Autumn 2025-Oak - News and Discussion - European Phenology Campaign
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time. On October 24, the tree was 80% green 5GY 5/10, daytime
temperature +16, at night +9. But on October 25th there was heavy rain
and wind. And the leaves turned yellow very sharply. The day and night
temperatures haven't changed much. But this process of a drastic change
in leaf color is very interesting.
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