A personal watercraft in Colorado is off the water for about 7 months a year at Denver, and the median first 32°F night arrives October 9 at Denver (NOAA 1991-2020). 31 jet ski & PWC storage facilities are listed in Colorado, 20 with indoor or climate-controlled space.
| Month | Denver high / low | personal watercraft | Grand Junction snow | Grand Junction high / low | personal watercraft |
|---|---|---|---|---|---|
| Jan | 45° / 19° | off the water | 4.5 in | 38° / 17° | off the water |
| Feb | 46° / 20° | off the water | 2.9 in | 46° / 24° | off the water |
| Mar | 56° / 28° | off the water | 1.8 in | 58° / 32° | off the water |
| Apr | 62° / 34° | off the water | 0.9 in | 66° / 38° | off the water |
| May | 71° / 44° | wetsuit weather | 0.1 in | 77° / 47° | on the water |
| Jun | 83° / 53° | on the water | 0.0 in | 89° / 57° | on the water |
| Jul | 90° / 60° | on the water | 0.0 in | 95° / 64° | on the water |
| Aug | 88° / 58° | on the water | 0.0 in | 91° / 62° | on the water |
| Sep | 80° / 50° | on the water | 0.0 in | 82° / 53° | on the water |
| Oct | 65° / 37° | off the water | 0.4 in | 67° / 40° | wetsuit weather |
| Nov | 53° / 26° | off the water | 1.9 in | 52° / 28° | off the water |
| Dec | 44° / 18° | off the water | 5.2 in | 39° / 18° | 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 Denver 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 Grand Junction has 5 months on the water (May to September), 1 of wetsuit weather and 6 off the water.
Colorado is hard-freeze country: Grand Junction logs about 137.2 nights at or below 32°F and 18.1 days that never thaw, enough to freeze any water left in the exhaust, cooling passages and pump housing.
31 live listings in 12 cities; by listed type: 20 indoor, 16 covered and 20 outdoor (types overlap). No Colorado jet ski & PWC storage listing publishes a rate on StowHelp.
| Facility | City | Listed storage | Listed amenities | Also listed for |
|---|---|---|---|---|
| Chatfield Marina | Littleton | indoor, outdoor, covered | Boat | |
| AJ Storage Specialists | Loveland | indoor, outdoor, covered | security cameras, gated entry | Boat |
| Hi Ball Crane Services | Denver | indoor, outdoor | Boat | |
| Fillmore Covered RV Storage | Colorado Springs | indoor, outdoor, covered | Boat | |
| Fort Collins Boat & RV Storage | Fort Collins | indoor, outdoor, covered | Boat | |
| Hidden Island Storage | Fort Collins | indoor, outdoor, covered | Boat | |
| Hi Ball Crane Services | Aurora | indoor, outdoor | Boat | |
| Stor-Rite RV & Boat Storage | Denver | |||
| Honey Bee RV Storage | Aurora | indoor, outdoor, covered | Boat | |
| Recreational Storage Solutions | Erie | indoor, outdoor, covered | Boat | |
| Marina at Cherry Creek | Englewood | indoor, outdoor | Boat | |
| Tamlin Storage | Colorado Springs | indoor, outdoor, covered | Boat | |
| Outdoor Storage Co | Parker | indoor, outdoor, covered | Boat | |
| Neighborhood Self Storage | Parker | indoor, outdoor, covered | Boat | |
| The Lake House at Cherry Creek | Greenwood Village | indoor, outdoor | Boat | |
| Outrig - Boulder County | Longmont | indoor, outdoor, covered | Boat | |
| NOCO Premier RV & Boat Storage | Johnstown | indoor, outdoor, covered | Boat | |
| Wakeboard & Water Ski Specialty (WWS Boats) | Denver |
| City | Jet Ski & PWC Storage listings | Indoor | Climate-controlled | Outdoor |
|---|---|---|---|---|
| Denver | 12 | 1 | 0 | 1 |
| Aurora | 4 | 4 | 0 | 4 |
| Colorado Springs | 3 | 3 | 0 | 3 |
| Parker | 3 | 3 | 0 | 3 |
| Fort Collins | 2 | 2 | 0 | 2 |
| Englewood | 1 | 1 | 0 | 1 |
| Erie | 1 | 1 | 0 | 1 |
| Greenwood Village | 1 | 1 | 0 | 1 |
| Johnstown | 1 | 1 | 0 | 1 |
| Littleton | 1 | 1 | 0 | 1 |
NOAA's 1991-2020 median first 32°F night is October 9 at Denver and October 16 at Grand Junction; winterize by September 25, two weeks ahead of the earlier date. By our personal watercraft rule Denver stays on the water through September and Grand Junction through September, then 1 month of wetsuit weather follow at Denver. 20 Colorado listings offer indoor or climate-controlled space.
7 at Denver (October to May) and 6 at Grand Junction (October to April), plus 1 and 1 months of wetsuit weather. Those off the water months hold 17.2 of the 17.7 inches of snow Grand Junction averages a year (97%), which is the load on a cover or carport roof. At Denver a personal watercraft is on the water from June to September (4 months), against 5 at Grand Junction.
Of 31 live Colorado listings, 20 list indoor space and 0 climate-controlled units, against 20 outdoor and 16 covered. By city: Denver (12 listed, 1 indoor), Aurora (4 listed, 4 indoor), Colorado Springs (3 listed, 3 indoor) and Parker (3 listed, 3 indoor). Most indoor listings: Aurora (4), Colorado Springs (3) and Parker (3). Ask whether indoor means heated; listings span 12 cities in all.
At Grand Junction, 5 months average a low at or below 32°F, all of them off the water months by our personal watercraft rule. Grand Junction logs 137.2 nights at or below 32°F and 3.5 at or below 0°F a year; January, the coldest month, averages 17.3°F and is off the water for a personal watercraft.
After the last frost. The median last 32°F night is May 5 at Denver and April 28 at Grand Junction; the last 28°F hard freeze comes around April 25 and April 13. Our rule makes June the first month on the water at Denver and May at Grand Junction. That month Denver averages a 53.0°F low and a 83.4°F high. Reverse each winterization step first.
Colorado jet ski & PWC storage listings span 12 cities, led by Denver (12 listed), Aurora (4 listed), Colorado Springs (3 listed), Parker (3 listed) and Fort Collins (2 listed). For outdoor winter parking, Aurora (4 outdoor) and Colorado Springs (3 outdoor) lead. Statewide, 20 list outdoor, 16 covered and 20 indoor or climate-controlled spaces. Compare the cities nearest you before October 9.
NOAA NCEI Climate Normals 1991-2020 (USW00003017, USW00023066); NOAA AOML hurricane impacts 1851-2025; StowHelp listings 2026-10-07 (methodology).