🌤 Weather at Coleman State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 10–62 °F | 48–75 °F | 24–66 °F | 0–29 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at First Connecticut Lake, 19 mi away, elevation 1,650 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Coleman State Park is a public state park in New Hampshire near Stewartstown in Coös County. Spanning 1,573 acres and established in 1956, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | New Hampshire |
| Nearest City | Stewartstown |
| County | Coös |
| Park Size | 1,573 acres |
| Established | 1956 |
| Google Rating | ⭐ 4.5/5 (400 reviews) |
Location & Getting There
Coleman State Park is located near Stewartstown, New Hampshire. The park’s coordinates are 44.8167, -71.3000.
Things to Do
New Hampshire state parks capture the rugged essence of New England, featuring the towering peaks of the White Mountains, pristine glacial lakes, and a brief but beautiful stretch of Atlantic coastline. Visitors can hike some of the most challenging and rewarding trails in the Northeast, including sections of the Appalachian Trail, swim in crystal-clear mountain lakes or ocean surf, camp in deep forest settings, fly fish for trout in fast-moving streams, and rock climb dramatic granite notches. The parks also encompass historic sites, including grand resort-era estates and early American settlements.
Best Time to Visit
Fall (late September to mid-October) is the most famous time to visit, drawing “leaf peepers” from around the world to witness the spectacular autumn colors in the White Mountains. Summer (July–August) is peak season for lakes and coastal beaches, offering warm days and cool nights. Winter turns the mountain parks into destinations for downhill and cross-country skiing, ice climbing, and snowmobiling. Spring (May–June) brings black flies (“bug season”) and muddy trails at higher elevations, though it’s excellent for waterfall viewing.
Visitor Tips
New Hampshire state parks charge day-use admission fees, typically $4-$5 per adult and $2 for children, though coastal beaches charge parking fees instead. Advanced day-use reservations are strongly recommended (and sometimes required) for popular parks like Franconia Notch (Flume Gorge) and Monadnock, especially on summer and fall weekends, as parking lots fill early. Weather in the White Mountains is notoriously unpredictable and can change rapidly — always carry layers and check the Mount Washington Observatory forecast before hiking at elevation.
Explore More New Hampshire State Parks
Coleman State Park is one of many outstanding state parks in New Hampshire. Discover more parks in our Best State Parks in New Hampshire guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Coleman State Park — 1,678 acres on Little Diamond Pond in Stewartstown — is one of the most remote state parks in New Hampshire, deep in the North Country near the Canadian border. The boreal forest of spruce, fir, and paper birch supports one of the highest moose densities in the state. Black bears, bobcats, and fishers roam the forest. Common loons nest on Diamond Pond. Spruce grouse — a boreal specialist — may be found on the trails. Winter brings snowmobiling on extensive trail networks.
Nearby Attractions
Dixville Notch State Park — 15 miles south — has the Table Rock formation and the famous Balsams resort (first-in-the-nation primary voting). Connecticut Lakes — 15 miles north — are the headwaters of the Connecticut River with world-class brook trout fishing. Pittsburg — 10 miles north — is the largest township in New England by area.
More parks nearby: Dixville Notch State Park is a short drive away, while Mollidgewock State Park lies a short drive away.
