it's really not a big deal. average temps in early april are around 50 for a high and 30 for a low, and by the end of the month the average high is up to 65. by that point of the year there's not much difference between the climate there and the climate in chicago, detroit or cleveland. they'll probably get a couple of "cold outs" or "snow outs" in a year, but i would guess that from beginning to end of the season, you'll get more rain outs in an open air stadium in, say, miami, boston or new york than you will in minneapolis. How's their late October? fantastic. and cold. so the f-what.