Changes in the timing and magnitude of precipitation and extreme temperatures are impacting agricultural production . Since the mid-20th century, increasing mean precipitation has positively impacted agricultural production in SES, although extremely long dry spells have become more frequent, affecting the economies of large cities in southeastern Brazil. Conversely, reduced precipitation and altered rainfall at the start and end of the rainy season and during the mid-summer drought  is impacting rainfed subsistence farming, particularly in the Dry Corridor in CA and in the tropical Andes, compromising food security . The crop growth duration for maize in those regions was reduced by at least 5% between 1981-2010 and 2015-2019. 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report