BRRRRR!!!!! Cold Snap

Its turned cold with the lows in the teen and the highs in the 30s. My lettuce and cauliflower seedlings have sprouted but look bad. I think the seed is past its prime. My second set of broccoli starts are doing fine. We had a nice bit of sun yesterday and I positioned them in the window to allow them to drink up. ZUM PROST! So I'll have to sow a new batch of starts. We really needed this cold to keep everything on schedule.