Based on the observation data in 4 stations of Hezhou during 1960-2009(Fuchuan during 1960-2009),the climate characteristics and the spatial and temporal distribution of the possible influencing factors of thunderstorm,regional differences of the first and last thunderstorm and changing trends,relationship between precipitation and temperature with thunderstorms had been studied.The results showed that the Thunderstorms of Hezhou were more in the south than north and had obvious annual variation,which presented an obvious decreasing trend in past 50 years;there was a violent annual changes in the first and last thunderstorms as well as their interval days;thunderstorms happened more in summer than in winter,whose monthly distribution presented a single-peak type,the thunderstorms took place mainly from February to September,the most in August,least in December.The average monthly number of thunderstorm days for many years showed a significant positive correlation with precipitation and temperature;unstable factor and station meteorological factors change had a good indication for forecasting thunderstorms in Hezhou.
