We moved from Cali where "Blu" was born to a location that snows, her first winter we got her the LL bean field coat. Not sure where you are at but this seems to keep her content for bathroom breaks, runs and general outdoor activities on cold snaps. We used it last year when it went to -30 Fahrenheit last year. At the moment its just down to the 20's and it great. We take her out in it whenever it's below 40. Plus she looks good an added bonus.
I have several fleece and rain jackets from a local company called Canine Equipment- http://www.canineequipment.com/ . These jackets last me for a very long time and are also very cool looking on our V. Also, if this makes a difference, they come with Canadian pricing, meaning, if you are on US side, with current $ exchange rates, you will get steal of a deal.