The API (referenced as the Frost API in these pages) is intended to provide free access to MET Norway's archive of historical weather and climate data, in addition to station history information. These data include quality controlled daily, monthly, and yearly measurements of temperature, precipitation, and wind data.

The Frost API is currently still in development.
This means that service can be interrupted, and that functionality may not always work as intended or be fully-featured. It also means that we may change resources and return-types from time to time, as we work on improving the service.