Durant les deux premi\u00e8res d\u00e9cades du mois d\u2019ao\u00fbt, les temp\u00e9ratures moyennes sont inf\u00e9rieures aux normales saisonni\u00e8res sur l\u2019ensemble du territoire, except\u00e9 dans l\u2019extr\u00eame Sud-Est, la Corse et aux alentours de Dieppe et de Reims. Cependant, la moyenne mensuelle de la France m\u00e9tropolitaine reste tr\u00e8s proche de la normale saisonni\u00e8re (-0,3\u00b0), compte tenu d\u2019un r\u00e9chauffement des temp\u00e9ratures les derniers jours du mois.<\/p>\n
Les pr\u00e9cipitations du mois d\u2019ao\u00fbt sont exc\u00e9dentaires dans la majorit\u00e9 des r\u00e9gions, atteignant un surplus proche de 30% au niveau national. Toutefois les r\u00e9gions du Sud-Est se d\u00e9marquent du reste de la France, par une pluviom\u00e9trie r\u00e9duite de moiti\u00e9 par rapport \u00e0 la normale, voir quasi nulle en Corse. Entre le 1er et le 20 ao\u00fbt, on observe des variations tr\u00e8s importantes de cumul de pr\u00e9cipitations suivant les zones concern\u00e9es.<\/p><\/blockquote>\n
Elles sont jusqu\u2019\u00e0 dix fois sup\u00e9rieures \u00e0 la normale sur la zone du Vivarais. A l\u2019inverse, les pr\u00e9cipitations sont deux fois inf\u00e9rieures \u00e0 la normale, voir quasi inexistantes en Corse, en Loz\u00e8re et sur une bande allant du pays Ni\u00e7ois aux montagnes de Bigorre.
\nDepuis le mois de mars, les pluies ont \u00e9t\u00e9 abondantes, et\u00a0 les pr\u00e9cipitations cumul\u00e9es depuis le 1er mars 2008 sont sup\u00e9rieures \u00e0 la normale sur la quasi totalit\u00e9 du territoire. Toutefois, on observe un cumul des pr\u00e9cipitations jusqu\u2019\u00e0 30% inf\u00e9rieur aux normales dans quelques zones du Sud du territoire, de l\u2019Ile de France et de la Beauce.
\nLes pr\u00e9cipitations du mois d\u2019ao\u00fbt, ajout\u00e9es aux pluies fr\u00e9quentes des mois pr\u00e9c\u00e9dents, ont fait remonter le niveau des r\u00e9serves d\u2019eau sur l\u2019ensemble du territoire. D\u00e8s lors, le niveau des r\u00e9serves utiles des sols est sup\u00e9rieur aux normales sur la majeure partie de la France. Il est presque deux fois sup\u00e9rieur aux alentours du Vivarais, et sur la pointe Finist\u00e8re. De plus, les zones encore d\u00e9ficitaires, situ\u00e9es essentiellement dans le Sud- Ouest et\u00a0 sur une large bande allant de la Normandie \u00e0 la Lorraine, n\u2019ont qu\u2019un \u00e9cart relativement faible par rapport \u00e0 la normale, proche de 15%.<\/p>\n","protected":false},"excerpt":{"rendered":"Durant les deux premi\u00e8res d\u00e9cades du mois d\u2019ao\u00fbt, les temp\u00e9ratures moyennes sont inf\u00e9rieures aux normales saisonni\u00e8res sur l\u2019ensemble du territoire, except\u00e9 dans l\u2019extr\u00eame Sud-Est, la Corse et aux alentours de Dieppe et de Reims. Cependant, la moyenne mensuelle de la…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3692","post","type-post","status-publish","format-standard","hentry","category-agriculture"],"yoast_head":"\n
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