Kaltluftseen.ch, an initiative by Stephan Vogt, monitors frost hollows in Switzerland. In this season he started to use Decentlab's air temperature and relative humidity with radiation shield (LoRaWAN) and the Data Access platform to monitor Hintergräppelen, a promising site to reach lowest temperatures in Switzerland.

On Tuesday morning we recorded a new minimum of this season with -21.89 °C. We are looking forward for a really cold winter.

More informations about the site Hintergräppelen (kaltluftseen.ch)

LoRaWAN network by Swisscom LPN

Realtime data

Plot of temperature at Hintergräppelen over the last 30 days with minimum of -21.89 °C

Monitoring station (source Stephan Vogt)

Monitoring station and surrounding (source Stephan Vogt)