Andover, Minnesota, experiences a diverse climate characterized by distinct seasonal changes. The city enjoys warm, wet summers and cold, snowy winters, with temperatures typically ranging from 8°F to 82°F throughout the year. The warm season spans from late May to mid-September, with July being the hottest month, averaging highs of 82°F and lows of 63°F. Conversely, the cold season lasts from late November to early March, with average daily highs below 35°F.
Precipitation is fairly evenly distributed across the year, with an annual average of approximately 32.3 inches. Snowfall is significant during the winter months, averaging around 54.8 inches annually. The city’s climate falls under the Köppen classification Dfb, indicating a humid continental climate with mild summers and wet conditions year-round.
In response to environmental challenges, Andover has implemented several initiatives to protect and enhance its natural resources. The city is committed to maintaining the health of its lakes, rivers, streams, and wetlands, recognizing their importance for recreation, aesthetics, wildlife habitat, and overall environmental quality. Efforts include addressing water quality, tree preservation, and managing invasive vegetation.
To combat stormwater pollution, Andover participates in the National Pollutant Discharge Elimination System (NPDES) Phase II permit program. This program involves developing a Storm Water Pollution Prevention Program (SWPPP) that outlines Best Management Practices (BMPs) aimed at improving stormwater quality. The city emphasizes public education and involvement, illicit discharge detection and elimination, construction site runoff control, post-construction stormwater management, and pollution prevention for municipal operations.
Residents are encouraged to contribute to these efforts by adopting practices such as minimizing the use of fertilizers, planting native vegetation, properly disposing of waste, and maintaining vehicles to prevent fluid leaks. Additionally, the city advises against washing cars in driveways to prevent soap and pollutants from entering the storm sewer system.
Through these combined efforts, Andover strives to preserve its natural beauty and ensure a sustainable environment for current and future generations.