I've noticed my daily temp swings are getting to about 20+ degrees this time of year vs usually 10 degrees in the winter and summer. This combined with frequent rain showers and winds makes the commute a little trickier to dress for. However it still usually requires less overall equipment and studded tires are not necessary any more.
Still I enjoy seeing the birds coming back, the flowers blooming, and the trees budding. More people are getting out on the towpath (MUP) and it is now light for both my commutes. Things are definitely improving.
Craig