The problem is with the word 'normal'.
Almost all data, including semen analysis, has a typical bell shaped distribution with most most men having volume, counts and morphology grouped around the average with far fewer men with counts, volume, morphology at either extreme low or high end of the normal range.
However, there is no absolute cut off point to define what is 'normal' or 'abnormal'.
All the numbers everyone has quoted above are 'normal' but some are at the low end of normal.
There is no absolutes in this but obviously, higher volume, higher count, higher morphology, etc is better.
There is no point on the normal semen analysis scale that anyone can say this side of the scale you will not get a baby and that side you will not. Its just that low volume, low count, low morphology all reduce the probability. Only if there are no viable sperm present can you say it is impossible.
Orchid - I would strongly recomend you/DH talk to the doctor about advice on enhancing volue, count, morphology with lifestyle changes. Your DH has viable sperm. A thread from a week or so ago has good advice on this.