Lewisville, Texas, experiences a humid subtropical climate characterized by hot, humid summers and mild to cool winters. Average high temperatures range from 55.9°F (13.3°C) in January to 96°F (35.6°C) in July, while average lows vary from 35.2°F (1.8°C) in January to 75.8°F (24.3°C) in July. Annual precipitation averages around 38.5 inches (977.91 mm), with May typically being the wettest month, receiving approximately 4.67 inches (118.62 mm) of rainfall.
In response to these climatic conditions, Lewisville has implemented several environmental initiatives aimed at promoting sustainability and preserving natural resources. The city’s ‘Big Move: Sustainability’ plan focuses on efficient use of limited resources such as land, water, energy, and clean air to maintain a desirable quality of life for current and future residents. Notable achievements include an electricity reduction of over 3,868,074 kWh since 2015, resulting in cost savings exceeding $1,303,141, and the addition of 14 hybrid and 10 electric vehicles to the city fleet.
The Lewisville Lake Environmental Learning Area (LLELA) plays a pivotal role in the city’s environmental efforts. Spanning over 2,000 acres, LLELA is dedicated to the preservation and restoration of native Texas ecosystems and biodiversity. It offers opportunities for environmental education, research, and recreation, including hiking, birding, and kayaking.
Community involvement is also a cornerstone of Lewisville’s environmental strategy. Organizations like Keep Lewisville Beautiful engage residents through service and education to enhance the local environment. Their initiatives encompass litter abatement, waste reduction, resource conservation, and beautification projects, all aimed at making Lewisville a better place to live, work, and play.
Understanding Lewisville’s climate and participating in these environmental initiatives can help residents and visitors alike contribute to the city’s sustainability goals and enjoy its natural beauty responsibly.

