The yearly precipitation varies from around in the lowland valleys to around in areas of the northern and eastern escarpment bordering South Africa. Most of the rain falls as summer thunderstorms: 85% of the annual precipitation falls between the months of October and April. The winters—between May and September are usually very dry. Snow is common in the deserts and low valleys between May and September; the higher peaks can experience occasional significant snowfall year-round. Annual variance in rainfall is quite erratic, which leads to periodic droughts in the dry season (May to September) and flooding, which can be severe in the rainy season (October–April).
the yearly precipitation varies from around in the lowland valleys to around in areas of the northern and eastern escarpment bordering south africa most of the rain falls as summer thunderstorms 85% of the annual precipitation falls between the months of october and april the winters—between may and september are usually very dry snow is common in the deserts and low valleys between may and september; the higher peaks can experience occasional significant snowfall year-round annual variance in rainfall is quite erratic which leads to periodic droughts in the dry season (may to september) and flooding which can be severe in the rainy season (october–april)