Okay ... now it's cold

After a very warm December and beginning of January, we've hit a cold snap. We have had lows below 0F for the last several days. The coldest we got at the vineyard was -14F two nights in a row ...( Saturday and Sunday nights Feb 3 and 4) While we got colder last year (-17 F) We didn't have as prolonged cold as we did this year. We also had a lot more wind during the cold periods with less snow this year. Not sure how the vines handle wind chill?