final Version May 10, 1998
Date Normal 1997 1998 Growth 
Stage		 Normal 
Date		 1998 
Date		 Days Ahead 
of Normal		 Normal Number  
of Days in Stage
3/27      
3/28       1st Green 4-12 3-30 14 4
3/29       Green Tip 4-15 4-4 9 3
3/30     1st G. 1/4" Green 4-19 4-7 12 3
3/31       1/2" Green 4-22 4-13 9 4
4/1       Tight Cluster 4-26 4-19 7 5
4/2       Open Cluster 5-1 4-23 9 4
4/3       Pink 5-5 4-25 10 4
4/4     G. Tip King Bloom 5-9 5-2 7 2
4/5   1st G.   Full Bloom 5-11 5-4 7 5
4/6       Petal Fall 5-16  5-7 9  
4/7     1/4" G.
4/8      
4/9      
4/10      
4/11      
4/12 1st G.    
4/13     1/2" G.
4/14      
4/15 G. Tip    
4/16      
4/17      
4/18      
4/19 1/4" G. G. Tip Tight C.
4/20      
4/21      
4/22 1/2 " G.  
4/23   1/4" G. Open C.
4/24      
4/25      
4/26 Tight C.   Pink
4/27      
4/28   1/2 " G.  
4/29      
4/30      
5/1 Open C.    
5/2     King B.
5/3   Tight C.  
5/4     Full B.
5/5 Pink    
5/6      
5/7      P. Fall
5/8      
5/9 King B. Open C.  
5/10      
5/11 Full B.    
5/12      
5/13      
5/14      
5/15      
5/16 P. Fall Pink  
5/17      
5/18      
5/19      
5/20      
5/21      
5/22      
5/23   King B.  
5/24      
5/25   Full B.  
5/26      
5/27      
5/28      
5/29      
5/30   P. Fall  
5/31