Trimountain State Park Scenic Reserve
About
Trimountain State Park Scenic Reserve is a 153-acre park in Connecticut, about 3.3 miles from the town of Durham. For the most comfortable weather, aim for late spring or early fall. Typical averages from a nearby weather station in Meriden show May highs around 70°F and September highs around 75°F. That station sits at about 100 feet, and the park itself is likely higher, so expect it to run a little cooler. Several outings lie within a few miles. Lone Pine Trail is about 1.9 miles away, and Cooks Lane Trail and North Slope are each about 2.6 miles off. Paddlers can head to the Coginchaug River, roughly 2.8 miles away.
Park size
153 acres
Location
Trimountain State Park Scenic Reserve
Connecticut
Data source: USGS PAD-US 4.1 (Protected Areas Database, public domain)
Facts about this place
When to go
Best time to go: Apr–Oct. The mildest months here, with typical highs of 60–84°F and lows of 38–63°F.
Typical monthly averages (not a forecast) from the Meriden Markham Muni Ap, CT weather station, 6.2 mi away. High / low in °F.
- Jan37° high19° low
- Feb39° high20° low
- Mar47° high28° low
- Apr60° high38° low
- May70° high48° low
- Jun79° high57° low
- Jul84° high63° low
- Aug82° high61° low
- Sep75° high54° low
- Oct64° high42° low
- Nov52° high32° low
- Dec42° high24° low
Nearby
- Lone Pine TrailHiking1.9 mi
Cooks Lane TrailHikingPhoto: bellemarematt, CC BY-SA 2.0 (via Flickr)2.6 mi- North SlopeHikingPhoto: bellemarematt, CC BY-SA 2.0 (via Flickr)2.6 mi
Coginchaug RiverCanoeingPhoto: Ceolaf, CC BY-SA 3.0 (via Wikimedia Commons)2.8 mi- Bear RockRock climbing5.1 mi
- Right KneeRock climbing7.4 mi
- Hammonasset RiverCanoeing7.4 mi
- Left LegRock climbing7.6 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Best time to visit Trimountain State Park Scenic Reserve
Best months: April and June–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
37° / 19°
10 wet
Feb
39° / 20°
9 wet
Mar
47° / 28°
10 wet
Apr
60° / 38°
11 wet
May
70° / 48°
13 wet
Jun
79° / 57°
12 wet
Jul
84° / 63°
12 wet
Aug
82° / 61°
12 wet
Sep
75° / 54°
11 wet
Oct
64° / 42°
12 wet
Nov
52° / 32°
10 wet
Dec
42° / 24°
11 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Meriden Markham Muni Ap, CT, 6.2 mi away at 103 ft. We don't have this place's elevation, so higher spots nearby can run cooler. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
