Is Alaska Colder Than New Zealand?

No, Alaska is not colder than New Zealand overall. New Zealand (Southern Hemisphere) has summer when Alaska (Northern Hemisphere) has winter. Average temperatures in New Zealand range from 12°C (53.6°F) in July to 16°C (60.8°F) in January. Alaska averages -23°C (-9.4°F) in January to 15°C (59°F) in July. Thus, New Zealand's year-round average is higher.