Many outdoor attractions cannot operate in colder conditions. Water rides close when temperatures plunge below 50? F but many other types of rides cannot run in the cold. Outdoor roller coasters have a minimum operating temperature in the 40s or 50s.

The temperature at which roller coasters close varies by the specific ride and its manufacturer, but most major parks begin closing high-speed coasters when temperatures drop below 40°F (4°C). For example, parks like Hersheypark and Carowinds have strict guidelines: some rides may close at 41°F, while others, particularly those with complex hydraulic systems or specific wheel compounds, may close at 34°F. Water-based attractions typically have a much higher threshold, often closing when the temperature dips below 65°F. The primary safety concern is that cold weather can affect the viscosity of the lubricants in the bearings and the elasticity of the nylon or urethane wheels, potentially causing the train to move too slowly and "valley" (stop between hills). Additionally, cold weather can affect the sensors and braking systems, leading computers to automatically shut down the ride for guest safety.