Our API sources data from many station networks. Citizen maintained stations can change their location with time (the station identifier will not change if this occurs), and are considered "Unstable".

We recommend avoiding usage these station ID's by either using another query method (lat/lon, postal code, city ID) or using a station from our published   "stable" station ID list on the API metadata page.

Querying by station ID is functionally equivalent to querying the API with the lat/lon of the station. For example the two requests are equivalent:

KRDU coordinates: 35.88,-78.79