Mean monthly rainfall distribution – Lake Victoria Sub-basin

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The Lake Victoria Sub-basin depicts a bimodal rainfall pattern with the main dry season occurring between June – August. Generally, wide variation in the monthly rainfalls can be seen from the standard deviation plots. The lake region indicates high dependable rainfall amounts (80th percentile) throughout the year apart from the south eastern part of the lake, around Mwanza in Tanzania which registers very little amounts of about 10mm in the dry season.

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