The mercantile pound (1304) of 6750 troy grains, or 9600 tower grains, derives from this pound, as 25 shilling-weights or 15 tower ounces, for general commercial use. Multiple pounds based on the same ounce were quite common.
While the far north has subtropical weather during summer, and inland alpine areas of the South Island can be as cold as -10Â°C (14Â°F) in winter, most of the country lies close to the coast, which means mild temperatures. The average New Zealand temperature decreases as you travel south.
New Zealand has mild winters and warm summers. The most northern part of New Zealand is said to have a subtropical climate, but this is incorrect. The higher regions, especially those on the south island, have a land climate. The highest summits have a high mountain climate.