Snow in Hawaii is a rare thing, for sure.

But, snow in Hawaii in July is especially weird. Even when it’s just 1.5 inches.

On Friday morning, a blanket of snow in Hawaii covered the summit of Mauna Kea on Hawaii’s Big Island.

Maureen Ballard, a forecaster with the National Weather Service in Honolulu, said of the snow in Hawaii, “It can happen, even in July.”

She added, “It’s not out of the realm of possibility that something more could happen at the summit, but temperatures are rising.”

July snow In Hawaii? Mauna Kea Hit With Freak Snowstorm http://t.co/AZ4caUuFYD via @theinquisitr #GlobalWarmingHoax pic.twitter.com/BtjNbxRMQk

— Say No to the TPP (@kencampbell66) July 19, 2015

A passing thunderstorm was the culprit in the freak falling of snow in Hawaii.

Meteorologist Ryan Lyman said that summer snow in Hawaii isn’t normal, but it can happen any time of the year.

Snow? In Hawaii? In July? Must be all that heat trapping CO2 which is baking Mauna Loa just a few miles away . . . . https://t.co/4MpF75ARkS

— Jaime Jessop (@Balinteractive) July 18, 2015

Snow. In Hawaii. In July. "Hell" (it's been crazy hot here lately) just froze over folks. pic.twitter.com/xOdAn38Lkv

— Reel Tours Hawaii (@reeltourshawaii) July 17, 2015

Mauna Kea temperatures stay pretty cold year round. The average high temperatures at the summit of Mauna Kea are around 40 degrees, and average lows are around 25 degrees.

RT @KonaHomeTeam Snow in July – IN Hawaii #SnowStorm #SummerStorms #hawaii #snowboarding… https://t.co/Je7CYzZXH8 pic.twitter.com/3rdW2Wurdw

— Bosewell Vandahmier (@Vandahmier) July 17, 2015

Are you surprised to see snow in Hawaii in July? I bet vacationers to Hawaii’s Big Island were.