CalHeatScore Live Data for API Use
CalHeatScore is a heat-health ranking system that translates 7-day weather forecasts into easy-to-understand heat scores ranging from 0-4 to indicate increasing levels of health risks due to extreme heat at the zip code level. This layer contains the 7-day forecast of heat scores, updated daily at 5 and 8am Pacific Time. Click on this link to go directly to the CalHeatScore mapping tool. Data Definitions for the layer:· ZIP_CODE = Zip code identifier· Date = Date associated with CHS Day 0· CHS Day 0 = The CalHeatScore on the day associated with the Date field· CHS Day 1 = The CalHeatScore one day after the day associated with the Date field· CHS Day 2 = The CalHeatScore two days after the day associated with the Date field· CHS Day 3 = The CalHeatScore three days after the day associated with the Date field· CHS Day 4 = The CalHeatScore four days after the day associated with the Date field· CHS Day 5 = The CalHeatScore five days after the day associated with the Date field· CHS Day 6 = The CalHeatScore six days after the day associated with the Date field· Shape_Area = Area of zip code shape· Shape_Length = Length of zip code shapeFor more information, see the CalHeatScore mapping tool or contact CalHeatScore@oehha.ca.gov.
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
CSV | Download | CSV | 01/21/26 |
Shapefile | Download | ZIP | 01/21/26 |
GeoJSON | Download | GEOJSON | 01/21/26 |
KML | Download | KML | 01/21/26 |
File Geodatabase | Download | ZIP | 03/06/26 |
Feature Collection | Download | TXT | 03/06/26 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
ArcGIS Hub Dataset | HTML | 03/06/26 | |
ArcGIS GeoService | ARCGIS GEOSERVICES REST API | 01/21/26 | |
Excel | XLSX | 03/06/26 | |
GeoPackage | GPKG | 03/06/26 | |
SQLite Geodatabase | GDB | 03/06/26 |