Depending on whom you ask, the term "Spring Fever" has different meanings. It might imply a new level of sloth as people put chores aside to take a break and enjoy the magic of nature. It might be the opposite -- a burst of new energy that makes us feel glad to be alive, as if we were awakening from a wintertime of hibernation. Maybe it's a combination of both.
This is peak time at work for me, so I hope this great weather lasts for a while so I can enjoy it. Here in New York, it seems like we really only have two seasons -- winter and summer -- and the greatness of true spring and fall are given short shrift, coming and going before we all can really appreciate them. Hopefully, a late start to spring will mean the great weather will linger into summer before the uncomfortable heat, humidity, and thunderstorms arrive.