Alaska- Climate and when to go to Alaska

Climate

Although the assumption is that Alaska is a land of snow and sub-zero temperatures, the Alaskan climate is actually extremely varied, caused by the state's six different topographic regions. The far north is extremely dry and very cold, with Arctic conditions and temperatures average about -29°C. Summer temperatures in the lowlands are surprisingly high, averaging about 16°C, and they have been known to reach 32°C and up.

The southeast tends to be fairly moderate, with damp, rainy and sometimes mild conditions, with temperatures in July averaging13°C and temperatures in January averaging -1°C and the south and central areas tend to be similar, with slightly colder winter temperatures. Western Alaska tends to be rainy, while the Aleutian Islands in winter are damp and rainy, with fog. Heavy snow is common in the north and central regions of the state.

When to go
 
Many people consider the period between May and early September to be the best time to visit Alaska. And within that period, late May through June usually has the best combination of long days, clear skies and warm afternoons.