🌤 Weather at Dinosaur State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 30–71 °F | 60–85 °F | 35–76 °F | 20–42 °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 Hartford Brainard Field, 6 mi away, elevation 19 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
🦕 Trusted Guide to Connecticut’s Jurassic Trackway – Updated 2025
Walking Where Dinosaurs Walked
Beneath a striking 55,000-square-foot geodesic dome in Rocky Hill, Connecticut, over 500 dinosaur footprints lie preserved exactly where they were made 200 million years ago — frozen in Jurassic sandstone at Dinosaur State Park. Discovered accidentally in 1966 by a bulldozer operator, this site contains one of North America’s largest dinosaur track collections, with over 2,000 individual prints identified (1,500 reburied for preservation). The 80-acre park combines world-class paleontology with nature trails and an arboretum featuring plants descended from Mesozoic-era species — a place where deep time becomes tangible.
The Exhibit Center
The geodesic dome Exhibit Center is the park’s crown jewel. Beneath its soaring ceiling, visitors walk among hundreds of exposed three-toed tracks classified as Eubrontes — Connecticut’s official state fossil since 1991. These massive prints, each about 16 inches long, were likely made by a large carnivorous theropod dinosaur similar to Dilophosaurus. The exhibit includes dioramas recreating the Jurassic environment, interactive displays, fossil collections, and a life-size model showing what the track-maker may have looked like. Smaller Grallator and rare Otozoum tracks add to the diversity.
Trails & Arboretum
Outside the dome, 2-3 miles of nature trails wind through the park’s arboretum, which intentionally cultivates plant species descended from or reminiscent of Mesozoic vegetation — ginkgos, magnolias, ferns, and conifers that evoke the world the dinosaurs knew. A boardwalk crosses a red maple swamp, and diverse habitats support seasonal wildflowers and good birding.
Practical Tips
- From Hartford (10 miles): Take I-91 South to Exit 23, follow West Street to the park
- Entry fee: $6 adults, $2 children (6-12), free under 6
- Best time: Year-round (the dome is climate-controlled), but May-October for outdoor cast-making
- Plan 1-2 hours for the Exhibit Center — it’s genuinely fascinating for all ages
- For the cast-making activity, check the park website for current season dates and bring your own plaster of Paris
- This is a day-use park only — no camping, swimming, or fishing
- The park is a National Natural Landmark — one of the most important dinosaur track sites in eastern North America
- Combine with the Connecticut River Valley for more geology and scenery
Explore More Connecticut State Parks
Dinosaur State Park is one of many outstanding state parks in Connecticut. Discover more parks in our Best State Parks in Connecticut guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Dinosaur SP — features over 2,000 dinosaur footprints — one of the largest dinosaur track sites in North America. The 200-million-year-old Jurassic-era tracks were made by Dilophosaurus-like theropods. The park’s geodesic dome exhibit center, arboretum, and forest support white-tailed deer, songbirds, and box turtles. A National Natural Landmark.
Nearby Attractions
Rocky Hill — adjacent. Hartford — 10 miles north — state capital. Connecticut River — nearby.
Make it a road trip: Pair a visit with East Swamp Wildlife Management Area (a short drive away).
🐾 Dogs & Pets at Dinosaur State Park
- Pets allowed? statewide rule
- Pets on a leash are permitted in most Connecticut state parks and forests, but not in buildings, swimming areas or state park campgrounds.
- Leash rule statewide rule
- Pets must be leashed and under control at all times; in state forest camping areas the leash may be no longer than 7 feet.
- Beaches & swim areas statewide rule
- Pets are prohibited in swimming areas; Sherwood Island and Squantz Pond State Parks ban pets entirely April 15 - September 30.
- Cabins & lodging statewide rule
- Pets are banned from all state park campgrounds; they are allowed only in the American Legion, Pachaug and Salt Rock state forest campgrounds, but not on rustic cabin sites.
- Statewide exceptions statewide rule
- Pets prohibited year-round at Dinosaur State Park and in the formal gardens and beach at Harkness Memorial State Park.
Are dogs allowed at Dinosaur State Park?
Pets on a leash are permitted in most Connecticut state parks and forests, but not in buildings, swimming areas or state park campgrounds. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via portal.ct.gov. More: Connecticut state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Dinosaur State Park
From our editorial guides, matched to this park’s activities:
