A personal watercraft in Idaho is off the water for about 7 months a year at Boise, and the median first 32°F night arrives September 18 at Pocatello (NOAA 1991-2020). 14 jet ski & PWC storage facilities are listed in Idaho, 14 with indoor or climate-controlled space.
| Month | Boise high / low | personal watercraft | Pocatello snow | Pocatello high / low | personal watercraft |
|---|---|---|---|---|---|
| Jan | 39° / 26° | off the water | 8.5 in | 34° / 17° | off the water |
| Feb | 46° / 29° | off the water | 7.6 in | 39° / 20° | off the water |
| Mar | 56° / 35° | off the water | 4.1 in | 51° / 28° | off the water |
| Apr | 62° / 40° | off the water | 2.6 in | 59° / 33° | off the water |
| May | 72° / 48° | wetsuit weather | 0.4 in | 69° / 40° | wetsuit weather |
| Jun | 81° / 54° | on the water | 0.0 in | 79° / 46° | on the water |
| Jul | 93° / 62° | on the water | 0.0 in | 89° / 52° | on the water |
| Aug | 91° / 61° | on the water | 0.0 in | 88° / 51° | on the water |
| Sep | 80° / 53° | on the water | 0.0 in | 77° / 42° | on the water |
| Oct | 65° / 42° | off the water | 1.2 in | 62° / 33° | off the water |
| Nov | 49° / 32° | off the water | 4.0 in | 46° / 24° | off the water |
| Dec | 39° / 25° | off the water | 10.1 in | 34° / 17° | 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 Boise has 4 months on the water (June to September), 1 of wetsuit weather and 7 off the water. By that rule a personal watercraft at Pocatello has 4 months on the water (June to September), 1 of wetsuit weather and 7 off the water.
Idaho is hard-freeze country: Pocatello logs about 167.4 nights at or below 32°F and 35.8 days that never thaw, enough to freeze any water left in the exhaust, cooling passages and pump housing.
14 live listings in 4 cities; by listed type: 14 indoor, 14 covered and 14 outdoor (types overlap). No Idaho jet ski & PWC storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Atlas Storage - Coeur d'Alene | Coeur D'Alene | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Mile High Marina | McCall | indoor, outdoor, covered | Boat | |
| Hagadone Marine Group | Coeur D'Alene | indoor, outdoor, covered | Boat | |
| Simply Storage Idaho | Boise | indoor, outdoor, covered | Boat | |
| Shadow Storage - Post Falls | Post Falls | indoor, outdoor, covered | Boat | |
| Undercover Boat and RV Storage | Post Falls | indoor, outdoor, covered | Boat | |
| Paradigm Storage McCall | McCall | indoor, outdoor, covered | Boat | |
| Simco Boat and RV Storage | Boise | indoor, outdoor, covered | Boat |
| City | Jet Ski & PWC Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Coeur D'Alene | 5 | 5 | 0 | 5 |
| Boise | 4 | 4 | 0 | 4 |
| Post Falls | 3 | 3 | 0 | 3 |
| McCall | 2 | 2 | 0 | 2 |
NOAA's 1991-2020 median first 32°F night is October 21 at Boise and September 18 at Pocatello; winterize by September 4, two weeks ahead of the earlier date. By our personal watercraft rule Boise stays on the water through September and Pocatello through September, then 1 month of wetsuit weather follow at Boise. 14 Idaho listings offer indoor or climate-controlled space.
7 at Boise (October to May) and 7 at Pocatello (October to May), plus 1 and 1 months of wetsuit weather. Those off the water months hold 38.1 of the 38.5 inches of snow Pocatello averages a year (99%), which is the load on a cover or carport roof. At Boise a personal watercraft is on the water from June to September (4 months), against 4 at Pocatello.
Of 14 live Idaho listings, 14 list indoor space and 0 climate-controlled units, against 14 outdoor and 14 covered. By city: Coeur D'Alene (5 listed, 5 indoor), Boise (4 listed, 4 indoor), Post Falls (3 listed, 3 indoor) and McCall (2 listed, 2 indoor). Most indoor listings: Coeur D'Alene (5), Boise (4) and Post Falls (3). Ask whether indoor means heated; listings span 4 cities in all.
At Pocatello, 5 months average a low at or below 32°F, all of them off the water months by our personal watercraft rule. Pocatello logs 167.4 nights at or below 32°F and 8.1 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 24 at Boise and May 23 at Pocatello; the last 28°F hard freeze comes around April 2 and May 6. Our rule makes June the first month on the water at Boise and June at Pocatello. That month Boise averages a 54.1°F low and a 81.4°F high. Reverse each winterization step first.
Idaho jet ski & PWC storage listings span 4 cities, led by Coeur D'Alene (5 listed), Boise (4 listed), Post Falls (3 listed) and McCall (2 listed). For outdoor winter parking, Coeur D'Alene (5 outdoor) and Boise (4 outdoor) lead. Statewide, 14 list outdoor, 14 covered and 14 indoor or climate-controlled spaces. Compare the cities nearest you before September 18.
NOAA NCEI Climate Normals 1991-2020 (USW00024131, USW00024156); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).