One reading is not enough
The current temperature describes a single moment. The shape of the curve, daily minimum, maximum and average are all needed to understand whether a change was brief or lasted throughout the day.
Mountain weather changes quickly
Cloud, wind and changing air flow can move temperatures rapidly in the Krkonoše Mountains. A short spike is not the same as a stable trend, so always consider the time attached to each point and the selected range.
Compare like with like
The ‘same time yesterday’ comparison reduces the effect of the normal daily cycle. Longer averages place a day within its season. Missing measurements must remain distinct from genuine weather changes.
What this station represents
The archive comes from one local sensor. It is valuable for trends at the measuring site, but it is not a regional forecast or a replacement for summit stations.