winter is transitory

yes there is a "snow event" going on outside my windows...and the community garden is prtetty much still in hibernation ( except the winter wheat )...but there's garlic out there and jerusalem artichokes...and rosin weed ( a sunflower relative and "plant ally" of the jerusalem artichokes...as if they needed help ) and doubtlessly some volunteers as well...this stuff cannot last for ever so as aharbinger of spring i made up a planting schedule for some of the beds: Community Garden 2014: Northern Tepehuan Teosinte- as soon as soil is workable before last frost, Potatoes- Early Blue, German Butterball, Red Nordland second week of April. Yukon Gold in May, Cucumbers- Mid-May, Pole Beans- Mid-May, Quinoa- Third week of May, Hopi Blue Maize- Memorial Day, Apache Red maize- Memorial day, Dakota Black Popcorn- Memorial Day, Sweet Corn- Memorial Day. there may be more...i have a surfeit of seeds and any number of plants already started...space will be the determinant...i am ready...eighteen days to spring...how long until spring weather?