Bukkit

What steps will reproduce the problem?
1.Trying to hook SnoGro to server's weather

What is the expected output? What do you see instead?
It should hook to server's weather and when it's snowing snow's height should increase but it doesn't.

What version of the product are you using?
SnoGro v1.2.4

Do you have an error log of what happened?
There is no error.

Please provide any additional information below.
It says "world is now hooked into weather!"

Bukkit version? Java version?

From everything you said on the main page it sounded like you hat trouble getting the command "/snow enable world" to even work. However, the fact that you see "world is now hooked into weather!" show it's working. So the answer is yes, it's hooking into weather just fine.

So part two: The default config is designed to work while minimizing the amount of lag. This means that the snow can seem to take a long time to 'change' on a storm. I suggest you change the growth chance in the config (say 40ish%?) and see if that does what you need.

Note that there also seems to be a slight problem with Bukkit not firing 'WeatherChangeEvent' for naturally occurring storms, but not with storms started from a command. (and by that I mean "/weather stormy" works every time, but not if the weather starts by itself.) I've been meaning to figure this out but I can't consistently recreate the problem.

TLDR: Increase the growth-chance for storm-snow and start a storm by command and it should snow around you.

(Also make sure you're actually in a snowy biome, it won't snow in the desert.)