Letha, ID
Full City Profile · Idaho · Canyon County County
3.5
/5.0
B+
Good
566
Population
1,258/sq mi density
52°F
Avg Temperature
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Education
3.5 / 5.0
0.0% bachelor's degree or higher
Letha experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 31°F in January while summers reach 75°F in July. Annual precipitation totals 13.3 inches. The area receives 7.4 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
31°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 51.5°F |
| 5% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 2,285 ft (696 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 1,258/sq mi |
| Coordinates | 43.8928°N, 116.6470°W |
| Timezone | America/Boise |
| County | Canyon County County |
| Nearest Airport | Boise Air Trml/Gowen Field (BOI) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 67.8% |
| Unhealthy Days | 15 |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 7.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 71.7 / 100 |
| Social Vulnerability | 18.5 / 100 |
| Community Resilience | 42.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Jordan Craters (106 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Jordan Craters | Volcanic field | 1,473 m (4,833 ft) | -1250 | 106 km |
| Diamond Craters | Volcanic field | 1,435 m (4,708 ft) | -5610 | 191 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 1.8 in | Coldest |
| February | 36°F (2°C) | 1.3 in | |
| March | 44°F (7°C) | 1.6 in | |
| April | 49°F (10°C) | 1.2 in | |
| May | 58°F (14°C) | 1.5 in | |
| June | 66°F (19°C) | 0.8 in | |
| July | 75°F (24°C) | 0.3 in | Warmest |
| August | 74°F (23°C) | 0.2 in | Driest |
| September | 64°F (18°C) | 0.4 in | |
| October | 52°F (11°C) | 0.9 in | |
| November | 39°F (4°C) | 1.3 in | |
| December | 31°F (-0°C) | 2.1 in | Wettest |
Letha has a seasonal temperature swing of 44°F / from 31°F in January to 75°F in July. Total annual precipitation is 13.3 inches, with December being the wettest month (2.1") and August the driest (0.2").