**** Info via Environment Canada
September temperature outlook via Environment Canada
Today marks the start of meteorological fall, as we prepare ourselves for cooler temperatures and the gradual shift from flip-flops to fuzzy socks in the Northern Hemisphere! Meteorological fall is a three-month period, starting on September 1st and ending on November 30th, used by meteorologists to analyze and track seasonal weather patterns.
Let’s have a look at the map for the month of September, to see whether temperatures in your region will be below or above average.
The forecasts are categorized as follows:
- blue indicates the probability that temperatures will be below normal;
- grey to purple indicates the probability that temperatures will be near normal;
- yellow to red indicates the probability that temperatures will be above normal; and
- white indicates uncertainty regarding the temperature tendency this month.
All categories are compared to the 30 months of September between the 1991-2020 period. This map is a prediction of the daily average temperature anomaly (difference from normal) at 2 metres above ground, the standard forecast height. It is not a daily maximum or minimum temperature forecast.
Long-range forecast user guide.
August overview
Significant areas of the Prairies, British Columbia, Yukon, Northwest Territories and Nunavut experienced a warmer-than-average August. It was the opposite for much of Southern Ontario and Quebec as well as the Maritime Provinces, where temperatures were closer to or below average for most of the month.
Map of the temperature anomaly (difference from normal) across the country for August. We can see that much of the western and northern parts of the country were above-average, while the rest of Canada was average or below-average.
Dry conditions continued in British Columbia, Yukon, Northwest Territories, parts of the northern and southern Prairies, northern Ontario, and Quebec, extending the drought from June and July to August. These dry conditions mixed with warmer-than-average temperatures for the month of August helped to fuel the forest fires raging across the country.
Map of the precipitation anomaly (difference from normal) across the country for August.
While parts of the country saw a deficit of precipitation, most of Ontario, southern Quebec through the Gaspé, the Maritime Provinces, and Baffin Island saw well-above-average precipitation through August. Severe thunderstorms brought significant flooding across many Ontario areas, tennis ball-sized hail, and six tornadoes. For the Maritime provinces, well-above-average precipitation through August continued a generally wet summer, especially in Nova Scotia. Through June, July and August, parts of the Maritime Provinces received rainfall that was 1.5 to 2.5 higher than the usual average.
