Yes! If the conditions were right, using evaporation and wind, Indians were able to make sheets of ice on the top of a bowl of water and scrape it off and slowly build up a store. I've seen this demonstrated on video, but can't find the link right now. However, this is AskHistorians so, 'show me the documentation!' Here is an article from January, 1882 in the NYTimes, describing this process as it was done on a larger scale, but this is how it was done:

http://query.nytimes.com/mem/archive-free/pdf?res=F20E1FF63E5F15738DDDA10894D9405B8284F0D3

I believe in one of Michael Wood's TV documentaries about India he shows it on video, but I still can't find it.

Australia gets a reputation as being hot and dry, but perhaps a little known fact about the country is that it does have an alpine region. Evidence does exist to suggest that people lived on and around these snow-capped mountains. Australian Aboriginals were great observers of the land, and it's not far-fetched at all to assume the tribes living in these regions witnessed snow melting and becoming streams, creeks and rivers.

Ancient Australian Aboriginal tribes certainly experienced the last ice age, approximately 14,000 years ago. A study seems to suggest there was mass migration across the land to form small pocket communities where water was still running. As the article suggests, this even occurred in the "tropical north" of the country in Queensland. Again, they probably would have witnessed water becoming ice, and generations later would witness ice becoming water as it thawed.

Of course, there is evidence to suggest that Indigenous Australians have lived on the mainland for as long as 50,000 years before present, having migrated from Asia some 70,000 years before present. Keep in mind, during this period, Australia was further south than it is now. The breakup of Gondwana began about 180 Million years ago, and the Australian continent has been moving northwards since. A more southerly position places Australia in a colder climate.

At least some Papuans must have known, because there are glaciers there. I lived one degree north of the equator at sea level for a long time and it hailed a couple times a decade there. Some other equatorial areas have snow-capped mountains too like Mt. Kilimanjaro and several Andean peaks. So yes, it would not be out of the question that many ancient tropical peoples would have at least heard say of ice.

Along those lines, may I ask if there are accounts of people from tropical locals trying to explain the phenomenon of snowfall if it happened but rarely in their region (and they were unfamiliar with snowfall happening in other regions.)