What happened to spring?

I got some new sandals and haven't worn them yet.  What happened to spring?  What happened to temps in the 70's and 80's?  I'm back to wearing layers of clothing.  I didn't even put any winter things away yet.  Not sure what's happening with the climate but lately you can't depend on it anymore.  The only good thing this year we didn't get as much snow.  I don't have to pay out as much for the snow plowing.  Last year I think we were still shoveling in April.   I'll be happy if we don't get any snow but they are forecasting a frost for tonight....so that's not out of the realm of possibility.