Climate Explorer

Explore past, present, and projected future climate in easy-to-understand maps and graphs. The site shows climate data from 1950 through 2100 for every county in the United States. Projections are from the CMIP5 global climate modeling effort, downscaled according to the Localized Constructed Analogs (LOCA) protocol. Climate Explorer provides contextualized information for interpreting each of its interactive graphs. Look for the "How to read" buttons to reveal helpful information below each graph. Text explanations in the tool's About page as well as the Glossary and FAQ page can also help users make meaning of the data and envision the conditions projected for the future.

If you're using Climate Explorer for the first time, consider starting your exploration in this interactive introduction to the Climate Explorer. To launch, please visit https://crt-climate-explorer.nemac.org/. Fernleaf, HabitatSeven, University of North Carolina Asheville To launch, please visit https://crt-climate-explorer.nemac.org/. Coastal areas of the contiguous U.S., Alaska, Hawaii, and U.S. territories

Fernleaf, HabitatSeven, and University of North Carolina Asheville NOAA National Weather Service's Climate Prediction Center (CPC), National Environmental Modeling and Analysis Center (NEMAC) Individuals, businesses, and communities of all sizes can use the Climate Explorer to understand how climate conditions in their locations are projected to change over coming decades. This information—derived from global climate models—can help people assess potential exposure, vulnerability, and risk to their assets. Built to accompany the U.S. Climate Resilience Toolkit, the Climate Explorer offers graphs and maps of observed and projected temperature, precipitation, and related climate variables for every county in the contiguous United States.

Additionally, the tool now offers hindcasts and projections for Alaskan boroughs. The tool also displays historical observations of temperature, precipitation, and related variables from 1950 to 2013 for the contiguous United States. Observations are averages calculated from quality-checked ground-based weather stations across the country. Users can compare graphs of observed conditions to climate model simulations (hindcasts, or projections generated for the past) for the same period. Comparing the range of observations to the simulations can provide insights on the models' collective ability to predict the future for the given variable in a given county. For temperature-related variables, the range of observations are generally within the envelope of simulations (hindcasts).

For some variables—especially precipitation-related variables—comparing observations with hindcasts reveals limitations of the models. The Climate Explorer: Explore graphs and maps of historical and projected climate variables for any county in the contiguous United States. When checked, all data from all series will be displayed. When unchecked, data will be cropped to a starting point that all datasets share. The clear filter button is displayed when there is a start or end year filter applied to the chart. Clicking this button will reset the chart back to the default filter and remove the range slider (if it has been turned on).

The grouping option allows you to look at the data from another point of view. Options: The download data button allows you to download, as a csv file, the data for the chart you are currently looking at. The button is context sensitive; it'll download data that applies to the current view. For example, if you are looking at the data as a "Year + Month" grouping, you will get twelve records for each year. The aggregation options allow you to change the underlying grouping parameters for the chart.

The default values will group the daily data into 14 day (i.e., fortnightly) sub-bins. If each of those sub-bins has records for 70% of those days (i.e., 10 days of the 14 days will need to have records) then the whole year is considered valid. This means that you can still have substantial data loss, while the data remains valid. E.g., a meteorologist unwilling to come in on some weekends to record the min and max temperatures may not invalidate the data for the year. However, going on a 3-week holiday in the middle of winter would invalidate the year as it would distort the average to make the year seem warmer than it was. The Climate Explorer is an interactive tool providing graphs, maps, and downloadable data of observed and projected climate conditions for every county in all 50 states and U.

S. territories. The climate projection graphs for temperature, precipitation, and related climate variables include ranges of climate model results for two possible future scenarios—one in which humans make a significant attempt to reduce global emissions of... NEMAC co-developed the Climate Explorer with our partner Fernleaf and a group of federal science agencies led by the National Oceanographic and Atmospheric Administration’s Climate Program Office. NOAA Climate Explorer is a comprehensive, free web-based tool that provides access to climate data visualizations and analysis capabilities for understanding past, present, and projected climate conditions across the United States. Developed by NOAA's National Centers for Environmental Information (NCEI), this tool offers both historical climate observations and future climate projections from leading climate models, making it essential for climate risk assessment, adaptation planning, infrastructure...

Whether you're a researcher, planner, consultant, or decision-maker, NOAA Climate Explorer provides accessible, authoritative insights into climate trends and projections for communities across America. NOAA Climate Explorer provides completely free access to extensive climate datasets. This makes it an essential resource for climate analysis and planning.

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