How to Extract Rainfall Data using ArcGIS Pro | Extract Values to Points

Below is a step-by-step guide on how to extract rainfall data using ArcGIS Pro: 1. Prepare Your Data • Rainfall Raster: Load your rainfall dataset (e.g., GeoTIFF) into your ArcGIS Pro project. This raster should represent rainfall values (e.g., annual totals) over your study area. • Point Feature Class: Add your point data that represents locations where you want to extract rainfall values (e.g., weather stations or sample sites). Ensure both layers are in the same coordinate system. 2. Use the "Extract Values to Points" Tool ArcGIS Pro provides the "Extract Values to Points" tool (available under the Spatial Analyst toolbox) to transfer raster cell values to point features. 1. Open the Tool: • In the Analysis tab, click on Tools to open the Geoprocessing pane. • In the search bar, type "Extract Values to Points". 2. Configure the Parameters: • Input Point Features: Select your point feature class. • Input Raster: Choose your rainfall raster. • Output Point Feature Class: Specify a name and location for the new point feature class that will include the extracted values. • Interpolation (Optional):  You can choose whether to use the nearest cell value or interpolate between surrounding cells. • Add Field: • A new field (by default named something like "RASTERVALU") will be added to your attribute table to store the rainfall value. 3. Run the Tool: • Click Run. The tool will process each point and assign the corresponding rainfall value from the raster cell that overlaps the point (or an interpolated value). 3. Verify and Use the Extracted Data • Review the Output: • Open the attribute table of the output point feature class. • Verify that a new field contains the rainfall values. • Check a few points by zooming to them on the map to ensure the extracted values match the raster data. • Further Analysis or Export: • You can use these extracted values for additional analysis (e.g., trend analysis, statistical summaries, etc.). • To export the attribute table to a CSV file for further use, right-click the layer in the Contents pane, select Data → Export Table, and choose CSV as the output format.