By James Larson
Stillwater’s climate isn’t what it used to be. Though the changing weather can feel confusing—sometimes nice, sometimes harsh—it’s part of a clear pattern that clues us in to our shifting environment. Here’s a deeper look at what’s changing, why it matters, and how we can adapt together.
What trends are we seeing in Stillwater—and across Minnesota?
Data collected from Stillwater and statewide show distinct long-term shifts:
- Warmer winters and nights: Average low temperatures in winter have been rising, cutting down on the number of very cold nights. True, the cold still comes—but not as sharply or as often. For Stillwater, that means fewer frigid stretches and less snow-ice severity on average.
- More intense and frequent heavy rainfall: Rainstorms packing 1-, 3-inch or larger totals now happen more often than in past decades. That adds stress to local waterways and storm systems.
- Hotter summer days and extended humidity: Heatwaves are creeping into our summers—more heat warning days, more discomfort during nights—especially in zones with less green cover.
- Air quality challenges: Ground-level ozone, fine particles (including from wildfire smoke far away), pollen, and mold are rising threats. Some days may see “unhealthy for sensitive groups” alerts more often than before.
Why these changes are happening
Several forces are driving these shifts:
- Greenhouse gas warming: Global carbon and methane emissions are trapping more heat, which affects air, land, and water—even here in the St. Croix Valley.
- Altered precipitation patterns: Warmer air holds more moisture, so storms release more rain. Also, snow’s melting sooner in spring, which changes runoff timing.
- Land use and development: Less open space, more pavement, and reduced tree canopy can amplify summer heat and worsen air quality locally.
- Upwind sources of pollution: Smoke from wildfires hundreds of miles away or ozone precursors carried by wind affect Stillwater’s sky, especially under certain atmospheric conditions.
What this means for daily life in Stillwater
These trends aren’t just scientific—they play out in our routines, health, and environment:
- Health risks: Those with asthma, allergies, heart or lung issues may feel worse on hazy or high-ozone days. Even generally healthy people experience more discomfort when the air is muggy or smoky.
- Infrastructure and planning: More heavy rains can mean more flooding or overwhelmed storm drains. Earlier snowmelt can change road maintenance and landscaping schedules.
- Outdoor enjoyment: Gardening, recreation, and time at the lake or river can shift timing or require adjustments—carry goggles, watch alerts, pick mornings or evenings when the heat or smoke is lighter.
What we can all do
Both small steps and community action help us adapt and help reduce harm down the road:
- Check local air quality forecasts before outdoor plans; on bad-air days, limit strenuous outdoor activity and keep windows closed when smoke is heavy.
- Upgrade home insulation, add shading (trees, awnings), and improve ventilation to reduce heat inside during summer and cut heating needs in winter.
- Support or plant native trees and minimize impervious surfaces (driveways, pavement) to reduce heat and manage flood risks.
- Use cleaner heating and cooling—electric or efficient systems, avoid burning wood when smoke or air quality is a concern.
- Get involved: local government planning, watershed groups, and state climate initiatives all benefit from voices in our community.
Stillwater has always adapted to its seasons—harsh winters, sultry summers, spring floods. What’s different now is how fast changes are arriving, and how many fronts they come on. By staying aware, preparing, and caring for our shared environment, we can keep Stillwater resilient and livable for generations to come.