Average September Precipitation in the Northwest Territories

The tables below give monthly averages for rainfall plus snowfall during September at places in the Northwest Territories. Each location has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation.

Separate tables group places in the Southern and Northern parts of the Northwest Territories.

The calculation of days only includes the days when precipitation totalled at least 0.2 millimetres (0.008 inches). The month's total precipitation is an average of weather data collected during 1981 to 2010.

Southern Northwest Territories

Several of the communities in the southern portion of the Northwest Territories are on the shores of Great Slave Lake. The capital city of Yellowknife is on the north shore, and Hay River on the south shore.

Fort Simpson is a village at the confluence of the Liard and Mackenzie Rivers. Upstream on the Liard, is the hamlet of Fort Liard, located not far from the borders with the Yukon and British Columbia.

Fort Smith is along the Slave River, near the Alberta border. Located just east of Wood Buffalo National Park, the town serves as a gateway for visiting the Park.

Average monthly precipitation in September
Days Place Inches Milli­metres
10 Fort Liard 1.7 44
11 Fort Simpson 1.3 32
12 Fort Smith 1.7 42
12 Hay River 1.8 45
11 Yellowknife 1.4 36

Northern Northwest Territories

This region of the Northwest Territories includes the mainland and islands of the Canadian western Arctic. All the places here, but Normal Wells, lie north of the Arctic Circle.

The communities of Normal Wells and Inuvik sit alongside the Mackenzie River. Tuktoyaktuk, Paulatuk and Cape Parry are on the Arctic coast. Sachs Harbour is on the southwest corner of Banks Island, while Ulukhaktok is on the west coast of Victoria Island. Mould Bay is Environment Canada's northermost weather station in the Northwest Territories, located at 76° N latitude on Prince Patrick Island.

September averages for total rainfall plus snowfall
Days Place Inches Milli­metres
12 Cape Parry 1.1 27
13 Inuvik 1.2 29
13 Mould Bay 0.7 18
12 Norman Wells 1.3 33
11 Paulatuk 1.0 25
12 Sachs Harbour 0.9 22
13 Tuktoyaktuk 0.9 23
9 Ulukhaktok 0.8 20
Reference

Environment Canada. Meteorological Service of Canada. Canadian Climate Normals. 1981-2010 Climate Normals & Averages.

Northwest Territories Precipitation
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