We haven't had a decent winter since 2013/2014. In 2013, the spring was about a month early although there had been a lot of cold and snow and there has been hardly any winter to speak of. Well, last season, there was one night in early January when the temperatures fell to - 15 and my purple Vanda orchid and one of the big Ornithogala froze to death.
I haven't acquired a new Vanda yet, I'm going away for a few days so I'll order it for the next week and I learned my lesson. Soooo... Occupy Windowsills!