Last Day Of Summer 2024 Canada Weather. When do the four seasons start in 2024—for spring, summer, fall, and winter? The two areas most prone to heat domes and drier weather this summer will be eastern canada and across the southwest u.s.

El niño was the key to our winter (or lack thereof) during the past year, but the global pattern is in a state of upheaval once again. But that’s thanks to one short blast of hot weather at the end of the month masking the previous three weeks of chilly conditions in brisk arctic winds.