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Weather & Climate in Fort McPherson, NT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fort McPherson has a cool climate with an average annual temperature of 18°F (-8°C). Winters average -19°F in January while summers reach 59°F in July / a wide seasonal temperature swing of 78°F. The area gets 313 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 12.8 inches (drier than the 38-inch national average). The area receives 7.6 inches of snow annually.
Temperature
-19°F Jan (-28°C)
59°F Jul (15°C)
| Annual Average | 18.1°F |
| 66% below US avg | |
| January Average | -19°F (-28°C) |
| July Average | 59°F (15°C) |
| Sunny Days | 313 days/yr |
Geography
| Area | 20.8 sq mi (53.8 km²) |
| Population Density | 31/sq mi |
| Coordinates | 67.4386°N, 134.8854°W |
| Timezone | America/Edmonton |
Precipitation & Snow
Air Quality
Earthquake History
202 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Jan 17, 2008 | 106 km NW of Fort McPherson, Canada | M5.0 | 107 km | 10 km |
| Dec 11, 2012 | 96 km NW of Fort McPherson, Canada | M4.9 | 96 km | 10 km |
| Mar 9, 1997 | 109 km SSW of Fort McPherson, Canada | M4.7 | 109 km | 10 km |
| Apr 8, 2008 | 135 km S of Fort McPherson, Canada | M4.6 | 135 km | 20 km |
| Nov 23, 1995 | 136 km S of Fort McPherson, Canada | M4.4 | 136 km | 10 km |
| May 29, 1994 | 23 km W of Fort McPherson, Canada | M4.4 | 24 km | 18 km |
| Oct 19, 1999 | 86 km SSW of Fort McPherson, Canada | M4.4 | 87 km | 20 km |
| Feb 21, 2016 | 105 km NW of Fort McPherson, Canada | M4.3 | 105 km | 14 km |
| Jan 8, 2010 | 83 km SW of Fort McPherson, Canada | M4.2 | 84 km | 10 km |
| Jul 2, 2011 | 125 km S of Fort McPherson, Canada | M4.2 | 126 km | 20 km |
| Jan 29, 2024 | 195 km SSW of Inuvik, Canada | M4.2 | 81 km | 10 km |
| Nov 7, 2009 | 74 km SSW of Fort McPherson, Canada | M4.2 | 74 km | 10 km |
| Jul 11, 2010 | 77 km SSW of Fort McPherson, Canada | M4.1 | 77 km | 20 km |
| Oct 6, 1994 | 65 km SW of Fort McPherson, Canada | M4.1 | 66 km | 10 km |
| Feb 16, 2006 | 69 km SW of Fort McPherson, Canada | M4.1 | 70 km | 1 km |
| May 23, 2024 | 109 km WSW of Inuvik, Canada | M4.1 | 102 km | 9 km |
| Aug 10, 2012 | 106 km W of Inuvik, Canada | M4.0 | 110 km | 20 km |
| Mar 1, 2009 | 97 km SSW of Fort McPherson, Canada | M4.0 | 97 km | 15 km |
| Jan 28, 2008 | 83 km NW of Fort McPherson, Canada | M4.0 | 83 km | 20 km |
| Feb 29, 2016 | 118 km SSW of Fort McPherson, Canada | M4.0 | 118 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -19°F (-28°C) | 0.7 in | Coldest |
| February | -15°F (-26°C) | 0.7 in | |
| March | -6°F (-21°C) | 0.8 in | |
| April | 14°F (-10°C) | 0.7 in | Driest |
| May | 35°F (2°C) | 0.7 in | |
| June | 54°F (12°C) | 1.0 in | |
| July | 59°F (15°C) | 1.5 in | Warmest |
| August | 53°F (12°C) | 1.7 in | |
| September | 40°F (5°C) | 1.1 in | |
| October | 20°F (-7°C) | 1.7 in | Wettest |
| November | -4°F (-20°C) | 1.3 in | |
| December | -13°F (-25°C) | 1.1 in |
Fort McPherson has a seasonal temperature swing of 78°F / from -19°F in January to 59°F in July. Total annual precipitation is 12.8 inches, with October being the wettest month (1.7") and April the driest (0.7").