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.
Because New Zealand lies in the Southern Hemisphere, the average temperature decreases as you travel south. The north of New Zealand is subtropical and the south temperate. The warmest months are December, January and February, and the coldest June, July and August. In summer, the average maximum temperature ranges between 20-30C and in winter between 10-15C.