Just my personal preference but I like my dry reds at room temp., approx. 65 degrees and my whites cooler. I will put my whites in the fridge for 30 minutes or so, at a starting temp. of 65. Probably 55'ish or so when taken out of fridge.
I also agree with previous posts. be forewarned if red wine is to cold it may taste bitter due to tannin conversely to warm say about 70deg or higher may increase alcohol taste. I keep my wine cooler at 55 deg with reds on top and whites on bottom.