---
title: "Extreme Design Values Ep"
method: POST
path: "/api/tools/extreme-design-values"
tags: ["Tools (analyse and convert EPW files)"]
---

# Extreme Design Values Ep

`POST /api/tools/extreme-design-values`

## Request

- Base URL: `https://epw.tools`
- URL: `https://epw.tools/api/tools/extreme-design-values`
- Auth: none declared

n-year return-period extremes of dry-bulb, wet-bulb and dew point
(backend/extreme_values.py). Return-period values free with an
account; the year-by-year table and CSV come with any purchase.

## Headers

- `X-API-Key` string, nullable

## Request body

- ExtremesRequest
  - `lat` number, required
  - `lon` number, required
  - `start_year` integer, required
  - `end_year` integer, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/epw/apis/epw-tools-api.md) · [All operations](https://skmtc.dev/epw/apis/epw-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/epw/apis/epw-tools-api/revisions/e6b60fc7a6d7?raw)