In summary, the annual mean precipitation range is projected to increase or decrease by up to 40% or more at 4℃ global warming over many land areas. The ranges of projected precipitation changes are smaller at lower levels of global warming . Either an increase or decrease is possible in most regions, but there is an agreement among models on the increase in the far north . There is a stronger model consensus on heavy precipitation increasing with global warming over most land areas . There are widely varying projections of change in dry spell length , but in regions with increasing projected dry spells, the potential increase is larger at higher levels of global warming .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report