A personal watercraft in Massachusetts is off the water for about 7 months a year at Boston, and the median first 32°F night arrives October 21 at Worcester (NOAA 1991-2020). 42 jet ski & PWC storage facilities are listed in Massachusetts, 39 with indoor or climate-controlled space.
| Month | Boston high / low | personal watercraft | Worcester snow | Worcester high / low | personal watercraft |
|---|---|---|---|---|---|
| Jan | 37° / 23° | off the water | 18.2 in | 32° / 17° | off the water |
| Feb | 39° / 25° | off the water | 21.2 in | 35° / 19° | off the water |
| Mar | 46° / 31° | off the water | 13.7 in | 43° / 26° | off the water |
| Apr | 56° / 41° | off the water | 1.9 in | 56° / 37° | off the water |
| May | 67° / 50° | wetsuit weather | 0.0 in | 67° / 47° | wetsuit weather |
| Jun | 76° / 60° | on the water | 0.0 in | 75° / 56° | wetsuit weather |
| Jul | 82° / 66° | on the water | 0.0 in | 80° / 62° | on the water |
| Aug | 80° / 65° | on the water | 0.0 in | 78° / 61° | on the water |
| Sep | 73° / 58° | wetsuit weather | 0.0 in | 71° / 53° | wetsuit weather |
| Oct | 62° / 48° | off the water | 1.1 in | 59° / 42° | off the water |
| Nov | 52° / 38° | off the water | 1.9 in | 48° / 33° | off the water |
| Dec | 42° / 29° | off the water | 14.9 in | 38° / 23° | off the water |
Jet Ski column rule: on the water from a 76°F high; wetsuit weather from 66°F; off the water below.
By that rule a personal watercraft at Boston has 3 months on the water (June to August), 2 of wetsuit weather and 7 off the water. By that rule a personal watercraft at Worcester has 2 months on the water (July to August), 3 of wetsuit weather and 7 off the water.
Massachusetts is hard-freeze country: Worcester logs about 129.7 nights at or below 32°F and 45.4 days that never thaw, enough to freeze any water left in the exhaust, cooling passages and pump housing.
42 live listings in 21 cities; by listed type: 38 indoor, 1 climate-controlled, 17 covered and 38 outdoor (types overlap). 1 publishes a monthly rate on StowHelp, from $27 to $27 (median $27).
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Gateway Marina Inc | Boston | indoor, outdoor | Boat | |
| AAA Self Storage | Plymouth | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Off the Boat | Revere | indoor, outdoor | Boat | |
| Boston Yacht Haven Inn & Marina | Boston | indoor, outdoor | Boat | |
| EZ Storage Newton | Newton | indoor, outdoor, covered | Boat | |
| Boston Harbor Shipyard & Marina | East Boston | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Boat Butler Cape Cod | Mashpee | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Boston Boat Racks | Charlestown | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Zecco Marina | Wareham | indoor, outdoor, covered | Boat | |
| Charlestown Marina | Charlestown | indoor, outdoor | Boat | |
| USA Marine Inc | Worcester | indoor, outdoor, covered | Boat | |
| Atlantis Marina Dock's | Winthrop | indoor, outdoor | Boat | |
| Captain Jacks Viking Marina | Winthrop | indoor, outdoor | Boat | |
| Meriel Marina Bay | Quincy | indoor, outdoor | Boat | |
| Marshfield Boat Storage | Marshfield | indoor, outdoor, covered | Boat | |
| Cataumet Boats | Cataumet | indoor, outdoor, covered | Boat | |
| Riverside Design Vintage | Cambridge | indoor, outdoor | Boat | |
| Bosun's Marine | Mashpee | indoor, outdoor, covered | Boat | |
| Dealer Dock | Allston | indoor, outdoor | Boat | |
| 126 Self Storage | Ashland | indoor, outdoor, covered | security cameras, gated entry | Boat |
| City | Jet Ski & PWC Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Boston | 10 | 6 | 0 | 6 |
| Quincy | 5 | 5 | 0 | 5 |
| Charlestown | 4 | 4 | 0 | 4 |
| Winthrop | 3 | 3 | 0 | 3 |
| Mashpee | 2 | 2 | 0 | 2 |
| Plymouth | 2 | 2 | 0 | 2 |
| Wareham | 2 | 2 | 0 | 2 |
| Allston | 1 | 1 | 0 | 1 |
| Ashland | 1 | 1 | 0 | 1 |
| Cambridge | 1 | 1 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is November 9 at Boston and October 21 at Worcester; winterize by October 7, two weeks ahead of the earlier date. By our personal watercraft rule Boston stays on the water through August and Worcester through August, then 2 months of wetsuit weather follow at Boston. 39 Massachusetts listings offer indoor or climate-controlled space.
7 at Boston (September to May) and 7 at Worcester (September to June), plus 2 and 3 months of wetsuit weather. Those off the water months hold 72.9 of the 72.9 inches of snow Worcester averages a year (100%), which is the load on a cover or carport roof. At Boston a personal watercraft is on the water from June to August (3 months), against 2 at Worcester.
Of 42 live Massachusetts listings, 38 list indoor space and 1 climate-controlled units, against 38 outdoor and 17 covered. By city: Boston (10 listed, 6 indoor), Quincy (5 listed, 5 indoor), Charlestown (4 listed, 4 indoor) and Winthrop (3 listed, 3 indoor). Most indoor listings: Boston (6), Quincy (5) and Charlestown (4). Ask whether indoor means heated; listings span 21 cities in all.
At Worcester, 4 months average a low at or below 32°F, all of them off the water months by our personal watercraft rule. Worcester logs 129.7 nights at or below 32°F and 3.8 at or below 0°F a year; January, the coldest month, averages 17.1°F and is off the water for a personal watercraft.
After the last frost. The median last 32°F night is April 4 at Boston and April 23 at Worcester; the last 28°F hard freeze comes around March 28 and April 11. Our rule makes June the first month on the water at Boston and July at Worcester. That month Boston averages a 59.7°F low and a 76.2°F high. Reverse each winterization step first.
Massachusetts jet ski & PWC storage listings span 21 cities, led by Boston (10 listed), Quincy (5 listed), Charlestown (4 listed), Winthrop (3 listed) and Mashpee (2 listed). For outdoor winter parking, Boston (6 outdoor) and Quincy (5 outdoor) lead. Statewide, 38 list outdoor, 17 covered and 39 indoor or climate-controlled spaces. Compare the cities nearest you before October 21.
NOAA NCEI Climate Normals 1991-2020 (USW00014739, USW00094746); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).