Mauna Kea Weather Center
An overnight thunderstorm dropped 1½ to 2 inches of snow on the summit of Hawaii's tallest peak in July.

Cameras at Mauna Kea's summit showed some snow still on the ground midday Friday. Mauna Kea Weather Center forecast meteorologist Ryan Lyman says it should be melting quickly.

National Weather Service meteorologist Maureen Ballard says snow can fall on the summit any time of year, though there's a greater chance in the winter.

The latest snowfall came as a thunderstorm extended high into the atmosphere, above the mountain's peak elevation of nearly 14,000 feet.

Ballard says temperatures at the summit were about freezing overnight.

The low in the nearby city of Hilo was 71 degrees. Kailua-Kona on the west side of the Big Island, had a low of 78 degrees.