> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dalyenergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Weather Data

> Create a weather data record from provided arrays

# POST /weatherdata

Create a weather data record by supplying hourly (or sub-hourly) weather arrays directly. This is the manual creation path -- use `POST /weatherdata/fetch` instead if you want the server to retrieve data from an external source like NSRDB or PVGIS.

## Notes

* Requires a valid JWT with write access.
* At minimum, provide the four required irradiance and meteorological arrays: `ghi`, `dhi`, `windSpeed`, and `temperature`. Optional arrays include `dni`, `relativeHumidity`, `poa`, and `date` (Unix timestamps in milliseconds).
* All provided arrays must have the same length. Standard hourly datasets have 8,760 timesteps; sub-hourly datasets are also supported and auto-detected.
* Optionally link to an existing location by providing `locationId` (workspace-scoped) or `globalLocationId` (Snowflake ID). Returns 404 if the referenced location does not exist.
* `weatherDataSource` defaults to `"provided"` when supplying arrays directly.
* `soiling` accepts monthly soiling factors (Jan--Dec, values 0--1) as a keyed object.
* See `POST /weatherdata/fetch` to create weather data from an external source instead.
* See `GET /weatherdata/{weather_data_id}` to retrieve the created record with full arrays.