How Fast Does a Puppy Grow?

Growth Charts from Ambleside and de Quoy

The Ambleside Growth Chart

(prepared by Col. William Dana from a 23 year record kept by Ambleside Kennels, and is a record of AVERAGE heights and weights by sex)

  Weight (lbs) Height (inches)
  Male Female Male Female
2 mos 24.8 23.5    
3 mos 44.7 41.7 21.2 20.8
4 mos 64.9 58.2 25.1 24.2
6 mos 98.3 87.2 30.1 28.6
8 mos 117.1 102.8 32.9 31.1
10 mos 129.7 114.8 34.2 32.3
12 mos 136.1 116.7 34.9 32.5
18 mos 144.7 120.1 35.5 32.9
24 mos 149.8 129.0 35.9 33.6
36 mos 161.8 132.0 36.0 33.7

Height and Weight Charts 1956-1976 by Alfred de Quoy

(from The Irish Wolfhound Guide)

Height (inches)
Males Females
Age # of IWs Max Min Mean Age # of IWs Max Min Mean
3 mos 10 22.5 21.5 22.0 3 mos 11 21.5 21.0 21.2
4 mos 10 25.5 24.0 24.6 4 mos 9 24.5 23.8 24.1
5 mos 10 28.5 25.5 27.4 5 mos 4 27.0 25.0 26.2
6 mos 10 31.5 27.8 29.6 6 mos 4 28.0 28.0 28.0
7 mos 15 32.5 29.8 31.0 7 mos 4 30.0 27.3 29.3
8 mos 13 33.8 30.3 32.0 8 mos 5 31.0 28.3 30.2
9 mos 13 34.0 31.5 33.0 9 mos 12 32.8 29.5 31.1
10 mos 18 34.5 32.8 33.7 10 mos 10 32.5 30.0 31.5
11 mos 26 34.5 32.0 33.8 11 mos 28 35.0 30.0 31.9
1-2 yrs 130 36.3 31.3 33.9 1-2 yrs 71 34.5 29.0 31.9
2-3 yrs 40 36.8 30.5 34.0 2-3 yrs 46 34.5 29.8 31.9
3+ yrs 54 36.8 31.0 34.0 3+ yrs 48 34.3 29.5 31.8
Weight (lbs)
Males Females
Age # of IWs Max Min Mean Age # of IWs Max Min Mean
birth 35 1.8 0.6 1.2 birth 27 1.9 0.6 1.2
1 mo 20 14 8 10 1 mos 27 13 6 9
2 mos 22 37 23 30 2 mos 28 37 19 25
3 mos 18 56 41 45 3 mos 29 51 32 41
4 mos 13 82 45 71 4 mos 12 69 52 64
5 mos 10 97 67 83 5 mos 13 89 62 80
6 mos 16 110 80 96 6 mos 16 107 79 92
7 mos 8 117 95 106 7 mos 5 112 89 101
8 mos 5 126 100 114 8 mos 7 125 92 109
9 mos 11 135 106 120 9 mos 10 145 108 114
10 mos 9 143 105 126 10 mos 3 143 100 119
11 mos 9 138 113 130 11 mos 5 138 100 120
1-2 yrs 70 185 91 134 1-2 yrs 52 151 79 121
2-3 yrs 32 170 102 139 2-3 yrs 30 144 97 122
3+ yrs 36 172 107 145 3+ yrs 27 150 98 126

Illustrated Growth of a Male Pup Born in 2012

Age Weight Picture
birth 1 pound newborn IW puppy
4 weeks 8 pounds 4 week old IW puppy
8 weeks 23 pounds 8 week old IW puppy
12 weeks 66 pounds 12 week old IW puppy
6 months 101 pounds 6 month old IW puppy
12 months 147 pounds one year old IW puppy
15 months 164 pounds 15 month old IW puppy
18 months 179 pounds 18 month old IW puppy

This page was last updated 06/15/2019.