Stillwater, Minnesota, experiences a Humid Continental Mild Summer climate, characterized by warm, wet summers and cold, snowy winters. Average annual temperatures range from a low of 36.5°F to a high of 55.3°F, with annual precipitation averaging 34.5 inches. The growing season typically spans from late April to early October, providing approximately 150-180 frost-free days each year.
Seasonal Climate Overview
Summer
Summers in Stillwater are warm and wet, with average high temperatures reaching 81°F in July. This season also sees the highest precipitation, averaging 4.2 inches in June.
Winter
Winters are cold and snowy, with average low temperatures dropping to 9°F in January. Snowfall is common, contributing to the region’s winter landscape.
Environmental Initiatives
Stillwater is actively engaged in several environmental initiatives aimed at promoting sustainability and protecting natural resources.
Energy Action Plan
The city’s Energy Action Plan focuses on educating and inspiring residents and businesses to engage in energy-saving actions. The plan aims to save 3.8 million kWh of electricity and 198,000 therms of natural gas by the end of 2025, reducing greenhouse gas emissions and saving the community approximately $450,000.
Bird City Program
In collaboration with Sustainable Stillwater MN, the Bird City Program advances the city’s commitment to protecting birds and their habitats. The program emphasizes education, habitat stewardship, and community collaboration to enhance biodiversity and environmental quality.
Environmental Learning Center
Located behind Stillwater Area High School, the Environmental Learning Center (ELC) is a 55-acre area managed to reflect Minnesota’s major biomes, including oak forest, prairie, and coniferous planting. The ELC serves as an outdoor classroom, offering students hands-on experiences in environmental science and conservation.
Community Involvement
Residents are encouraged to participate in local environmental programs and adopt sustainable practices. Seasonal recommendations include minimizing salt use for deicing in winter, clearing road gutters of debris in spring, and engaging in community clean-up events. These collective efforts contribute to the preservation and enhancement of Stillwater’s natural environment.

