On September 3, the Orthodox Church remembers the Apostle of the Seventy, Thaddeus, and the Martyr Vassa of Alon.
In the folk calendar, September 3rd is Vasilisa the Flax-Bearer, Thaddeus the Preacher, Thaddeus Day.
According to folk signs, on Faddeev's day you can determine whether September will be warm and sunny.
If the weather is good on Vasilisa-Flax Day, the whole month will be fine.
If there is a lot of cobwebs, September will be warm and sunny.
If the storks have flown away by this day, a cold snap is just around the corner.
A cold snap is also expected if the nettles stop stinging.