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Weather & Climate in Lethbridge, AB
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lethbridge experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 29°F in January while summers reach 69°F in July. The area gets 297 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 11.2 inches (drier than the 38-inch national average). The area receives 30.1 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 2,982 feet.
Temperature
29°F Jan (-2°C)
69°F Jul (20°C)
| Annual Average | 46.7°F |
| 14% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 297 days/yr |
Geography
| Elevation | 2,982 ft (909 m) |
| Area | 1,087.1 sq mi (2,815.7 km²) |
| Population Density | 9/sq mi |
| Coordinates | 49.7000°N, 112.8186°W |
| Timezone | America/Edmonton |
Precipitation & Snow
Air Quality
Earthquake History
27 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Mar 4, 2000 | 35 km S of Pincher Creek, Canada | M4.6 | 106 km | 1 km |
| Feb 28, 2000 | 10 km NNE of Sparwood, Canada | M3.8 | 146 km | 10 km |
| Jul 2, 1992 | 4 km SSE of South Browning, Montana | M3.8 | 133 km | 10 km |
| May 1, 1997 | 35 km SSE of Magrath, Canada | M3.8 | 65 km | 5 km |
| Sep 29, 2009 | 42 km NW of Santa Rita, Montana | M3.6 | 77 km | 21 km |
| Jun 18, 1991 | 15 km SW of Black Diamond, Canada | M3.5 | 147 km | 5 km |
| Jan 3, 2008 | 13 km SSE of Magrath, Canada | M3.5 | 44 km | 38 km |
| Jan 20, 2003 | 10 km S of Little Browning, Montana | M3.5 | 135 km | 1 km |
| Jan 1, 1993 | 20 km WSW of Sweet Grass, Montana | M3.4 | 100 km | 5 km |
| Jan 22, 1993 | 33 km SSE of Raymond, Canada | M3.4 | 62 km | 5 km |
| Nov 21, 1992 | Western Montana | M3.4 | 113 km | 5 km |
| Aug 15, 1996 | 33 km WNW of Sweet Grass, Montana | M3.4 | 76 km | 5 km |
| Nov 6, 2002 | 3 km SSE of Little Browning, Montana | M3.4 | 127 km | 1 km |
| Sep 7, 2014 | 36 km SSE of Magrath, Canada | M3.4 | 66 km | 15 km |
| Nov 17, 1992 | 39 km NNW of Santa Rita, Montana | M3.4 | 79 km | 5 km |
| Mar 5, 1995 | 2 km NW of Cut Bank, Montana | M3.3 | 122 km | 10 km |
| Jan 12, 2008 | 38 km W of Pincher Creek, Canada | M3.3 | 123 km | 1 km |
| Jan 11, 2003 | 44 km SSE of Magrath, Canada | M3.2 | 74 km | 10 km |
| May 29, 2009 | 11 km S of Little Browning, Montana | M3.2 | 136 km | 0 km |
| Oct 15, 2000 | 33 km SSW of Pincher Creek, Canada | M3.2 | 106 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: POLL HAVEN (4,495 acres, 2003).
| Year | Name | Acres Burned | Distance |
| 2003 | POLL HAVEN | 4,495 | 94 km |
| 2017 | WOLVERINE | 3,126 | 98 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 0.7 in | |
| February | 24°F (-5°C) | 0.5 in | Driest |
| March | 32°F (-0°C) | 0.9 in | |
| April | 43°F (6°C) | 1.2 in | |
| May | 53°F (12°C) | 2.0 in | |
| June | 60°F (16°C) | 3.0 in | Wettest |
| July | 69°F (20°C) | 1.6 in | Warmest |
| August | 64°F (18°C) | 1.6 in | |
| September | 55°F (13°C) | 1.5 in | |
| October | 45°F (7°C) | 0.7 in | |
| November | 30°F (-1°C) | 0.6 in | |
| December | 21°F (-6°C) | 0.6 in | Coldest |
Lethbridge has a seasonal temperature swing of 48°F / from 21°F in December to 69°F in July. Total annual precipitation is 14.9 inches, with June being the wettest month (3.0") and February the driest (0.5").