Canada’s July outlook holds a major flip-flop across the country
The weather that starts July across Canada will likely reverse by the end of the month
Welcome to the heart of summer, Canada.
July is traditionally the hottest month of the year for much of the country, and conditions to start this month are certainly living up to that reputation.
Don’t get used to the weather you’ve got right now, though. Just about everyone across the country will see a complete pattern reversal before the middle of the month.
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July begins with major heat east of the Rockies
British Columbia is kicking off the month on a cooler note as an unsettled pattern brings below-seasonal temperatures and much-needed precipitation to parts of the West Coast.
For some areas across the eastern half of the country, though, we’re building a brutal spell of unseasonably hot and muggy conditions as parts of Canada feel the influence of a significant heat dome south of the border. Feels-like values will climb into the 40s for Canada Day celebrations throughout much of southern Ontario.
The pattern responsible for the contrasting temperatures will bring welcome rainfall to fire-prone areas in northern B.C., Alberta, and the Northwest Territories.
Moving east, we’re on the lookout for waves of thunderstorms pushing into the Great Lakes region as clusters of organized storm activity ride around the stateside heat ridge.
Folks in Atlantic Canada should pack an umbrella and alternate plans as a wet signal develops throughout the region as we kick off July.
Conditions start to change during the second week of July
We’ll start to see the pattern change as the month wears on.
Our heat-producing ridge in the East will begin to shift west, bringing higher temperatures and drier conditions to rain-soaked sections of the Prairies.
Expect near-normal conditions to build back toward Ontario, Quebec, and Atlantic Canada. Keep in mind that “normal” in the peak of summer is still warm enough to warrant air conditioning in many communities.
Aside from some hiccups here and there, forecasters expect this general trend to dominate the remainder of the month.
Above-seasonal temperatures in the West will contrast with more comfortable conditions paired with unsettled weather at times back east, a flip-flop from how Canada began the heart of the summer season.