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.
Christchurch has a moderate sea climate with dry, sunny and warm summers and mild winters. January, February and March are the warmest months. July and August are the coldest months. Throughout the year Christchurch is quite windy just like the rest of New Zealand.