Castleford, ID
Full City Profile · Idaho · Twin Falls County County
3.1
/5.0
B
Good
166
Population
1,660/sq mi density
$44,167
Median Income
$19,571 per capita
$883
Median Rent
22.5% income on rent
48°F
Avg Temperature
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$44,167 median income, 2.9% unemployment
A
Affordability
4.5 / 5.0
F
Education
1.4 / 5.0
4.9% bachelor's degree or higher
Castleford experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 28°F in January while summers reach 71°F in July. Annual precipitation totals 10.7 inches. The area receives 24.2 inches of snow annually. Air quality is rated Good with a median AQI of 23.
Temperature
28°F Jan (-2°C)
71°F Jul (22°C)
| Annual Average | 48.1°F |
| 11% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 3,874 ft (1,181 m) |
| Area | 0.1 sq mi (0.2 km²) |
| Population Density | 1,660/sq mi |
| Coordinates | 42.5206°N, 114.8718°W |
| Timezone | America/Boise |
| County | Twin Falls County County |
| Nearest Airport | Joslin Field/Magic Valley Regional (TWF) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 23.0 |
| Rating | Good |
| Good Days % | 76.1% |
| Unhealthy Days | 7 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 47.0 / 100 |
| Social Vulnerability | 24.9 / 100 |
| Community Resilience | 47.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Black Butte Crater Lava Field (85 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Black Butte Crater Lava Field | Shield | 1,478 m (4,849 ft) | -8400 | 85 km |
| Wapi Lava Field | Shield | 1,604 m (5,262 ft) | -300 | 141 km |
| Craters of the Moon | Pyroclastic cone(s) | 2,005 m (6,578 ft) | -130 | 150 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 1.2 in | |
| February | 33°F (0°C) | 1.1 in | |
| March | 41°F (5°C) | 1.0 in | |
| April | 47°F (8°C) | 1.2 in | |
| May | 55°F (13°C) | 1.4 in | Wettest |
| June | 63°F (17°C) | 0.8 in | |
| July | 71°F (22°C) | 0.2 in | Warmest, Driest |
| August | 69°F (21°C) | 0.3 in | |
| September | 60°F (16°C) | 0.5 in | |
| October | 48°F (9°C) | 0.8 in | |
| November | 36°F (2°C) | 0.9 in | |
| December | 27°F (-3°C) | 1.3 in | Coldest |
Castleford has a seasonal temperature swing of 44°F / from 27°F in December to 71°F in July. Total annual precipitation is 10.7 inches, with May being the wettest month (1.4") and July the driest (0.2").