Temperatures dropped to a record low in Prince Edward Island overnight Tuesday, with reports of frost throughout the province.
An official record low of 3.8 C was set early Wednesday morning at Charlottetown airport.
The previous record for that date was 5.1 C, set in 2005.
Bob Robichaud, a meteorologist with Environment Canada, said that to his knowledge, frost has never been reported before in July in P.E.I.
"That 3.8 we got last night kind of sticks out as being lower than some of the other records for anytime in early July," Robichaud told CBC News on Wednesday.
"So we're looking at a significant event," he said.
Environment Canada has issued a frost risk warning in low-lying areas of the province for Wednesday night. The temperature is expected to dip to 4 C.
The forecast for Thursday, however, calls for sunny skies and a temperature of 22 C for the province.
