A personal watercraft in New Hampshire is off the water for about 7 months a year at Concord, and the median first 32°F night arrives October 3 at Concord (NOAA 1991-2020). 14 jet ski & PWC storage facilities are listed in New Hampshire, 14 with indoor or climate-controlled space.
| Month | Concord high / low | personal watercraft | Concord snow | Manchester high / low | personal watercraft |
|---|---|---|---|---|---|
| Jan | 32° / 13° | off the water | 17.1 in | 34° / 17° | off the water |
| Feb | 35° / 15° | off the water | 16.9 in | 37° / 19° | off the water |
| Mar | 44° / 23° | off the water | 13.6 in | 46° / 27° | off the water |
| Apr | 58° / 33° | off the water | 2.5 in | 59° / 38° | off the water |
| May | 69° / 44° | wetsuit weather | 0.0 in | 70° / 48° | wetsuit weather |
| Jun | 78° / 54° | on the water | 0.0 in | 79° / 58° | on the water |
| Jul | 83° / 59° | on the water | 0.0 in | 84° / 64° | on the water |
| Aug | 82° / 57° | on the water | 0.0 in | 82° / 62° | on the water |
| Sep | 74° / 49° | wetsuit weather | 0.0 in | 75° / 54° | wetsuit weather |
| Oct | 61° / 38° | off the water | 0.8 in | 62° / 42° | off the water |
| Nov | 48° / 29° | off the water | 2.5 in | 50° / 33° | off the water |
| Dec | 37° / 20° | off the water | 14.3 in | 39° / 24° | 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 Concord 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 Manchester has 3 months on the water (June to August), 2 of wetsuit weather and 7 off the water.
New Hampshire is hard-freeze country: Concord logs about 164.8 nights at or below 32°F and 43.5 days that never thaw, enough to freeze any water left in the exhaust, cooling passages and pump housing.
14 live listings in 9 cities; by listed type: 14 indoor, 14 covered and 14 outdoor (types overlap). No New Hampshire jet ski & PWC storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Public Storage - Manchester NH | Manchester | indoor, outdoor, covered | Boat | |
| Vault Motor Storage - Merrimack | Merrimack | indoor, outdoor, covered | Boat | |
| New Hampshire Self Storage - Gilford | Gilford | indoor, outdoor, covered | Boat | |
| Runway Storage | Laconia | indoor, outdoor, covered | Boat | |
| Glendale Marina | Gilford | indoor, outdoor, covered | Boat | |
| Extra Space Storage - Manchester NH | Manchester | indoor, outdoor, covered | Boat | |
| Extra Space Storage - Concord NH | Concord | indoor, outdoor, covered | Boat | |
| Ambrose Cove Marina | Alton | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Paugus Bay Marina | Laconia | indoor, outdoor, covered | Boat |
| City | Jet Ski & PWC Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Gilford | 3 | 3 | 0 | 3 |
| Laconia | 2 | 2 | 0 | 2 |
| Manchester | 2 | 2 | 0 | 2 |
| Meredith | 2 | 2 | 0 | 2 |
| Alton | 1 | 1 | 0 | 1 |
| Concord | 1 | 1 | 0 | 1 |
| Epsom | 1 | 1 | 0 | 1 |
| Merrimack | 1 | 1 | 0 | 1 |
| Nashua | 1 | 1 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is October 3 at Concord and October 19 at Manchester; winterize by September 19, two weeks ahead of the earlier date. By our personal watercraft rule Concord stays on the water through August and Manchester through August, then 2 months of wetsuit weather follow at Concord. 14 New Hampshire listings offer indoor or climate-controlled space.
7 at Concord (September to May) and 7 at Manchester (September to May), plus 2 and 2 months of wetsuit weather. Those off the water months hold 67.7 of the 67.7 inches of snow Concord averages a year (100%), which is the load on a cover or carport roof. At Concord a personal watercraft is on the water from June to August (3 months), against 3 at Manchester.
Of 14 live New Hampshire listings, 14 list indoor space and 0 climate-controlled units, against 14 outdoor and 14 covered. By city: Gilford (3 listed, 3 indoor), Laconia (2 listed, 2 indoor), Manchester (2 listed, 2 indoor) and Meredith (2 listed, 2 indoor). Most indoor listings: Gilford (3), Laconia (2) and Manchester (2). Ask whether indoor means heated; listings span 9 cities in all.
At Concord, 5 months average a low at or below 32°F, all of them off the water months by our personal watercraft rule. Concord logs 164.8 nights at or below 32°F and 12.8 at or below 0°F a year; January, the coldest month, averages 12.9°F and is off the water for a personal watercraft.
After the last frost. The median last 32°F night is May 8 at Concord and April 21 at Manchester; the last 28°F hard freeze comes around April 27 and April 7. Our rule makes June the first month on the water at Concord and June at Manchester. That month Concord averages a 53.7°F low and a 77.8°F high. Reverse each winterization step first.
New Hampshire jet ski & PWC storage listings span 9 cities, led by Gilford (3 listed), Laconia (2 listed), Manchester (2 listed), Meredith (2 listed) and Alton (1 listed). For outdoor winter parking, Gilford (3 outdoor) and Laconia (2 outdoor) lead. Statewide, 14 list outdoor, 14 covered and 14 indoor or climate-controlled spaces. Compare the cities nearest you before October 3.
NOAA NCEI Climate Normals 1991-2020 (USW00014745, USW00014710); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).