It's winter where I am.
Unless your event is local please don't use seasons to denote a timeframe.
It’s hard to resist names with Summer in them, because it’s a handy trope with lots of positive connotations. Summer (no matter which months of the year it happens in) is a good time for passion projects and the like. Plus there is the trend established by the “Google Summer of Code”, “Rails Girls Summer of Code”, “Infinite Summer”, etc.
I just moved to Australia, and we have `inverted' seasons here, too.
I've had a prototype of my [Mac GIFs app](https://github.com/orta/gifs) partially written in Swift. Will be signing up for this.