When I went for the train yesterday morning it did feel very spring-like. Lots of birds singing, mild temperature and a bright morning despite some cloud.
Am about to do the same journey now and will be heading out into sideways sleet and snow, a gale and heavy mist. Several major roads near us closed too - A53, Cat-and-Fiddle, Snake Pass...
Don't count your swallows is the moral I guess - or whatever the spring equivalent is - cuckoos?