> For the complete documentation index, see [llms.txt](https://librarieswest.gitbook.io/librarieswest-open-data/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://librarieswest.gitbook.io/librarieswest-open-data/other-data-climate/rain.md).

# Rain

Historic precipitation data is available through the Met Office Hadley Centre observations datasets: HadUKP.

HadUKP is a dataset series of UK regional precipitation, which incorporates the long-running England & Wales Precipitation (EWP) series beginning in 1766, the longest instrumental series of this kind in the world.

The data is available on a regional basis, so we have taken a copy of the South West daily totals data. These provide a daily precipitation value since 1931. This data is provided as a text file with a row for each month, values separated by spaces. A python script in this repository converts the data into a friendlier CSV file.

* [Download HadSWEP CSV](https://github.com/LibrariesWest/opendata/tree/4b45515af84fd24c38d0a877b9b550f2493c6cd8/weather/HadSWEP.csv)

| Field         | Description                                        | Example    |
| ------------- | -------------------------------------------------- | ---------- |
| Date          | The date measured                                  | 2016-06-19 |
| Precipitation | Daily Southwest England & Wales precipitation (mm) | 21.50      |

## Licence

Data is made available under the Open Government Licence, with a requirement to attribute the original source, which is the [Met Office Hadley Centre](https://www.metoffice.gov.uk/hadobs/hadukp/).