Climate change in Bangor, Maine

Climate change is affecting locations like Bangor in a variety of ways. In fall, these impacts include heavier rainfall, more unusually warm days, and more intense hurricanes.

Explore these pages to learn how people in Bangor are at risk in a warming world.

Since 1970, average annual temperatures in Bangor have gotten 2.4°F warmer, reflecting an overall warming trend.

Warming puts people and ecosystems at risk from more frequent and intense extreme weather.
Overall, the contiguous U.S. is about 2.8°F warmer today than in 1970, based on average temperatures.
Data source: NOAA ACIS

Since 1970, Bangor's annual precipitation has increased by 4.6 inches.

Climate change is supercharging the water cycle and bringing heavier precipitation extremes across the U.S.
For every 1°F of warming, the air can hold 4% more moisture, increasing the chances of heavier downpours that contribute to flash flooding hazards.
Data source: NOAA ACIS

As of October 29, 2026, Bangor has experienced 19 days this year with temperatures made twice as likely by climate change.

This is according to the Climate Shift Index (CSI), which quantifies the influence of human-caused climate change on daily average temperatures. Temperatures on these days had a CSI level 2 or higher, which indicates local temperatures were at least two times more likely due to climate change.
The CSI ranges from -5 to +5. Positive levels indicate temperatures made more likely due to climate change (while negative scores indicate conditions made less likely).
Data source: Climate Shift Index

Bangor's climate threats in include:

The amount of rainfall during the heaviest rain events each year in the Northeast has increased by 60% since 1958.

Climate change is supercharging the water cycle, bringing heavier precipitation extremes across the U.S.
This chart shows how the amount of rainfall during the top 1% heaviest rain events each year in the Northeast increased between 1958 to 2021.
Data source: Fifth National Climate Assessment

Since 1970, average fall temperatures in Bangor have gotten 2.8°F warmer, reflecting an overall warming trend.

Fall warming means that risky heat, fire weather, and allergies linger later into the year.
Data source: NOAA ACIS

The sea level in Bangor is projected to rise 1.0 feet by 2050 even if nations meet their pledged commitments to reduce heat-trapping pollution.

Increasing flood risk is driven by our warming climate, which is causing sea levels around the world to rise. Rising sea levels push tides and storm surges higher and farther inland.
Climate Central’s Coastal Risk Finder provides maps and analysis of the people, homes, and land in the U.S. projected to be at risk from worsening coastal flooding driven by rising seas.

Explore some ways climate change is affecting Bangor in fall

Heavier rainfall

Hourly rainfall intensity — a key factor in flash floods — has increased in 129 cities across the U.S. since 1970.

Key concepts:

Climate change is supercharging the water cycle, bringing heavier rainfall extremes and related flood risks across the U.S.
Some 129 U.S. cities (90% of 144 analyzed) have experienced an increase in hourly rainfall intensity since 1970.
People and ecosystems in both wet and dry locations are facing the risks that come with heavier rainfall in our warming climate.

Learn more

More warm fall days

Fall (September-November) has warmed nationwide since 1970.

Key concepts:

Fall (September - November) has warmed nationwide since 1970.
Warming is nationwide, strongest in the Southwest.
Hotter falls extend risks from heat, wildfire, allergies, and more.

Learn more

More intense hurricanes

Warmer oceans from climate change fuel stronger hurricanes.

Key concepts:

Warmer oceans from climate change fuel stronger Atlantic hurricanes with heavier rain and higher storm surge.
Rising seas amplify storm surge, increasing risks for coastal residents.
Warmer air holds more moisture, driving heavier downpours and flooding.

Learn more

More coastal flooding

In the U.S., coastal floods now happen three times more often than they did 30 years ago.

Key concepts:

Climate Central’s Coastal Risk Finder provides maps and analysis of the people, homes, and land at risk from worsening coastal flooding driven by rising seas in the contiguous U.S.
Around 2.5 million Americans in 1.4 million homes live in areas at risk from a severe coastal flood in 2050 under projections that assume global pledged commitments to reduce carbon pollution are met.
Florida, New York, and New Jersey have the most people and homes in areas at risk from a severe coastal flood.
Older adults are disproportionately exposed to coastal flood risk. Nearly 540,000 people aged 65 and older live in at-risk areas.

Learn more

Impacts to food prices

Extreme events fueled by climate change can damage crops, reduce yields, and disrupt supply chains.

Key concepts:

Food and climate change are closely linked. Food systems account for about one-quarter of all heat-trapping pollution.
Meanwhile, extreme events fueled by climate change can damage crops, reduce yields, and disrupt supply chains — all of which can drive food prices higher.
The availability, quality, and affordability of food reflect a complex set of climatic and socioeconomic factors. Emerging research is providing insight into the role of climate change.

Learn more

More graphics about Bangor and climate change

Browse climate-related graphics for all seasons localized for Bangor, available for download and use consistent with our Terms of use.

Filter by keywords

Show per page:

Discover more nearby

See all supported locations

Climate change in Bangor, Maine

Bangor's climate threats in fall include:

Explore some ways climate change is affecting Bangor in fall

Discover more nearby

Other Climate Central Resources

Bangor's climate threats in include: