The average annual temperature in Dorra is 29.1 °C. About 165 mm of precipitation falls annually. The driest month is June with 4 mm, and nine months of the year tend to be arid, with on average no more than 13mm of rain per month. Average precipitation in August, accounting for years when the rains in this area arrive or do not arrive, is 30 mm - the three months when typically quantities of rain supporting grassland means there is significant herding in this eastern extreme of a huge escarpment reaching beyond the border and rising to the central parts of the Ethiopian Highlands.