Egy találó idézet a Climate Reference Network (CRN) leírásaiból:

Class 1 - Flat and horizontal ground surrounded by a clear surface with a slope below 19deg. Grass or low vegetation ground cover max. 10 centimeters high. Sensors located at least 100 meters from artificial heating or reflecting surfaces, such as buildings, concrete surfaces, and parking lots. Far from large bodies of water, except if it is representative of the area, and then located at least 100 meters away. No shading when the sun elevation greater than 3 degrees.

Class 2 - Same as Class 1 with the following differences. Surrounding Vegetation less than 25 centimeters. No artificial heating sources within 30m. No shading for a sun elevation 5deg or less.

Class 3 (error 1C) - Same as Class 2, except no artificial heating sources within 10 meters.

Class 4 (error approx. 2C) - There are artificial heating sources closer than 10 meters.

Class 5 (error greater than 2C) - Temperature sensor located next to/above an artificial heating source, such a building, roof top, parking lot, or concrete surface.

A Kitaibel Pál utcában lévõ állomás kétségtelenül a legutóbbi kategóriába tartozik, kimeríti a pontatlan mérõhely fogalmát még Budapesten belül is.