Afriend is planning a trip to alaska. he purchased a coat that is recommended for outdoor temperatures from −15°f−15°f negative 15 degrees cap f to 45°f

The temperature in Alaska can range from 11 °F (in winter, January for example) to 65°F in the summer months (July for example).
In our situation, the friend who is planning a trip to Alaska has a coat that is
is recommended for outdoor temperatures from −15°F to to 45°F. So, the coat suits for the temperatures in Alaska. But the coat must be also water resistant because of the snow falls.

I’m not so sure about this one.