The month of December marked the cessation of the October to December (OND) seasonal rainfall. According to Kenya Metrological Department (KMD), the rainfall forecast for January 2022 indicates that; a few parts of the country will experience occasional rainfall during the first and second weeks of January and remain generally sunny and dry towards the end of the month. These include a few areas in; Southern Rift Valley (Narok), South-eastern lowlands (Kajiado, Kitui, Makueni, Machakos, and Taita Taveta), and parts of the Highlands East of the Rift Valley (Meru and Embu).

The vegetation condition index in most of the ASAL counties was either severe or extreme deficit. The month of December 2021 showed alarming deterioration in vegetation condition across the Arid and Semi-Arid Counties (ASAL) as compared to the previous month of November 2021. This is attributed to the late-onset and poor performance of rainfall in the month of November. Further, the pasture and browse conditions are on a worsening trend.

National monthly drought updates - January 2022