Using an AI assistant? The same data is available over the Model Context Protocol at https://api.usclimatedata.com/mcp, authenticated with OAuth 2.1. Six tools cover station search, data availability, monthly averages, monthly and daily normals, and Köppen climate classification. Connecting an assistant requires the Developer plan or higher; tool calls use the same quota and rate limit as REST requests.

By using the API, you agree to the Service Terms and Acceptable Use Policy. Review the Privacy Notice and Support information. The API provides historical climate information, not forecasts or emergency warnings.

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