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Weather & Climate in Jean Marie River, NT
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Jean Marie River has a cool climate with an average annual temperature of 28°F (-2°C). Winters average -10°F in January while summers reach 62°F in July / a wide seasonal temperature swing of 72°F. The area gets 309 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 14.8 inches (drier than the 38-inch national average). The area receives 5.5 inches of snow annually. The city sits at an elevation of 453 feet.
Temperature
-10°F Jan (-23°C)
62°F Jul (17°C)
| Annual Average | 27.9°F |
| 48% below US avg | |
| January Average | -10°F (-23°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 309 days/yr |
Geography
| Elevation | 453 ft (138 m) |
| Area | 14.5 sq mi (37.5 km²) |
| Population Density | 4/sq mi |
| Coordinates | 61.5251°N, 120.6258°W |
| Timezone | America/Yellowknife |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| Dec 10, 2001 | 185 km W of Hay River, Canada | M3.7 | 89 km | 20 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -10°F (-23°C) | 0.8 in | Coldest |
| February | -1°F (-19°C) | 0.6 in | |
| March | 10°F (-12°C) | 0.6 in | Driest |
| April | 31°F (-0°C) | 0.7 in | |
| May | 47°F (8°C) | 1.3 in | |
| June | 59°F (15°C) | 2.0 in | |
| July | 62°F (17°C) | 2.5 in | Warmest, Wettest |
| August | 58°F (14°C) | 2.2 in | |
| September | 47°F (8°C) | 1.3 in | |
| October | 31°F (-1°C) | 1.2 in | |
| November | 7°F (-14°C) | 0.9 in | |
| December | -6°F (-21°C) | 0.8 in |
Jean Marie River has a seasonal temperature swing of 72°F / from -10°F in January to 62°F in July. Total annual precipitation is 14.8 inches, with July being the wettest month (2.5") and March the driest (0.6").