Averages?

Here they are, according to a hundred thousand websites (all in yards)

1W 230+
3W 220
5W 180

3i 170
4i 160
5i 150
6i 140
7i 130
8i 120
9i 110
PW 100
GW 90
SW 75
LW <60

I have no idea what they're basing these averages on, but these seem to be the generally agreed upon yardages.

More important than what you SHOULD be hitting for distances is what you ARE hitting for distances.

Granted, using a 5i for an approach shot is a touch more difficult than using a 9i for an approach shot, but all you really need to know is what club to use to put you on the green from however far out you are.

For me, my PW was good from 115-120 yds out. Now, this spring, rather than saying that I should be hitting my PW from 115 or 120, I need to know how far it goes. Whether I've gained or lost distance is irrelevant to shooting a good score - knowing what distance it flies and rolls is what I need to know.