⛺ Camping at Coleman State Park: Campgrounds & Cabins
| Campsites | 29 sites — 29 primitive campsites (standard tent/RV sites plus sites with direct ATV/OHRV trail access, and 1 lean-to at $40-$50/night; standard sites $50/night), no electrical hookups; coin-operated showers, a dump station, and drinking water on-site; 10 mph boat-speed limit on Little Diamond Pond. |
|---|---|
| Cabins & Lodging | 7 rustic camper cabins (Brookie, Laker, Salmon, Rainbow, Abenaki, Mohawk, and Perch) at $65/night for up to 4 people (Perch sleeps 2): bunk bed, table with stools, solar-powered lighting, propane heater, outdoor picnic table and fire pit - linens NOT provided, no running water or bathroom, parking about 300 ft away (walk-in access). Separately, 5 furnished vacation lodges (Whiskey Jack, Osprey, Snowy Owl, Grey Jay, Marten Lodge Room) at $80-$195/night with full kitchen, full bathroom(s), gas fireplace, washer/dryer, and satellite TV - linens ARE provided. Pets are not allowed in any camper cabin or lodge; minimum 2-night stay (1-night stays considered if available); lodges bookable up to 12 months ahead. |
| Pets | Pets permitted at standard/tent campsites; not allowed in any camper cabin or lodge. |
| Reservations | Book via ReserveAmerica or call the park office at 603-237-5382; campsites bookable up to 11 months ahead, cabins/lodges up to 12 months ahead; $7 non-refundable online reservation fee; cancellation: 10+ days before arrival = full refund minus transaction fee, 4-9 days = full refund minus reservation fee plus one night's cost, 0-3 days = no refund; youth group reservations via headquarters at 603-271-3556. |
| Special sites | All campsites are ATV-trail accessible; dump station for registered campers only; coin-operated showers; boat and snowshoe rentals available; limited to no cell service; noted trout fishing on Little Diamond Pond and nearby streams. |
| Season notes | Campground and lodges open May 15 - October 11 (2026 season); closed for mud season April 3 - May 14; fall primitive camping available beyond the regular season; park unstaffed off-season. |
Camping questions about Coleman State Park
Can you camp at Coleman State Park?
Yes. Coleman State Park has 29 campsites. 29 primitive campsites (standard tent/RV sites plus sites with direct ATV/OHRV trail access, and 1 lean-to at $40-$50/night; standard sites $50/night), no electrical hookups; coin-operated showers, a dump station, and drinking water on-site; 10 mph boat-speed limit on Little Diamond Pond.
How do you reserve a campsite at Coleman State Park?
Book via ReserveAmerica or call the park office at 603-237-5382; campsites bookable up to 11 months ahead, cabins/lodges up to 12 months ahead; $7 non-refundable online reservation fee; cancellation: 10+ days before arrival = full refund minus transaction fee, 4-9 days = full refund minus reservation fee plus one night's cost, 0-3 days = no refund; youth group reservations via headquarters at 603-271-3556.
Are there cabins at Coleman State Park?
7 rustic camper cabins (Brookie, Laker, Salmon, Rainbow, Abenaki, Mohawk, and Perch) at $65/night for up to 4 people (Perch sleeps 2): bunk bed, table with stools, solar-powered lighting, propane heater, outdoor picnic table and fire pit - linens NOT provided, no running water or bathroom, parking about 300 ft away (walk-in access). Separately, 5 furnished vacation lodges (Whiskey Jack, Osprey, Snowy Owl, Grey Jay, Marten Lodge Room) at $80-$195/night with full kitchen, full bathroom(s), gas fireplace, washer/dryer, and satellite TV - linens ARE provided. Pets are not allowed in any camper cabin or lodge; minimum 2-night stay (1-night stays considered if available); lodges bookable up to 12 months ahead.
Are pets allowed at the Coleman State Park campground?
Pets permitted at standard/tent campsites; not allowed in any camper cabin or lodge.
Source: nhstateparks.org (verified July 2026). Details change seasonally — confirm when booking.
🐾 Dogs & Pets at Coleman State Park
- Pets allowed? statewide rule
- Many NH state parks allow pets year-round, but policies vary by park and some parks prohibit pets entirely.
- Leash rule statewide rule
- Standard or retractable leash not greater than 6 feet required; animals may not be left unattended.
- Beaches & swim areas statewide rule
- Pets are prohibited at beaches and designated swim areas seasonally from May 1 through September 30.
- Cabins & lodging statewide rule
- Pets are permitted at 13 campgrounds (including Bear Brook, Coleman, Greenfield, Lake Francis, Milan, Mollidgewock, Moose Brook, Pawtuckaway, Pillsbury, Sunapee and Umbagog); cabin/yurt rules vary by park — check before booking.
- Statewide exceptions statewide rule
- Monadnock, North Hampton State Beach, Odiorne Point and most of Rhododendron State Park prohibit pets year-round; Crawford Notch, Franconia Notch and Mount Washington allow pets only on hiking trails and designated dog-walk areas.
Are dogs allowed at Coleman State Park?
Many NH state parks allow pets year-round, but policies vary by park and some parks prohibit pets entirely. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via nhstateparks.org. More: New Hampshire state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Coleman State Park
From our editorial guides, matched to this park’s activities:
