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.
The coldest month is usually July and the warmest month is usually January or February. In New Zealand generally there are relatively small variations between summer and winter temperatures, although inland and to the east of the ranges the variation is greater (up to 14Â°C).