A closer look at fall
Anomalies associated with La Niña still weakly remain across North America making the seasonal forecast challenging. Much like the 2011 Summer Outlook, changeable weather is expected in central and eastern Canada with alternating spells of warm and cool weather, while other areas will experience milder temperature swings. An active storm track from the northern U.S. Plains through the upper Great Lakes and another one for Atlantic Canada is associated with the changeable weather and will yield above average precipitation in these parts. See below for provincial and regional breakdowns for September 1 through November 30.
Temperatures for the fall period are expected to be near normal with the exception of the central and north coasts where temperatures are expected to be below normal. The central and south interior regions will also experience lower than normal precipitation while the rest of the province can expect near normal precipitation.
Alberta and Saskatchewan
Both provinces can expect a very typical fall season with near normal temperatures and precipitation.
Manitoba will see near normal temperatures and precipitation this fall, except for the southeast tip of the province where above normal precipitation is expected.
Regions along the Lake Superior shore can expect higher than normal temperatures and precipitation this autumn. The rest of the province will see near normal temperatures and precipitation.
Northern Quebec will experience warmer than normal temperatures and near normal precipitation. The rest of the province can expect near normal fall conditions.
The Maritimes and Newfoundland
Temperatures across the Maritimes and Newfoundland will be near normal this fall. Above normal temperatures are expected for northwest Labrador. Labrador and the Northern Peninsula in Newfoundland will experience near normal precipitation. The rest of Newfoundland and all of the Maritime provinces will have above normal precipitation.
Yukon, Northwest Territories and Nunavut can expect a very typical fall season with near normal temperatures and precipitation.
|City||Temperature Forecast||Precipitation Forecast||Average temperatures||Average Precipitation|
|Vancouver||Near normal||Near normal||High 14|
|Victoria||Near normal||Near normal||High 14|
|Calgary||Near normal||Near normal||High 11|
|Edmonton||Near normal||Near normal||High 9|
|Regina||Near normal||Near normal||High 10|
|Saskatoon||Near normal||Near normal||High 9|
|Winnipeg||Near normal||Near normal||High 10|
|Thunder Bay||Above normal||Above normal||High 10|
|Sudbury||Near normal||Near normal||High 10|
|Ottawa||Near normal||Near normal||High 12|
|Toronto||Near normal||Near normal||High 14|
|Windsor||Near normal||Near normal||High 16|
|Montreal||Near normal||Near normal||High 13|
|Fredericton||Near normal||Above normal||High 13|
|Moncton||Near normal||Above normal||High 13|
|Charlottetown||Near normal||Above normal||High 12|
|Halifax||Near normal||Above normal||High 13|
|St. John’s||Near normal||Above normal||High 11|
|Iqaluit||Near normal||Near normal||High -2|
|Yellowknife||Near normal||Near normal||High 1|
|Whitehorse||Near normal||Near normal||High 4|