Brihat Samhita
वृष्टे अह्निभागे प्रथमे सुवृष्टिस्तद्वद्द्वितीये तु सकीटसर्पा । वृष्टिस्तु मध्यापरभागवृष्टे निश्छिद्रवृष्टिर्द्युनिशं प्रवृष्टे ॥ २५-०३ ॥
If there should be a fall of rain during the first division of the day, there will be abundant rain in winter; the same remark applies to the second and third divisions; but in these two cases worms and serpents will afflict mankind. If there should be a fall of rain throughout the day and night there will be uninterrupted rain for several days in winter.
english translation
vRSTe ahnibhAge prathame suvRSTistadvaddvitIye tu sakITasarpA । vRSTistu madhyAparabhAgavRSTe nizchidravRSTirdyunizaM pravRSTe ॥ 25-03 ॥
hk transliteration by Sanscript