Alma, Colorado, nestled at an elevation of approximately 10,578 feet, experiences a subarctic climate characterized by cool summers and year-round precipitation. This unique climate presents both challenges and opportunities for residents and the local environment.
Seasonal Weather Patterns
Summers in Alma are mild, with average high temperatures around 70°F in July. Nights remain cool, often dropping into the low 40s. The summer months, particularly July and August, are also the wettest, primarily due to afternoon thunderstorms. Winters are cold and snowy, with average highs in January around 30°F and lows near 5°F. Snowfall is common from late October through April, contributing to a substantial snowpack that supports local ecosystems and water resources.
Environmental Considerations
The town’s high elevation and climate influence local environmental conditions. The growing season is brief, typically from early June to late August, limiting agricultural activities. Alma falls within USDA Plant Hardiness Zone 5b, indicating that only certain cold-hardy plants can thrive. Additionally, the area has faced challenges with wastewater treatment. The existing lagoon system has struggled to meet ammonia and anticipated phosphorus discharge limits, prompting considerations for facility improvements or consolidation with neighboring towns to enhance treatment processes.
Community Initiatives
Recognizing these challenges, Alma has engaged in initiatives to improve environmental sustainability. Efforts include exploring upgrades to the water reclamation facility to meet discharge standards and considering partnerships with nearby communities for more efficient wastewater management. These steps aim to protect local waterways and ensure compliance with environmental regulations.
Understanding Alma’s unique climate and environmental dynamics is essential for residents and policymakers. By acknowledging these factors, the community can develop strategies to adapt to and mitigate environmental challenges, ensuring a sustainable future for Alma.

