February is the begining of spring in some countries. From the medieval Latin poem Veris Leta Facies, a part of a larger poem called the Carmina Burana, I quote these lines, translated into english:

The merry face of spring turns to the world,
sharp winter now flees, vanquished;
bedecked in various colours!

Aside these pagan lines, there is Ode to Spring by Elizabeth Bentley:

Welcome, sweet season of delight,
What beauties charm the wond'ring sight
In thy enchanting reign!