Climate Trends & Data

  • What changes in the Earth’s climate are we observing?
  • Risk and Vulnerability: available tools and resources for the changing climate 

What changes in the Earth’s climate are we observing?

Maine’s Climate Future

Maine’s Climate Future initial 2009 report, and its 2015 update, were prepared by scientists across the State of Maine and the University of Maine’s Climate Change Institute.

National Climate Assessment

The third National Climate Assessment (NCA3) reports changes in Maine’s weather and climate, including a rise in sea level, warmer ocean temperatures, an increase in winter precipitation (which  will come more often as rain than has been the case historically), more frequent and/or more intense storms, increasing average annual temperatures and precipitation amounts, and shorter winters and longer summers.

State Climate Summaries, National Oceanic and Atmospheric Administration - National Centers for Environmental Information

These summaries provide up-to-date information on observed and projected climatic changes for each state.  Each state summary includes three “Key Messages” highlighting important trends and projections, as well as figures showing observed and projected changes in annual temperature, annual precipitation, and the number of hot and cold days and nights, and heavy precipitation days. Other figures present information particularly relevant for each state.

International Assessment Reports

These are published materials composed of the full scientific and technical assessment of climate change from the Intergovernmental Panel on Climate Change (IPCC).  The reports are generally in three volumes, one for each of the Working Groups of the IPCC, together with their Summaries for Policymakers, plus a Synthesis Report

Risk and Vulnerability: available tools and resources for the changing climate  

Please refer to the Maine Adaptation toolkit for information on adaptation practices and practitioners to inform a better understanding of how to adapt and build resilience to changes in the climate, and to any observed or possible impacts in your community, businesses, or home.

Resources include information on the follow topic areas:

Weather & Climate
Temperature (Air), Precipitation (Rain & Snow)

Flooding
Inland & Coastal Flash, Urban, Sea Level Rise, Coastal Storms

Ocean, Aquatic, and Terrestrial Systems
Oceans, Estuaries, Rivers, Streams, Lakes, Wetlands;
Farmlands/Agriculture, Forests, Meadows, Mountains

External hyperlinks are intended to provide Maine-specific information that might assist your efforts. Inclusion does not constitute endorsement by the Maine Department of Environmental Protection of the linked web sites, or the information, products or services contained therein.

Weather & Climate: Temperature (Air), Precipitation (Rain & Snow)

Resource(s) Topic(s) Summary Source Geographic Range

Climate Reanalyzer

Temperature
Precipitation
Biomes

A platform for visualizing climate and weather datasets. Provides access to weather forecast models, and environmental change model for biome shifts and snow mass balance. Climate is average weather, and so Climate Reanalyzer also provides access to weather forecast models.

University of Maine

Maine/ Regional

Data from the Casco Bay Region Regional Resiliency Assessment Program (Northeastern University)

Downscaled Maine Precipitation Data (Northeast Regional Climate Center and Cornell University)

Temperature
Precipitation

Regional Resiliency Assessment Program Extreme Weather Data and Layers for Weather, Heat and Precipitation

From the “Downscaled Maine Temperature and Precipitation Data” webpage.  Under the ‘Documentation’ tab, find ‘Related Studies’ to access the Maine Intensity-Duration Frequencies and Summary, and the Portland Radar Climatology and Urban Flood Analysis and Summary.

US Department of Homeland Security

Maine/ Regional

Climate Data and Information in the Northeast

Precipitation

Daily Observations, Climate Norms, Precipitation, and Extreme Precipitation 

Northeast Regional Climate Center

Maine/ Regional

Drought

Drought

Maine Emergency Management Agency

Maine/ Regional

Extreme Precipitation Analysis in New England

Precipitation

An interactive web tool for extreme precipitation analysis.  Includes estimates of extreme rainfall for various durations and recurrence intervals.

Cornell University / Northeast Regional Climate Center

Maine/ Regional

Hydrometeorological Design Studies Center Precipitation Frequency Data Server (PFDS)

Precipitation

An interactive web tool delivering NOAA Atlas 14 precipitation frequency estimates and associated information.

National Oceanic Atmospheric Administration-National Weather Service

Maine/ Regional

Climate Maps & Data

Temperature

NOAA Climate.gov is a source of timely and authoritative scientific data and information about climate

National Oceanic Atmospheric Administration

National

Climate Explorer

Temperature
Precipitation

Maps and graphs of climate projections for every county in the contiguous United States

National Oceanic Atmospheric Administration

National

Climate Wizard

Temperature
Precipitation

Enables technical and non-technical audiences alike to access leading climate change information and visualize the impacts anywhere on Earth.

  • view historic temperature and rainfall maps for anywhere in the world
  • view state-of-the-art future predictions of temperature and rainfall around the world
  • view and download climate change maps in a few easy steps

The Nature Conservancy

National

Water Watch

Precipitation
Rivers, Streams, Flooding, Drought

Current Streamflow, Flood, Drought, Past Flow/Runoff (for US and by State)

US Geological Survey

National

Climate Publications

Precipitation
Rivers, Streams, Flooding
Drought

Historical Trends in Summer Precipitation, Base Flows, and Storm Flows in New England and Projections of Seasonal Stream Flows for Coastal Streams in Maine

USGS New England Water Science Center

National

National Integrated Drought Information System

Drought

Data, Maps, and Tools; Research, and Resources.

