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# Monthly Climate Conditions - Interactive Map

Generate maps showing data for each of the 344 climate divisions in the U.S. Climate Divisional Database. You can specify monthly or yearly values, ranks, or anomalies for temperature, precipitation, heating and cooling degree days, and drought indices.

### Where do these data come from?

Measurements come from weather stations in the Global Historical Climatology Network-Daily (GHCN-D).

-  How-To  
**How do I use the site?**
- Start at  https://www.ncdc.noaa.gov/cag/divisional/mapping .
- Set drop-down menus to indicate your choices of State, Parameter, Year, Month, and Time Scale, and then click Plot. 

**What can I do with these data?**

Choose various ways to display the map by clicking buttons just above it. Click...
- Values  to see actual observed values averaged across the geography, parameter, and time indicated;
- Ranks  to see how your period of interest compares to the historical record;
- 1901-2000 Mean  to see the 20th century average for the month or season indicated; or
- Anomalies  to see how the indicated period compared to the 20th century average for the same month or season.
 
-  Data Access  Data Format(s)                                                                                                                                            CSV, JSON, PNG, XML, Other                                Access TypeLink & Description**Mapping**Climate at a Glance                                        Contiguous U.S. Mapping Interface                                       
-  Documentation  Documentation TypeLink & Description**General**                                                                            U.S. Climate Divisions - History                                    History of the U.S. Climate Divisional Dataset                                  **Articles**                                                                            U.S. Climate Divisions - Monitoring References                                    List of journal articles, white papers, or other publications related to the U.S. Climate Divisional Dataset                                   
-  Technical  Data Type                                                                                                                                            Land-based station                                Essential Climate Variables                                                                                                    Air temperature,                                 Ancillary Variables                                                                    Drought                                Science OrganizationNational Climatic Data Center 

                                                    Climate at a Glance: U.S. Mapping

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