January
January visitability 44, crowd 10, value 48.
This page lists month windows for George Rogers Clark National Historical Park from the checked-in NPS snapshot and the dated source cards on the page.
Answer Brief
January visitability 44, crowd 10, value 48.
February visitability 46, crowd 10, value 51.
March visitability 51, crowd 18, value 54.
April visitability 56, crowd 30, value 57.
May visitability 58, crowd 48, value 58.
June visitability 60, crowd 68, value 58.
July visitability 59, crowd 86, value 55.
August visitability 59, crowd 82, value 55.
September visitability 61, crowd 58, value 59.
October visitability 60, crowd 34, value 60.
November visitability 54, crowd 18, value 56.
December visitability 48, crowd 10, value 52.
How NPS Sounds modeled audio works
Read the NPS Sounds methodology and about NPS Sounds for how month windows are assembled.
Data Behind This Reading
George Rogers Clark National Historical Park is identified as National Historical Park with NPS code gero.
SourceOfficial alerts should be verified on the NPS page. This site uses a checked-in snapshot, not a live operations feed.
SourceThe weather in the area is quite typical for the Midwest. The average temperature for the winter months is in the mid 30s, but the summers can often be hot and humid with temperatures reaching into the 90s.
Sourcebest_time page source cards come from the data snapshot October 27, 2026.
SourceNational Park
Best primary window for Indiana Dunes: September, with June and October as strong shoulder months.
National Memorial
Best primary window for Lincoln Boyhood: September, with June and October as strong shoulder months.
National Lakeshore
Best primary window for Apostle Islands: September, with June and October as strong shoulder months.
National Historical Park
Best primary window for Brown v. Board of Education: September, with June and October as strong shoulder months.