Brihat Samhita
पवनघनवृष्टियुक्ताश्चैत्रे गर्भाः शुभाः सपरिवेषाः । घनपवनसलिलविद्युत्स्तनितैश्च हिताय वैशाखे ॥ २१-२२ ॥
In the month of Chaitra, the clouds are auspicious, accompanied by wind and rain and marked by halos; and in Vaiśākha, dense clouds, winds, rainwater, lightning, and thunder occur for the benefit (of the land).
english translation
pavanaghanavRSTiyuktAzcaitre garbhAH zubhAH sapariveSAH । ghanapavanasalilavidyutstanitaizca hitAya vaizAkhe ॥ 21-22 ॥
hk transliteration by Sanscript