Hello and welcome to Manitoba Golf Forum
The start to golf season in Winnipeg and Manitoba varies every year of course due to the unpredictable winter weather. It all depends on how warm it gets, how much snow there is on the golf course and how fast the snow melts.
There are always some golf courses pushing to be the first Winnipeg or Manitoba golf course to open. In 2009 I recall some golf courses were open mid April. There have been times when some golf courses opened in late March, although very rare.
As for 2010 golf season starting, I think early to mid April sounds like a sure bet.