Home   Weather   Canada   Fort Simpson   Climate
Flag for Canada

Climate & Weather Averages in Fort Simpson, Northwest Territories, Canada

Currently: 12 °C. Passing clouds. (Weather station: Fort Simpson, Canada). See more current weather

Annual Weather Averages Near Fort Simpson

Averages are for Fort Simpson, which is 13 kilometers from Fort Simpson.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Fort Simpson

High Temp: 25 °C

Low Temp: -28 °C

Mean Temp: -2 °C

Precipitation: 32.5 mm

Humidity: 73%

Dew Point: -7 °C

Wind: 15 km/h

Pressure: 101.50 kPa

Visibility: 22 km

January Climate & Weather Averages in Fort Simpson

High Temp: -19 °C

Low Temp: -28 °C

Mean Temp: -23 °C

Precipitation: 19.1 mm

Humidity: 80%

Dew Point: -26 °C

Wind: 12 km/h

Pressure: 101.94 kPa

Visibility: 21 km

February Climate & Weather Averages in Fort Simpson

High Temp: -14 °C

Low Temp: -25 °C

Mean Temp: -19 °C

Precipitation: 16.2 mm

Humidity: 79%

Dew Point: -22 °C

Wind: 14 km/h

Pressure: 102.03 kPa

Visibility: 22 km

March Climate & Weather Averages in Fort Simpson

High Temp: -6 °C

Low Temp: -19 °C

Mean Temp: -13 °C

Precipitation: 16.3 mm

Humidity: 74%

Dew Point: -17 °C

Wind: 17 km/h

Pressure: 101.90 kPa

Visibility: 22 km

April Climate & Weather Averages in Fort Simpson

High Temp: 6 °C

Low Temp: -7 °C

Mean Temp: 0 °C

Precipitation: 15.5 mm

Humidity: 63%

Dew Point: -7 °C

Wind: 17 km/h

Pressure: 101.63 kPa

Visibility: 23 km

May Climate & Weather Averages in Fort Simpson

High Temp: 17 °C

Low Temp: 2 °C

Mean Temp: 10 °C

Precipitation: 31.2 mm

Humidity: 55%

Dew Point: 0 °C

Wind: 17 km/h

Pressure: 101.52 kPa

Visibility: 24 km

June Climate & Weather Averages in Fort Simpson

High Temp: 23 °C

Low Temp: 9 °C

Mean Temp: 16 °C

Precipitation: 56.2 mm

Humidity: 59%

Dew Point: 7 °C

Wind: 16 km/h

Pressure: 101.16 kPa

Visibility: 24 km

July Climate & Weather Averages in Fort Simpson

High Temp: 25 °C

Low Temp: 11 °C

Mean Temp: 18 °C

Precipitation: 59.7 mm

Humidity: 66%

Dew Point: 11 °C

Wind: 15 km/h

Pressure: 101.14 kPa

Visibility: 23 km

August Climate & Weather Averages in Fort Simpson

High Temp: 22 °C

Low Temp: 9 °C

Mean Temp: 15 °C

Precipitation: 61.2 mm

Humidity: 71%

Dew Point: 9 °C

Wind: 15 km/h

Pressure: 101.15 kPa

Visibility: 23 km

September Climate & Weather Averages in Fort Simpson

High Temp: 15 °C

Low Temp: 3 °C

Mean Temp: 9 °C

Precipitation: 35.7 mm

Humidity: 75%

Dew Point: 4 °C

Wind: 15 km/h

Pressure: 101.14 kPa

Visibility: 23 km

October Climate & Weather Averages in Fort Simpson

High Temp: 3 °C

Low Temp: -5 °C

Mean Temp: -1 °C

Precipitation: 30.8 mm

Humidity: 85%

Dew Point: -3 °C

Wind: 14 km/h

Pressure: 101.24 kPa

Visibility: 20 km

November Climate & Weather Averages in Fort Simpson

High Temp: -10 °C

Low Temp: -18 °C

Mean Temp: -14 °C

Precipitation: 25.7 mm

Humidity: 85%

Dew Point: -16 °C

Wind: 13 km/h

Pressure: 101.50 kPa

Visibility: 20 km

December Climate & Weather Averages in Fort Simpson

High Temp: -17 °C

Low Temp: -26 °C

Mean Temp: -21 °C

Precipitation: 22.5 mm

Humidity: 81%

Dew Point: -24 °C

Wind: 12 km/h

Pressure: 101.67 kPa

Visibility: 21 km

Quick Climate Info

Hottest Month July (18 °C avg)
Coldest Month January (-23 °C avg)
Wettest Month August (61.2 mm avg)
Windiest Month May (17 km/h avg)
Annual precip. 390.1 mm (per year)

Weather by CustomWeather, © 2025