Just talked to on hardwood guy and he said now (April) is the good
time to install wood. Because here in Calgary Alberta, we have very
dry air in the winter. And if I wait until mid summer to do it, the
gaps in winter will be larger.

So now the air is still fairly dry, it will be better to do it now
than summer.

What he said kind of make sense to me but if that's true, what about
people installing hardwood flooring in the driest months of the
winter, wouldn't the floor all buckle during mid summer?

He also said to use narrower stripe like 2 1/4" so that the
contraction and expansion are smaller.

Do you think what he said makes sense? Thanks.