There is an online interactive thingy: Cycling Pro Tips: What to Wear in Any Weather | Outside Online

But low 60's to 30's.... is a large spread. You're going to need a good selection of clothing items. I have and use:
Underarmor tee's
Jerseys (summer weight)
Long sleeve Jerseys
polar fleece
soft-thermal jacket
Wind-rain jacket
goggles
heavy cycling gloves (and lighter long fingered gloves)
Face protection
Balaclava (I even have a winter helmet)


The main thing is being able to be warm if you stop... but having zippers that allow you to open and vent away moisture and any excessive heat. Having a rear trunk/bag that allows for an extra jacket/poncho/ski-mask etc. makes packing carry along stuff easy.