You should winterize your boat in Greeley before the first hard freeze, which often arrives by October, and once your last outing of the season is done. Boomerang Self Storage in Greeley, CO offers drive-up boat storage units with 10-foot-wide and 10-foot-tall doors, plus assigned outdoor spaces.
When should you winterize your boat in Greeley?
The best time is before overnight temperatures drop below freezing, not after. Front Range weather can swing from warm afternoons to frosty mornings in a single week, so watch the overnight lows instead of the calendar. A good rule is to start your winterizing once frost shows up in the forecast and finish within a couple of weeks of your last trip.
Waiting too long puts you at risk of cracked lines, a damaged engine block, and a dead battery. It also means working in cold weather, when it is easy to skip steps.
What steps matter most for the engine and fuel system?
Add fuel stabilizer to a nearly full tank, then run the engine so the treated fuel reaches the carburetor or injectors. Change the oil and filter, and replace the lower unit gear oil if your manual calls for it. Flush the engine with fresh water, and fog the cylinders if the manufacturer recommends it.
Drain water from the engine block and any lines that could freeze, then add antifreeze where required. Check belts, hoses, and fuel filters while you are at it. An hour of work in fall can prevent an expensive repair in spring.
How do you clean, drain, and dry the boat?
Colorado takes aquatic nuisance species seriously, so cleaning matters. Remove plants, mud, and debris from the hull, trailer, and bunks, and drain the livewells, bilge, and any ballast. Pull the drain plug and let the boat dry fully before you cover it.
Wash the hull and deck with fresh water, wipe down the interior, and open lockers and hatches for airflow. A clean, dry boat resists mildew through the winter and is ready to launch in ...
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October 17th, 2026
