Winemakers in France fought frost with fire when a drop in temperatures threatened grape crops this week. It's a stark contrast to temperatures over the winter with some areas in Europe, including much of France, experiencing their warmest winter on record. "Temperatures in much of France from Dec. 1 through April 17 have averaged 5 F above historical levels," AccuWeather Senior Meteorologist Alex Sosnowski said. "The warmth that followed a brief chilly episode from early April has pushed temper