Thaddeus Kosciuszko National Memorial
Trailie
Build your Thaddeus Kosciuszko National Memorial itinerary
Tell Trailie your dates, pace, and interests — get a day-by-day Thaddeus Kosciuszko National Memorial plan with hikes, drives, and must-see stops.
Thaddeus Kosciuszko National Memorial at a glance
- Best time
- March–May, October–November
- Trip length
- 2–4 hours to 1 day
- Don't miss
- Historic grounds and interpretive exhibits at Thaddeus Kosciuszko National Memorial
- Nearby city
- Philadelphia, PA
Explore this park
About Thaddeus Kosciuszko National Memorial
Visit the house where wounded Polish freedom fighter Thaddeus Kosciuszko lived and hear how this brilliant military engineer designed successful fortifications during the American Revolution. See the room where he received notable visitors such as Chief Little Turtle and Thomas Jefferson.
No current NPS alerts
The National Park Service has no active alerts listed for Thaddeus Kosciuszko National Memorial. Conditions change quickly — check again before you go.
Source: National Park Service (as of Nov 10, 2026). Official Thaddeus Kosciuszko National Memorial page on nps.gov
Weather Information
- Summer
are typically hot and muggy, fall and spring are generally mild, and winter is cold.
Snowfall is highly variable, with some winters bringing only light snow and others bringing several major snowstorms, with the normal seasonal snowfall standing at 22.4 in (57 cm). Precipitation is generally spread throughout the year, with eight to twelve wet days per month.
Operating Hours
National Memorial
Closed for the season. Check back in Spring for an opening date.
- MondayClosed
- TuesdayClosed
- WednesdayClosed
- ThursdayClosed
- FridayClosed
- SaturdayClosed
- SundayClosed
Common questions
Planning Thaddeus Kosciuszko National Memorial
The summary above covers timing and highlights. These go deeper on reservations, crowds, and logistics.
Reservation rules vary by season and activity for Thaddeus Kosciuszko National Memorial. See Overview on this page for fees, timed entry, and campground details before you travel.
