http://www.uesp.net/wiki/Morrowind:Races
^^^ there is a model height chart at the bottom of that table. May not be exactly what your looking for but its something to go off of I suppose.
Altmer are the tallest at 1.1 for both genders. Nords come in 2nd just barely above Orcs at 1.06 vs. 1.05. Then most of the other races come in at 1.0 even (with the males being just slighty taller.) Then there are Breton and Khajit females at .95 and bringing up the rear are the male Bosmer as .90
What units of measurement are those in?
By assigning a corresponding height to those numbers and calculating accordingly, you can get what looks like a relatively realistic chart.
I used 6 feet to correspond to 1.0, because 6 feet is a nice even number. It seems a bit tall to be a statistical norm, yeah, but it'll get you a workable chart, from which rather than the middle of the statistical norm, you can consider the results to be the highest range of what is probably normal for each race, with the average being conceivably anywhere from 3-8 inches LOWER.
So if you figure 1.0 = 6' = 72'', multiply 72 by each variation on the chart, then divide by 12 to put it back into feet and inches, you get this (some are rounded to get even inches and half-inches, since most of our brains don't work in measurements of .2 inches
) :
Altmer (both genders) - 6'6''
Argonian Male - ~6'2''
Argonian Female- 6'
Bosmer Male - 5'4''
Bosmer Female - 6'
Breton Male - 6'
Breton Female - 5'7''
Dunmer (both genders) - 6'
Imperial (both genders)- 6'
Khajiit Male - 6'
Khajiit Female - 5'7''
Nord (both genders)- ~6'3.5''
Orc (both genders) - 6'3''
Redguard Male - ~6'1''
Redguard Female - 6'