Some of the most common problems encountered during 3D printing are curling and warping. Both these problems occur due to the difference in cooling down of layers, where the lower layers cool down faster than the upper ones. Ambient temperature, if unregulated, compounds these problems. Therefore ambient temperature is an important factor for overall build quality.
Solutions for problems due to ambient temperature include enclosing the build plate in a housing, so that the ambient temperature does not vary rapidly, placing the 3D printer away from the windows or air conditioning to avoid drafts of wind upsetting the ambient temperature and lastly, maintaining ambient temperature as specified by the manufacturer of the plastic filament used for your print.