Best time to visit George Rogers Clark National Historical Park
March and October are the best balance at George Rogers Clark National Historical Park: mild and dry for the park (average highs 55° to 70°F), with quiet crowds. May is busiest, with about 29,000 visitors. February is the quietest, with highs near 45°F.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
Month by month
- Station
- Vincennes 5 NE, IN USC00129113
- Lat / lon
- 38.74, -87.49
- Elevation
- 452 ft
- From park center
- 4.9 mi
- Normals
- 1991–2020
- Visits
- 2023–2025
| Field | Jan | Feb | Marbest | Apr | May | Jun | Jul | Aug | Sep | Octbest | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High, °F | 40° | 45° | 55° | 67° | 77° | 86° | 89° | 88° | 82° | 70° | 56° | 44° | 67° |
| Low, °F | 22° | 24° | 33° | 44° | 55° | 64° | 66° | 64° | 57° | 45° | 35° | 26° | 45° |
| Precipitation, in | 3.0 | 2.5 | 3.6 | 4.9 | 5.5 | 4.8 | 4.6 | 3.3 | 3.6 | 3.6 | 4.0 | 3.4 | 46.8 |
| Snow, in | 2.7 | 2.1 | 0.5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 3.0 | 8.5 |
| Daylight, h:mm | 9:44 | 10:41 | 11:50 | 13:09 | 14:15 | 14:51 | 14:37 | 13:40 | 12:23 | 11:07 | 10:01 | 9:28 | |
| Visitors, thousands | 3 | 4 | 6 | 18 | 29 | 13 | 24 | 16 | 10 | 7 | 5 | 6 | 142 |
| Crowds | Quiet | Quiet | Quiet | Busy | Very busy | Moderate | Very busy | Busy | Moderate | Quiet | Quiet | Quiet | |
| Weather | Cold | Cool | Mild | Mild, wet | Mild, wet | Hot | Hot | Hot | Hot | Mild | Mild, wet | Cool |
| Month | High °F | Low °F | Precip., in | Snow, in | Daylight | Visitors | Crowds | Weather |
|---|---|---|---|---|---|---|---|---|
| January | 40° | 22° | 3.0 | 2.7 | 9:44 | 2,700 | Quiet | Cold |
| February | 45° | 24° | 2.5 | 2.1 | 10:41 | 3,600 | Quiet | Cool |
| Marchbest | 55° | 33° | 3.6 | 0.5 | 11:50 | 6,100 | Quiet | Mild |
| April | 67° | 44° | 4.9 | 0 | 13:09 | 18,000 | Busy | Mild, wet |
| May | 77° | 55° | 5.5 | 0 | 14:15 | 29,000 | Very busy | Mild, wet |
| June | 86° | 64° | 4.8 | 0 | 14:51 | 13,000 | Moderate | Hot |
| July | 89° | 66° | 4.6 | 0 | 14:37 | 24,000 | Very busy | Hot |
| August | 88° | 64° | 3.3 | 0 | 13:40 | 16,000 | Busy | Hot |
| September | 82° | 57° | 3.6 | 0 | 12:23 | 10,000 | Moderate | Hot |
| Octoberbest | 70° | 45° | 3.6 | 0 | 11:07 | 6,900 | Quiet | Mild |
| November | 56° | 35° | 4.0 | 0.2 | 10:01 | 5,400 | Quiet | Mild, wet |
| December | 44° | 26° | 3.4 | 3.0 | 9:28 | 5,900 | Quiet | Cool |
| Year | 67° | 45° | 46.8 | 8.5 | 142,000 | |||
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 89°F
- Coldest nights January, average low 22°F
- Source NOAA National Centers for Environmental Information; National Park Service
- Visitors a year about 142,000 (2023–2025 average)
- State Indiana
Closures, reservations and alerts: George Rogers Clark National Historical Park on nps.gov
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