Abstract: In the spring of 2012,Hulun Buir City：main climatic characteristics of temperature and calendar year the corresponding period values compared to most,the average temperature in normal to high.The precipitation and the calendar year the corresponding period compared to the values,a pasturing area,farming area slants little to normal,normal forest zone to slant much;major weather events：early spring snow in Hulun Buir Grassland appear cool weather,traffic is blocked,flights.Mid spring drought little rain,fire weather grade is higher,pasture,forest succession of grassland,forest fire department.In late spring, farming pasturing area of occurrence phase sex less rainfall,especially western natural precipitation continued lack of pastoral area.