The Catholic holiday of Candlemas, on 2 February, is a feast to commemorate the purification of the Virgin Mary and the presentation of baby Jesus. In France, this holiday is called la Chandeleur, Fête de la Lumière,* or jour des crêpes.
Not only do the French eat a lot of crêpes on Chandeleur, but they also do a bit of fortune telling while making them. It is traditional to hold a coin in your writing hand and a crêpe pan in the other, and flip the crêpe into the air. If you manage to catch the crêpe in the pan, your family will be prosperous for the rest of the year.
There are all kinds of French proverbs and sayings for Chandeleur; here are just a few. Note the similarities to the Groundhog Day predictions made in the US and Canada:
À la Chandeleur, l'hiver cesse ou reprend vigueur
On Candlemas, winter ends or strengthens
À la Chandeleur, le jour croît de deux heures
On Candlemas, the day grows by two hours
Chandeleur couverte, quarante jours de perte
Candlemas covered (in snow), forty days lost
Rosée à la Chandeleur, hiver à sa dernière heure
Dew on Candlemas, winter at its final hour
*No relation to Lyon's Fête des lumières, which takes place from 5 to 8 December.