Boat Winterization and Winter Storage in Missouri

A boat in Missouri is laid up for about 3 months a year at St. Louis, and the median first 32°F night arrives October 24 at Kansas City (NOAA 1991-2020). 80 boat storage facilities are listed in Missouri, 55 with indoor or climate-controlled space.

October 24median first freeze, Kansas City
3 molaid up at St. Louis
19.5°FKansas City January low
80Missouri boat storage listings
Aprilfirst month in the water, St. Louis

The boat year in Missouri, month by month

MonthSt. Louis high / lowboatKansas City snowKansas City high / lowboat
Jan40° / 24°laid up4.9 in38° / 20°laid up
Feb46° / 28°laid up5.9 in44° / 24°laid up
Mar57° / 37°launch or haul-out1.7 in55° / 34°launch or haul-out
Apr68° / 47°in the water0.3 in66° / 44°launch or haul-out
May77° / 58°in the water0.0 in75° / 54°in the water
Jun86° / 67°in the water0.0 in84° / 64°in the water
Jul90° / 71°in the water0.0 in88° / 68°in the water
Aug88° / 69°in the water0.0 in87° / 66°in the water
Sep81° / 61°in the water0.0 in79° / 58°in the water
Oct69° / 49°in the water0.3 in67° / 46°in the water
Nov56° / 37°launch or haul-out1.1 in54° / 34°launch or haul-out
Dec45° / 29°laid up4.0 in42° / 24°laid up

Boat column rule: in the water at a 65°F high and 45°F low or warmer; launch or haul-out from a 52°F high; laid up below.

By that rule a boat at St. Louis has 7 months in the water (April to October), 2 of launch or haul-out and 3 laid up. By that rule a boat at Kansas City has 6 months in the water (May to October), 3 of launch or haul-out and 3 laid up.

Missouri freeze risk for boats

Missouri is hard-freeze country: Kansas City logs about 107.0 nights at or below 32°F and 25.8 days that never thaw, enough to freeze any water left in the engine block, raw-water passages, outdrive and plumbing.

Winterizing a boat before the Missouri freeze

  1. Run the engine on stabilized fuel so treated fuel reaches the injectors or carburetor.
  2. Drain the block and manifolds, or flush with propylene glycol antifreeze.
  3. Change engine and lower-unit oil; milky gear oil means water got in.
  4. Drain livewells, freshwater and washdown lines; antifreeze the pumps.
  5. Pull the drain plug, remove electronics and keep the battery on a maintainer.
  6. Book move-in before October 17.

Missouri boat storage for the winter (80 listed)

80 live listings in 26 cities; by listed type: 55 indoor, 36 covered and 58 outdoor (types overlap). 1 publishes a monthly rate on StowHelp, from $105 to $105 (median $105).

FacilityCityListed storageListed amenitiesAlso listed for
Ulrich Marine Boat & RV StorageBlue Eyeindoor, outdoor, coveredJet Ski
Robert B Miller & AssociatesClaytonindoor, outdoor
Runabout StorageOsage Beachindoor, outdoor, coveredJet Ski
MegaStorage Lee's SummitLee'S Summitindoor, outdoor, coveredJet Ski
Jerry's Boat StorageHollisterindoor, outdoor, coveredJet Ski
Attic Storage SmithvilleSmithvilleindoor, outdoor, coveredsecurity cameras, gated entryJet Ski
Premier Auto Storage & WarehouseSaint Louisindoor, outdoor
Material Sales CompanySaint Louisindoor, outdoorJet Ski
Big Oak Self StorageCamdentonindoor, outdoor, coveredsecurity cameras, gated entryJet Ski
STL Storage (Mini Storage STL)Wentzvilleindoor, outdoor, coveredJet Ski
Innerspace Storage CorporationIndependenceindoor, outdoor, coveredJet Ski
All Seasons Boat-RV StorageLibertyindoor, outdoor, coveredsecurity cameras, gated entryJet Ski
Ulrich Marine Boat & RV StorageBransonindoor, outdoor, coveredJet Ski
Chief StorageBeltonindoor, outdoor, coveredJet Ski
SLM RV & Boat StorageWentzvilleindoor, outdoor, coveredJet Ski
Dupo Marine CenterSt. Louisindoor, outdoor
Attic Storage of Liberty NorthLibertyindoor, outdoor
High Pointe StorageBransonindoor, outdoor, coveredJet Ski
TriLink Storage - HazelwoodHazelwoodindoor, outdoor
Lakeside Storage BransonHollisterindoor, outdoor, coveredJet Ski

Listed storage types by Missouri city

CityBoat Storage listingsIndoorClimate-controlledOutdoor
Ozark17000
Kansas City1411011
Saint Louis5505
Wentzville5505
Liberty4404
Osage Beach4404
Smithville4304
St Louis4202
Hollister3303
Lake Ozark3203

Missouri cities by listed boat storage (with indoor count)

Missouri boat winterization questions

When should I winterize a boat in Missouri?

NOAA's 1991-2020 median first 32°F night is November 4 at St. Louis and October 24 at Kansas City; winterize by October 10, two weeks ahead of the earlier date. By our boat rule St. Louis stays in the water through October and Kansas City through October, then 2 months of launch or haul-out follow at St. Louis. 55 Missouri listings offer indoor or climate-controlled space.

How many months is a boat laid up in Missouri?

3 at St. Louis (November to March) and 3 at Kansas City (November to April), plus 2 and 3 months of launch or haul-out. Those laid up months hold 14.8 of the 18.2 inches of snow Kansas City averages a year (81%), which is the load on a cover or carport roof. At St. Louis a boat is in the water from April to October (7 months), against 6 at Kansas City.

Where are indoor boat storage options in Missouri?

Of 80 live Missouri listings, 55 list indoor space and 0 climate-controlled units, against 58 outdoor and 36 covered. By city: Ozark (17 listed, 0 indoor), Kansas City (14 listed, 11 indoor), Saint Louis (5 listed, 5 indoor) and Wentzville (5 listed, 5 indoor). Most indoor listings: Kansas City (11), Saint Louis (5) and Wentzville (5). Ask whether indoor means heated; listings span 26 cities in all.

How much freezing weather does a stored boat face in Missouri?

At Kansas City, 3 months average a low at or below 32°F, all of them laid up months by our boat rule. Kansas City logs 107.0 nights at or below 32°F and 3.8 at or below 0°F a year; January, the coldest month, averages 19.5°F and is laid up for a boat.

When can a boat come out of storage in Missouri?

After the last frost. The median last 32°F night is April 2 at St. Louis and April 13 at Kansas City; the last 28°F hard freeze comes around March 23 and April 1. Our rule makes April the first month in the water at St. Louis and May at Kansas City. That month St. Louis averages a 47.0°F low and a 68.0°F high. Reverse each winterization step first.

Which Missouri cities have the most boat storage for the winter?

Missouri boat storage listings span 26 cities, led by Ozark (17 listed), Kansas City (14 listed), Saint Louis (5 listed), Wentzville (5 listed) and Liberty (4 listed). For outdoor winter parking, Kansas City (11 outdoor) and Saint Louis (5 outdoor) lead. Statewide, 58 list outdoor, 36 covered and 55 indoor or climate-controlled spaces. Compare the cities nearest you before October 24.

More Missouri and boat storage pages

Sources

NOAA NCEI Climate Normals 1991-2020 (USW00013994, USW00003947); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).

Compare Missouri boat storage before October 24

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