Spring pruning of garden trees is only conditionally called spring. It also happens that it has to be done before the first spring warmth.
In this matter, it is important to understand that the calendar spring is not an exact indicator, but you need to be guided by the weather and temperature.
Experienced gardeners try not to delay this procedure until the last minute.
They have long ago drawn conclusions for themselves and believe that it is more important to monitor the behavior of nature, rather than the thermometer readings.
This is why they try to carry out spring pruning before the buds on the trees and bushes have time to swell.
There are no specific recommendations regarding dates or days of the week. Somewhere the buds swell already in March and even at the end of February.
In other regions, spring comes at the end of April. Much depends on the weather itself, which never ceases to amaze gardeners year after year.
It is precisely taking into account the climatic features of the region that pruning must be planned.
By the way, you can find recommendations that this procedure can be performed when the air temperature is stable at no lower than 5 degrees below zero.