A boat in New Hampshire is laid up for about 5 months a year at Concord, and the median first 32°F night arrives October 3 at Concord (NOAA 1991-2020). 15 boat storage facilities are listed in New Hampshire, 14 with indoor or climate-controlled space.
| Month | Concord high / low | boat | Concord snow | Manchester high / low | boat |
|---|---|---|---|---|---|
| Jan | 32° / 13° | laid up | 17.1 in | 34° / 17° | laid up |
| Feb | 35° / 15° | laid up | 16.9 in | 37° / 19° | laid up |
| Mar | 44° / 23° | laid up | 13.6 in | 46° / 27° | laid up |
| Apr | 58° / 33° | launch or haul-out | 2.5 in | 59° / 38° | launch or haul-out |
| May | 69° / 44° | launch or haul-out | 0.0 in | 70° / 48° | in the water |
| Jun | 78° / 54° | in the water | 0.0 in | 79° / 58° | in the water |
| Jul | 83° / 59° | in the water | 0.0 in | 84° / 64° | in the water |
| Aug | 82° / 57° | in the water | 0.0 in | 82° / 62° | in the water |
| Sep | 74° / 49° | in the water | 0.0 in | 75° / 54° | in the water |
| Oct | 61° / 38° | launch or haul-out | 0.8 in | 62° / 42° | launch or haul-out |
| Nov | 48° / 29° | laid up | 2.5 in | 50° / 33° | laid up |
| Dec | 37° / 20° | laid up | 14.3 in | 39° / 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 Concord has 4 months in the water (June to September), 3 of launch or haul-out and 5 laid up. By that rule a boat at Manchester has 5 months in the water (May to September), 2 of launch or haul-out and 5 laid up.
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 engine block, raw-water passages, outdrive and plumbing.
15 live listings in 10 cities; by listed type: 14 indoor, 14 covered and 15 outdoor (types overlap). No New Hampshire boat storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Extra Space Storage - Nashua | Nashua | indoor, outdoor, covered | Jet Ski | |
| MacCallum's Boathouse | Epsom | indoor, outdoor, covered | Jet Ski | |
| Jenness Hill Auto & Marine Storage | Meredith | indoor, outdoor, covered | Jet Ski | |
| Fay's Boat Yard | Gilford | indoor, outdoor, covered | Jet Ski | |
| Meredith Marina | Meredith | indoor, outdoor, covered | Jet Ski | |
| Lake Sunapee Marine | Sunapee | outdoor | ||
| Paugus Bay Marina | Laconia | indoor, outdoor, covered | Jet Ski | |
| Extra Space Storage - Manchester NH | Manchester | indoor, outdoor, covered | Jet Ski |
| City | Boat 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 |
| Sunapee | 1 | 0 | 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 boat rule Concord stays in the water through September and Manchester through September, then 3 months of launch or haul-out follow at Concord. 14 New Hampshire listings offer indoor or climate-controlled space.
5 at Concord (October to May) and 5 at Manchester (October to April), plus 3 and 2 months of launch or haul-out. Those laid up months hold 64.4 of the 67.7 inches of snow Concord averages a year (95%), which is the load on a cover or carport roof. At Concord a boat is in the water from June to September (4 months), against 5 at Manchester.
Of 15 live New Hampshire listings, 14 list indoor space and 0 climate-controlled units, against 15 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 10 cities in all.
At Concord, 5 months average a low at or below 32°F, all of them laid up months by our boat 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 laid up for a boat.
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 in the water at Concord and May at Manchester. That month Concord averages a 53.7°F low and a 77.8°F high. Reverse each winterization step first.
New Hampshire boat storage listings span 10 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, 15 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).