The geography of the Burgundy region, which extends some 300 kms from north to south, exposes its local vineyards to varying climates.
The northern vineyards of Chablis are subject to continental weather patterns, but as you drive south towards the Mâcon, local weather comes under the influence of mountain ranges to the east and west which can channel winds across the vineyards and increase local rain. Even in late spring and early summer, precipitation from the mountains can bring disastrous falls of hail which decimate flowering vines.
The wettest months tend to be December and January with rain on an average 17 days of which at least eight are very heavy indeed. March is relatively dry by comparison with rain on an average 12 days of which six can be considered heavy. Average rainfall from April to July is also 12 days, but it is less heavy.
Temperatures are typically around 6°C during December and February, but by March there is a fairly steep rise to over 10°C. May has balmy spring-like weather but the nights can be cold and early morning frost very severe. This causes the vignerons sleepless nights worrying about its effect on the tender young shoots which could ruin their livelihoods for the year.
Temperatures during the summer months are comparable to those of the Loire Valley and consistent throughout the region from a low of 16°C in May to a high of 26°C.
Winter brings cold and strong winds in Burgundy, often so strong they create high waves on the Rivers Rhone and Saône.