Since end 2025 I'm a member of the whatsApp groep VVW Halo. The associated WhatsApp group is a private community for members of the Weather association VVW. It is used for real-time weather observations, such as reporting storms, lightning, or optical phenomena like halos and rainbows. The reportings are analysed and published in their monthly magazine Halo.
The first quarter results are published last month including my observations and pictures. Looking at the graphs, a halo could be seen in the mentioned period average every 3 days.