Precipitation acts as one of the most important elements of the climate. There has been much discussion and research in this regard. Spatial and temporal distribution of precipitation is very important in a place. This study aims at the understanding of the distribution of precipitation in specified time period for optimization of its use in agriculture, industry and human consumption. Estimation of flood and determination of the potential flooding and drainage system design, including the use of spatial and temporal distribution of precipitation is considered in the current research. To study the spatial and temporal distribution of precipitation in the city of Tabriz daily data from 11 stations were used for the period 1378 to 1388. To achieve the above objectives and zoning of the area in terms of precipitation, the first step was to prepare maps which were then converted to the data. Data were also used to remove cells outside the borders of original matrix that contained daily precipitation. The results showed that Tabriz county precipitation is separable into three distinct groups of with average precipitation, low precipitation and few others had some of the highest precipitation amounts.