Colorado's campgrounds range from about 3,500 feet on the eastern plains to well above 10,000 feet in the mountains. Every thousand feet of elevation brings cooler temperatures and a shorter snow-free season. That is why one weekend can offer warm desert camping near Grand Junction and snowbound roads at a high trailhead only a few hours away. Plan the place first, then the dates.
Seasons by elevation
| Zone | Examples | Typical comfortable season | Watch for |
|---|---|---|---|
| Eastern plains and Front Range reservoirs | Chatfield, Cherry Creek, Boyd Lake, Jackson Lake | Spring through fall; some loops year-round | Summer heat, wind, sudden storms |
| Western valleys and canyon country | Grand Valley, Colorado National Monument, Four Corners | Spring and fall are best | Hot summers, flash floods, cold winter nights |
| Foothills and lower forests | Golden Gate Canyon, Pike National Forest near Denver | Roughly May through October | Spring snow, fire restrictions in dry spells |
| Mountain valleys | Estes Park area, Buena Vista, Gunnison valley | Late May or June through September | Frosty nights, afternoon thunderstorms |
| High country | Lakes and trailheads around 10,000 feet and above | Usually late June to mid-September | Lingering snow, lightning, freezing nights |
Each campground's listing on Recreation.gov or the CPW website shows its official opening and closing dates. High campgrounds can open late in heavy snow years, and water systems are sometimes turned on after the official opening.
Month by month
March to April
Mountain campgrounds are mostly closed and snowbound. This is prime time for desert camping on the Western Slope and in southwest Colorado, and Great Sand Dunes' Pinon Flats Campground opens April 1. Front Range state parks with year-round loops see occasional heavy, wet spring snows. Some forest roads stay closed into spring; the Pike National Forest's Rampart Range road, for example, closes to passenger vehicles from December 1 to April 1 and can stay closed longer.
May
Foothill and lower-forest campgrounds open, often around Memorial Day. Rivers rise with snowmelt, so pick sites well above the water. High trails and passes are still snowy. Nights are cold anywhere above about 8,000 feet.
June
Long days and green meadows. Many mountain campgrounds open, though the highest may still hold snow early in the month. Mosquitoes peak near lakes and wetlands. Great Sand Dunes is at its busiest when Medano Creek flows.
July and August
The full high country is open, and it is the busiest camping season in the state. The monsoon pattern brings frequent afternoon thunderstorms with lightning, hail and sudden temperature drops. Plan to be off ridges and summits by early afternoon. Fire restrictions are common in dry years and can change week to week.
September
Many Coloradans' favorite month. Aspens turn gold, typically from mid to late September depending on elevation and latitude, crowds thin after Labor Day and storms ease. Nights drop below freezing at high elevations, and some higher campgrounds close for the season in September. Elk bugle in the mountain meadows.
October and November
Big game hunting seasons fill many forest roads with hunting camps; see our hunting season camping guide. Snow arrives in the mountains. Lower state parks, BLM canyon country and the Front Range foothills still offer good camping on mild days. Several national park campgrounds close, including Mesa Verde's Morefield Campground for the winter.
December to February
True winter. Camping is still possible: CPW rents cabins and yurts year-round at several parks, some state park loops stay open with limited services, and Rocky Mountain National Park offers first-come winter camping at open campgrounds. Bring a four-season tent or sleep in a cabin, and plan for nights far below freezing.
Shoulder-season tips
- Check road status as well as the campground. A campground may be open while the forest road to it is closed or muddy.
- Bring water. Early and late in the season, campground water may be shut off.
- Size your sleeping bag for at least ten to fifteen degrees colder than the forecast low.
- Expect mud. Spring thaw makes many dirt roads and trails soft; driving on them causes damage and can get you stuck.
- Watch for avalanche terrain if you go into the high country in winter or early spring. Snow-covered slopes above trails and roads can slide.
Examples from specific campgrounds
- Golden Gate Canyon State Park: CPW says the Aspen Meadow tent campground typically closes from late September to mid-May, while Reverend's Ridge stays open at limited capacity in winter.
- Chatfield State Park: CPW says full hookups are seasonal, electric-only sites are available year-round, and only one loop stays open in winter.
- Rocky Mountain National Park: in 2026, the first-come Longs Peak Campground ran from July 2 to September 8.
- Maroon Bells-Snowmass: the Forest Service notes the Four Pass Loop is often snowbound from October through June.
The two o'clock rule
From late June through August, assume storms will build by early afternoon in the mountains. Hike early, set camp in a sheltered spot below treeline and have rain gear on hand by lunch. Our safety guide covers lightning in detail.
Frequently asked questions
When does camping season start in Colorado?
It depends on elevation. Low-elevation state parks on the plains and in western valleys can be comfortable from spring, while many national forest campgrounds in the mountains open around late May, and the highest campgrounds may not be snow-free until late June or July. Check each campground's listed season.
What is the best month to camp in Colorado?
For the high mountains, July through early September offers the most reliable access, with August and September often the most settled. September adds golden aspens and fewer crowds, though nights are colder and some high campgrounds close after Labor Day.
Can you camp in Colorado in winter?
Yes, with preparation. Some state park campgrounds stay open in winter at reduced capacity, CPW rents cabins and yurts year-round at several parks, and Rocky Mountain National Park offers first-come winter camping. Expect snow, subfreezing nights and limited services.
When is monsoon season in Colorado?
The North American monsoon typically brings moisture to Colorado in July and August, producing frequent afternoon thunderstorms in the mountains. Plan hikes and camp chores for the morning and be off exposed terrain by early afternoon.
Sources
- CPW: Golden Gate Canyon State Park camping and lodging
- CPW: Chatfield State Park camping and lodging
- CPW: Cabins
- NPS: Rocky Mountain National Park campgrounds
- NPS: Great Sand Dunes camping
- NPS: Mesa Verde operating hours and seasons
- White River NF: Four Pass Loop
- Pike-San Isabel NF: South Platte Ranger District
- NWS Colorado lightning resource page
Checked against official agency sources in October 2026. Fees, reservation windows, fire orders and closures change often; the agency pages linked above are always the final word. See how we research.