National Oceanic Atmospheric Administration

National

Flooding: Inland & Coastal Flash, Urban, Sea Level Rise, Coastal Storms

Resource(s) Topic(s) Summary Source Geographic Range

Flood Mapping Resources

River Flooding

  • FEMA National Flood Hazard Layer
  • Maine Flood Hazard Map

Department of Agriculture, Conservation and Forestry

Maine/ Regional

Coastal Hazards Portal

River Flooding Sea Level Rise
Hurricanes

  • Highest Annual Tide Line
  • Sea Level Rise/Storm Surge
  • Sea Lake and Overland Surges from Hurricanes (SLOSH)
  • Marsh Migration
  • Potential Hurricane Inundation

Department of Agriculture, Conservation and Forestry

Maine/ Regional

Regional Sea Level Rise Modelling

Sea Level Rise

Sea level rise and storm surge scenarios for coastal community by coastal county.  Potential marsh migration areas in Casco Bay communities.

Department of Agriculture, Conservation and Forestry & Regional Planning Councils

Maine/ Regional

Maine River Flow Advisory and Snow Survey

River Flow
Flood Potential

River Flow, Flood Potential, Snowfall, Snow Cover, Snowpack , Snow Water Content/Depth/Density/Drainage

River Flow Advisory Commission

Maine/ Regional

Sea-Level Change Curve Calculator

Sea Level Rise

Sea Level Change Calculated from Tide Gauges in the U.S.  Select tide gauges and from different scenario sources.

US Army Corps of Engineers

National

Historic Hurricane Tracks

Hurricanes

Storms for specific locations, dates, storm details and reports

National Oceanic Atmospheric Administration

National

Visualize Tidal Flooding Impacts

Sea Level Rise, River Flooding

Normal conditions, extreme high tides, flooding and sea level rise, how to prepare

National Oceanic Atmospheric Administration

National

Coastal Flood Exposure Mapper

Hurricanes, Sea Level Rise

Sea Level Rise (0-6 feet), storm surge, 100 & 500 year flood, social, infrastructure, and ecological vulnerabilities

National Oceanic Atmospheric Administration

National

Surging Seas

Sea Level Rise, Impacts

Web-based sea level rise analysis mapping tool developed by Climate Central that allows users to see areas potentially affected by sea level rise and storm surges, down to the neighborhood scale, with risk timelines. It also provides population statistics, summaries of homes and land affected by sea level rise and storm surge, fact sheets, data downloads, and action plans.

National Oceanic Atmospheric Administration

National

Tides & Currents

Sea Level Rise

Sea Level – real time, historic, and trends

National Oceanic Atmospheric Administration

National

Sea Level Rise Mobile Application

Sea Level Rise

A crowdsourcing platform for gathering real-time, georeferenced data on local flooding and impacts.

Wetlands Watch

National

Ocean, Aquatic, and Terrestrial Systems: Oceans, Estuaries, Rivers, Streams, Lakes, Wetlands; Farmlands/Agriculture, Forests, Meadows, Mountains

Resource(s) Topic(s) Summary Source Geographic Range

Potential Tidal Marsh Migration

Marsh Migration

Potential Tidal Marsh Migration and Coastal Undeveloped Blocks After 1 m of Sea Level Rise maps and data

Department of Agriculture, Conservation and Forestry

Maine / Regional

Ecosystem Indicator Monitoring Map

 

Temperature
Precipitation
Sea Level Rise

EcoSystem Indicator Partnership (ESIP): Indicators for the Gulf of Maine in six areas: coastal development, contaminants and pathogens, eutrophication, aquatic habitat, fisheries and aquaculture, and climate change.

Gulf of Maine Council on the Marine Environment

Maine / Regional

Maine Ice-Out Dates

Lake Ice

Historical Data

Department of Agriculture, Conservation and Forestry

Maine / Regional

Ocean Acidification

Ocean Acidity

 

Island Institute

Maine / Regional

Maine Weather and Data

Oceans
Marine Species

Weather Forecasts, Marine Forecasts, Weather Data, Historical Environmental Data, Environmental Issues: Climate Change, Invasive Species, Marine Pollution, Ocean Acidification

Department of Marine Resources

Maine / Regional

Marine Data

Oceans
Marine Species

Real Time Data/Maps, Waves, Currents, Flooding/Erosion, Forecasts

Northeastern Regional Association of Coastal and Ocean Observing Systems

Maine / Regional

Ocean and Weather Climate Display

Ocean Temperature

Recent and Past Years Ocean and Weather Conditions, Comparisons. The Ocean Climate Tool includes information about recent and past years oceanographic and meteorological conditions so that you can compare them to the average conditions from the past decade.

Northeastern Regional Association of Coastal and Ocean Observing Systems

Maine / Regional

Phenology Program: Signs of the Seasons

Growing Season

Citizen Science, Plants and Animals, Seasonal Changes

University of Maine

Maine / Regional