Every fucking year. Meteorology recognises the spring months as March, April and May. It's only astronomically that Feb is the start of spring.
Every year since before neolithic times we, that is the Irish and of course the Scottish and Manx have celebrated Imbolc, it is a Gaelic traditional festival marking the beginning of spring.
You can shove your Meteorology up your ass M8 and fuck off back to Blighty if you don't like our ways.
You don't like it, you can continue to live in a church-led fantasy.
Spring has got absolutely nothing whatsoever to do with the church, it was St Brigid's day yesterday which is the churches way of highjacking Imbolc, kinda like how xmas is a highjacking of Yule.
Happy Spring everyone