Ovid’s portrait of Notus at Metamorphoses 1.265, for an always rainy March (though I think Notus is technically for the storms of late summer into aututmn):
Forth flies the South-wind with dripping wings, his awful face shrouded in pitchy darkness. His beard is heavy with rain; water flows in streams down his hoary locks; dark clouds rest upon his brow; while his wings and garments drip with dew. And, when he presses the low-hanging clouds with his broad hands, a crashing sound goes forth; and next the dense clouds pour forth their rain.
madidis Notus evolat alis,
terribilem picea tectus caligine vultum;
barba gravis nimbis, canis fluit unda capillis;
fronte sedent nebulae, rorant pennaeque sinusque.
utque manu lata pendentia nubila pressit,
fit fragor: hinc densi funduntur ab aethere nimbi;
And a bonus – Notos on the Tower of the Winds in Athens. He is holding a water jar for the downpours he brings.