Final answer:
The cold weather on the Alaskan Peninsula lasts longer due to the slow heating and cooling of the oceans.
Step-by-step explanation:
The cold weather on the Alaskan Peninsula lasts for about a month and a half longer compared to other places due to the slow heating and cooling of the oceans. In June, the water is still cool from winter, delaying the peak heat. Similarly, in December, the water still holds warmth from the summer, causing the coldest days to be about a month and a half ahead.