St. Charles, ID
Full City Profile · Idaho · Bear Lake County County
3.1
/5.0
B
Good
168
Population
230/sq mi density
$197,700
Home Value
$330,621 Zillow
41°F
Avg Temperature
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B
Education
3.1 / 5.0
26.7% bachelor's degree or higher
St. Charles has a cool climate with an average annual temperature of 41°F (5°C). Winters average 18°F in January while summers reach 66°F in July. Annual precipitation totals 11.3 inches. The area receives 37.4 inches of snow annually.
Temperature
18°F Jan (-8°C)
66°F Jul (19°C)
| Annual Average | 41.0°F |
| 24% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 66°F (19°C) |
Geography
| Elevation | 5,963 ft (1,818 m) |
| Area | 0.6 sq mi (1.6 km²) |
| Population Density | 230/sq mi |
| Coordinates | 42.1118°N, 111.3903°W |
| Timezone | America/Boise |
| County | Bear Lake County County |
| Nearest Airport | Brigham City Regional (BMC) 52 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 6.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 42.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.6 m (12 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1909 | UTAH | Earthquake | 3.6 m | - | 114 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Wapi Lava Field (173 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 173 km |
| Hell's Half Acre | Shield | 1,631 m (5,351 ft) | -3250 | 177 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 0.8 in | Coldest |
| February | 20°F (-7°C) | 0.8 in | |
| March | 29°F (-2°C) | 0.8 in | |
| April | 40°F (4°C) | 1.1 in | |
| May | 49°F (10°C) | 1.8 in | Wettest |
| June | 58°F (15°C) | 0.9 in | |
| July | 66°F (19°C) | 0.6 in | Warmest, Driest |
| August | 64°F (18°C) | 0.8 in | |
| September | 55°F (13°C) | 1.1 in | |
| October | 43°F (6°C) | 1.1 in | |
| November | 31°F (-1°C) | 0.8 in | |
| December | 20°F (-6°C) | 0.8 in |
St. Charles has a seasonal temperature swing of 48°F / from 18°F in January to 66°F in July. Total annual precipitation is 11.3 inches, with May being the wettest month (1.8") and July the driest (0.6").