From glaciologist Melaine Le Roy on Bluesky:
MORE THAN 24H ABOVE ZERO ON TOP OF MONT BLANC!
The station located at Colle Major, 4750 m, on Mont Blanc recorded a maximum of +3.7°C on 28/06, while the minimum today, 29/06, was +1.1°C, more than 24 hours above zero!
But don't worry, it's summer... 🙃😱
Data source @meteovalledaosta