Spring has come!

Spring is here!

This year, I spend in winter for the first time in Newfoundland, Canada.

This year, I spent my first winter in Newfoundland, Canada.

It was windy, and cold, and I had no idea how to survive.

I bought new water proof new boots, and borrowed wind breaker, and some how I managed.

I bought new, waterproof boots and borrowed a windbreaker, and somehow I managed.

Now spring has come! I moved to Atrantic Canada, and the weather is nicer.

Now it's springtime!  I moved to Atlantic Canada, where the weather is nicer.

I'll enjoy spring and summer in Canada!

"Spring has come!" is grammatically okay, but it's more natural to say "Spring is here" or "It's springtime!" in my opinion.