Best time to visit Valley Forge National Historical Park
April, May and November are the best balance at Valley Forge National Historical Park: mild and dry for the park (average highs 56° to 75°F), with crowds from busy to very busy. July is busiest, with about 233,000 visitors. January is the quietest, with highs near 41°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Phoenixville 1 E, PA USC00366927
- Lat / lon
- 40.12, -75.49
- Elevation
- 85 ft
- From park center
- 3 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Aprbest | Maybest | Jun | Jul | Aug | Sep | Oct | Novbest | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 41° | 44° | 53° | 65° | 75° | 83° | 88° | 86° | 79° | 67° | 56° | 45° | 65° |
| Low, °F | 23° | 24° | 31° | 41° | 51° | 61° | 66° | 64° | 56° | 44° | 34° | 27° | 44° |
| Precipitation, in | 3.1 | 2.9 | 3.7 | 3.5 | 3.3 | 3.9 | 4.6 | 4.4 | 4.4 | 3.9 | 3.4 | 4.1 | 45.1 |
| Snow, in | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Daylight, h:mm | 9:37 | 10:37 | 11:49 | 13:12 | 14:22 | 15:00 | 14:45 | 13:45 | 12:24 | 11:04 | 9:54 | 9:20 | |
| Visitors, thousands | 61 | 85 | 133 | 164 | 197 | 212 | 233 | 195 | 152 | 200 | 139 | 86 | 1,855 |
| Crowds | Quiet | Moderate | Busy | Busy | Very busy | Very busy | Very busy | Very busy | Busy | Very busy | Busy | Moderate | |
| Weather | Cool | Cool | Cool | Mild | Mild | Hot | Hot | Hot | Mild, wet | Mild, wet | Mild | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 41° | 23° | 3.1 | – | 9:37 | 61,000 | Quiet | Cool |
| February | 44° | 24° | 2.9 | – | 10:37 | 85,000 | Moderate | Cool |
| March | 53° | 31° | 3.7 | – | 11:49 | 133,000 | Busy | Cool |
| Aprilbest | 65° | 41° | 3.5 | – | 13:12 | 164,000 | Busy | Mild |
| Maybest | 75° | 51° | 3.3 | – | 14:22 | 197,000 | Very busy | Mild |
| June | 83° | 61° | 3.9 | – | 15:00 | 212,000 | Very busy | Hot |
| July | 88° | 66° | 4.6 | – | 14:45 | 233,000 | Very busy | Hot |
| August | 86° | 64° | 4.4 | – | 13:45 | 195,000 | Very busy | Hot |
| September | 79° | 56° | 4.4 | – | 12:24 | 152,000 | Busy | Mild, wet |
| October | 67° | 44° | 3.9 | – | 11:04 | 200,000 | Very busy | Mild, wet |
| Novemberbest | 56° | 34° | 3.4 | – | 9:54 | 139,000 | Busy | Mild |
| December | 45° | 27° | 4.1 | – | 9:20 | 86,000 | Moderate | Cool |
| Year | 65° | 44° | 45.1 | – | 1,855,000 | |||
Year: average high and low, total precipitation and snowfall, total visitors. T = trace (under 0.05 in). – = not measured at this station. Updated .
- Hottest July, average high 88°F
- Coldest nights January, average low 23°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 1,855,000 (2023–2025 average)
- State Pennsylvania
Closures, reservations and alerts: Valley Forge National Historical Park on nps.gov
Nearby
- Independence National Historical ParkBest: Apr, Oct and Nov · Pennsylvania
- First State National Historical ParkBest: Apr, May and Oct · Delaware and Pennsylvania
- Morristown National Historical ParkBest: Apr and May · New Jersey
- Delaware Water Gap National Recreation AreaBest: Apr and May · New Jersey and Pennsylvania