Climate Recreation Community Catastrophe

Eden Index

Climate 8.3 Recreation 3.1 Community 6.7 Safeguard


Portland, Oregon, located in the Pacific Northwest region of the United States, boasts a mild and temperate climate. The city experiences four distinct seasons, with warm, dry summers and cool, wet winters. Average temperatures range from 40°F (4°C) in winter to 80°F (27°C) in summer. Rainfall is abundant, with an average annual precipitation of 43 inches (109 cm), and the city occasionally experiences snowfall during winter months.

Situated along the Willamette River, Portland benefits from a diverse hydrology system. The river provides opportunities for water activities such as kayaking, paddleboarding, and boating. The city is also known for its many bridges, offering scenic views and pedestrian-friendly options for crossing the river.

Outdoor recreation opportunities abound in and around Portland. The surrounding natural landscapes provide a variety of activities, including hiking in Forest Park, one of the largest urban forests in the United States, or exploring the Columbia River Gorge's breathtaking waterfalls and scenic trails. Mount Hood, just one hour away, offers year-round outdoor activities, including skiing, snowboarding, and hiking.

Overall, Portland's climate, hydrology, and abundance of outdoor recreation opportunities make it an ideal destination for nature enthusiasts and those seeking an active and vibrant lifestyle.

What is the Eden Index?

The Snoflo Eden Index serves as a comprehensive rating system for regions, evaluating their desirability through a holistic assessment of climate health, outdoor recreation opportunities, and natural disaster risk, acknowledging the profound impact of these factors on livability and well-being.

Climate Health Indicator (CHI): 8.3

Portland receives approximately 1125mm of rain per year, with humidity levels near 82% and air temperatures averaging around 12°C. Portland has a plant hardyness factor of 8, meaning plants and agriculture in this region tend to thrive here all year round. By considering the ideal temperature range, reliable water supplies, clean air, and stable seasonal rain or snowpacks, the Climate Health Indicator (CHI) underscores the significance of a healthy climate as the foundation for quality living.

A healthy climate is paramount for ensuring a high quality of life and livability in a region, fostering both physical well-being and environmental harmony. This can be characterized by ideal temperatures, reliable access to water supplies, clean air, and consistent seasonal rain or snowpacks.

Weather Forecast

Streamflow Conditions


Area Rivers


Snowpack Depths


Reservoir Storage Capacity


Groundwater Levels

Recreational Opportunity Index (ROI): 3.1

The Recreational Opportunity Index (ROI) recognizes the value of outdoor recreational options, such as parks, hiking trails, camping sites, and fishing spots, while acknowledging that climate plays a pivotal role in ensuring the comfort and consistency of these experiences. Access to outdoor recreational opportunities, encompassing activities such as parks, hiking, camping, and fishing, is crucial for overall well-being, and the climate plays a pivotal role in enabling and enhancing these experiences, ensuring that individuals can engage in nature-based activities comfortably and consistently.

Catastrophe Safeguard Index (CSI):

The Catastrophe Safeguard Index (CSI) recognizes that natural disaster risk, encompassing floods, fires, hurricanes, and tornadoes, can drastically affect safety and the overall appeal of an area. The level of natural disaster risk in a region significantly affects safety and the overall livability, with climate change amplifying these risks by potentially increasing the frequency and intensity of events like floods, fires, hurricanes, and tornadoes, thereby posing substantial challenges to community resilience and well-being.

Community Resilience Indicator (CRI): 6.7

The Community Resilience Indicator (CRI) recognizes that education, healthcare, and socioeconomics are crucial to the well-being of a region. The CRI acknowledges the profound impact of these elements on residents' overall quality of life. By evaluating educational resources, healthcare accessibility, and economic inclusivity, the index captures the essential aspects that contribute to a thriving community, fostering resident satisfaction, equity, and social cohesion.

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