Late spring: Wash the deck
Aside from general dinginess, one of the sure signs a deck needs washing is a film of mold and grunge. Left unchecked, mold and dirt and can trap moisture and cause rot.
Begin cleaning your deck by removing debris from between deck boards using a putty knife. (For a makeshift extension that’s a real knee-saver, try pushing the handle of your putty knife into a length of 1¼-inch PVC pipe. Some putty knives squeeze right in.)