Best time to visit First State National Historical Park
April, May and October are the best balance at First State National Historical Park: mild and dry for the park (average highs 61° to 71°F), with crowds from quiet to very busy. October is busiest, with about 36,000 visitors. February 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
- Wilmington Porter Rsch, DE USC00079605
- Lat / lon
- 39.77, -75.54
- Elevation
- 270 ft
- From park center
- 4.4 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Mar | Aprbest | Maybest | Jun | Jul | Aug | Sep | Octbest | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 38° | 41° | 49° | 61° | 71° | 79° | 84° | 82° | 75° | 63° | 53° | 43° | 62° |
| Low, °F | 24° | 25° | 32° | 43° | 52° | 62° | 67° | 66° | 59° | 47° | 37° | 29° | 45° |
| Precipitation, in | 3.7 | 3.0 | 4.7 | 4.1 | 3.8 | 4.7 | 5.2 | 4.4 | 5.1 | 4.1 | 3.3 | 4.4 | 50.3 |
| Snow, in | 5.3 | 4.0 | 1.8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.1 | 0.8 | 12.0 |
| Daylight, h:mm | 9:38 | 10:38 | 11:49 | 13:12 | 14:21 | 14:59 | 14:44 | 13:44 | 12:24 | 11:05 | 9:55 | 9:22 | |
| Visitors, thousands | 4 | 4 | 10 | 11 | 18 | 23 | 27 | 18 | 14 | 36 | 11 | 7 | 184 |
| Crowds | Quiet | Quiet | Quiet | Quiet | Moderate | Busy | Busy | Moderate | Moderate | Very busy | Moderate | Quiet | |
| Weather | Cold | Cool | Cool | Mild | Mild | Mild, wet | Hot | Hot | Mild, wet | Mild | Cool | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 38° | 24° | 3.7 | 5.3 | 9:38 | 4,000 | Quiet | Cold |
| February | 41° | 25° | 3.0 | 4.0 | 10:38 | 4,100 | Quiet | Cool |
| March | 49° | 32° | 4.7 | 1.8 | 11:49 | 9,800 | Quiet | Cool |
| Aprilbest | 61° | 43° | 4.1 | 0 | 13:12 | 11,000 | Quiet | Mild |
| Maybest | 71° | 52° | 3.8 | 0 | 14:21 | 18,000 | Moderate | Mild |
| June | 79° | 62° | 4.7 | 0 | 14:59 | 23,000 | Busy | Mild, wet |
| July | 84° | 67° | 5.2 | 0 | 14:44 | 27,000 | Busy | Hot |
| August | 82° | 66° | 4.4 | 0 | 13:44 | 18,000 | Moderate | Hot |
| September | 75° | 59° | 5.1 | 0 | 12:24 | 14,000 | Moderate | Mild, wet |
| Octoberbest | 63° | 47° | 4.1 | 0 | 11:05 | 36,000 | Very busy | Mild |
| November | 53° | 37° | 3.3 | 0.1 | 9:55 | 11,000 | Moderate | Cool |
| December | 43° | 29° | 4.4 | 0.8 | 9:22 | 7,000 | Quiet | Cool |
| Year | 62° | 45° | 50.3 | 12.0 | 184,000 | |||
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 84°F
- Coldest nights January, average low 24°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 184,000 (2023–2025 average)
- States Delaware and Pennsylvania
Closures, reservations and alerts: First State National Historical Park on nps.gov
Nearby
- Valley Forge National Historical ParkBest: Apr, May and Nov · Pennsylvania
- Independence National Historical ParkBest: Apr, Oct and Nov · Pennsylvania
- Fort McHenry National Monument and Historic ShrineBest: May, Oct and Nov · Maryland
- Morristown National Historical ParkBest: Apr and May · New Jersey