Problem Statement and Purpose. Rational use of nature, solution of natural and environmental problems, planning and location of various sectors of the economy are based on climatological information. As empirical data accumulate, some values, as well as the probabilistic characteristics of climate-relatednatural resources, need constant refinement due to the fact that hydrometeorological phenomena are extremely variable in time and space. Of great practical interest is information on daily and maximum rainfall and therefore there is a need for their comprehensive analysis, study and forecasting. Data & Methods. The initial information for estimating the precipitation regime is the term data for 00, 06, 12 and 18 hours at nine stations of Odessa region in the period 2010–2015, to which a number of general scientific and statistical methods were applied. Results. Some indicators of the precipitation regime, which are widely used in scientific and practical developments, are analyzed. The total number of days with precipitation and their recurrence are determined. For the territory of the region it is 34.4%. The most days with precipitation were observed in January, and the least – in August, except for Art. Calm, at which the minimum number of days with precipitation was recorded in November. The frequency of precipitation of different gradations was studied and significant precipitations were analyzed: 10, 20, 30 mm and more per day. The region is dominated by precipitation up to 10.0 mm, the frequency of which ranges from 86% (station Rozdilna) to 91.4% (station Odessa). The maximum frequency of days with precipitation of 30 mm or more per day falls on the warm season (April-October). The fields of daily maximum of 1% and 5% probability are heterogeneous and at some stations of Odessa region the values of this indicator exceed the climatic norm (up to 10–12 mm), at others – less than the norm. The obtained results are a certain contribution to the study of both theoretical and practical aspects of the study of daily amounts and daily maximum precipitation, which are indicators of the regional climate. They can be used to make a climatological forecast, which is necessary for a more complete development of climatic resources of Odessa region.