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Weather & Climate in Tlell, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tlell experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 36°F in January while summers reach 56°F in July. The area gets 240 sunny days per year, above the national average. Annual precipitation totals 52.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 16 feet.
Temperature
36°F Jan (2°C)
56°F Jul (14°C)
| Annual Average | 45.7°F |
| 15% below US avg | |
| January Average | 36°F (2°C) |
| July Average | 56°F (14°C) |
| Sunny Days | 240 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 2,478.0 sq mi (6,418.1 km²) |
| Population Density | 0/sq mi |
| Coordinates | 53.5620°N, 131.9300°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
224 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.8.
| Oct 28, 2012 | 206 km SW of Prince Rupert, Canada | M7.8 | 87 km | 14 km |
| Oct 28, 2012 | 237 km SW of Prince Rupert, Canada | M6.3 | 109 km | 9 km |
| Feb 17, 2001 | 151 km SSW of Hydaburg, Alaska | M6.2 | 117 km | 20 km |
| Oct 30, 2012 | 241 km SSW of Prince Rupert, Canada | M6.2 | 133 km | 9 km |
| Oct 12, 2001 | 225 km SSW of Prince Rupert, Canada | M6.1 | 105 km | 20 km |
| Oct 28, 2012 | Haida Gwaii, Canada | M5.6 | 141 km | 10 km |
| Oct 28, 2012 | 222 km SSW of Prince Rupert, Canada | M5.5 | 110 km | 10 km |
| Oct 28, 2012 | 226 km SW of Prince Rupert, Canada | M5.4 | 95 km | 10 km |
| Jan 12, 1990 | 85 km WSW of Prince Rupert, Canada | M5.3 | 50 km | 10 km |
| Oct 28, 2012 | 256 km SSW of Prince Rupert, Canada | M5.3 | 147 km | 10 km |
| Oct 30, 2012 | 261 km SSW of Prince Rupert, Canada | M5.3 | 150 km | 19 km |
| Oct 28, 2012 | 236 km SSW of Prince Rupert, Canada | M5.3 | 115 km | 10 km |
| Oct 28, 2012 | 240 km SSW of Prince Rupert, Canada | M5.2 | 125 km | 10 km |
| Oct 28, 2012 | 246 km SSW of Prince Rupert, Canada | M5.2 | 125 km | 10 km |
| Nov 1, 2012 | 226 km SSW of Prince Rupert, Canada | M5.2 | 113 km | 20 km |
| Oct 28, 2012 | 234 km SW of Prince Rupert, Canada | M5.2 | 108 km | 10 km |
| Oct 28, 2012 | 237 km SSW of Prince Rupert, Canada | M5.2 | 140 km | 10 km |
| Oct 28, 2012 | 236 km SW of Prince Rupert, Canada | M5.2 | 111 km | 10 km |
| Oct 28, 2012 | 230 km SSW of Prince Rupert, Canada | M5.2 | 142 km | 10 km |
| Sep 5, 2002 | 139 km SSW of Hydaburg, Alaska | M5.1 | 134 km | 20 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 13.0 m (43 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2012 | BRITISH COLUMBIA | Earthquake | 13.0 m | 1 | 87 km |
| 1963 | GRAHAM ISLAND, BRITISH COLUMBIA | Unknown | 5.5 m | 1 | 53 km |
| 1949 | BRITISH COLUMBIA | Eruption + Earthquake | 0.6 m | — | 91 km |
| 2001 | QUEEN CHARLOTTE ISLANDS | Earthquake | 0.1 m | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 5.9 in | Coldest |
| February | 38°F (3°C) | 4.5 in | |
| March | 39°F (4°C) | 4.0 in | |
| April | 43°F (6°C) | 3.6 in | |
| May | 47°F (8°C) | 2.7 in | |
| June | 52°F (11°C) | 2.5 in | |
| July | 56°F (14°C) | 2.2 in | Driest |
| August | 58°F (14°C) | 2.9 in | Warmest |
| September | 54°F (12°C) | 4.0 in | |
| October | 48°F (9°C) | 7.2 in | Wettest |
| November | 41°F (5°C) | 6.7 in | |
| December | 37°F (3°C) | 6.5 in |
Tlell has a seasonal temperature swing of 22°F / from 36°F in January to 58°F in August. Total annual precipitation is 52.7 inches, with October being the wettest month (7.2") and July the driest (2.2").