Frost, yes frost, advisory in effect for much of southern Ontario and parts of the GTA

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It will be a chilly night in parts of Ontario, prompting Environment Canada to issue its first frost advisory of the season.

Temperatures are expected to drop near freezing overnight across much of southern Ontario as well as the province’s northeastern region.

The agency says residents should cover fruit trees and vegetable plants that could be damaged by the frost.

The advisory extends across southern Ontario from Cornwall, all the way west to Dufferin County and north to Algonquin Provincial Park.

In the Greater Toronto Area, it covers the northern parts of York and Durham regions, including Newmarket, Georgina, Uxbridge and Beaverton.

Parts of northeastern Ontario, including the Greater Sudbury area and the North Bay, are also under the warning.

Environment Canada issues frost warnings when temperatures are expected to reach 0 C during the growing season.

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