Big Delta, AK
Full City Profile · Alaska · Fairbanks North Star Borough County
4.6
/5.0
A+
Excellent
646
Population
14/sq mi density
$101,250
Median Income
$26,793 per capita
$276,400
Home Value
$320,632 Zillow
$1,470
Median Rent
23.0% income on rent
26°F
Avg Temperature
A+
Overall
4.6 / 5.0
Strong
B+
Economy
3.8 / 5.0
$101,250 median income, 26.2% unemployment
A+
Affordability
5.0 / 5.0
$276,400 home value, $1,470/mo rent
A+
Education
5.0 / 5.0
49.6% bachelor's degree or higher
Big Delta has a cool climate with an average annual temperature of 26°F (-3°C). Winters average -7°F in January while summers reach 58°F in July. Annual precipitation totals 12.6 inches. The area receives 42.8 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
-7°F Jan (-21°C)
58°F Jul (15°C)
| Annual Average | 25.9°F |
| 52% below US avg | |
| January Average | -7°F (-21°C) |
| July Average | 58°F (15°C) |
Geography
| Elevation | 1,020 ft (311 m) |
| Area | 53.3 sq mi (138.1 km²) |
| Population Density | 14/sq mi |
| Coordinates | 64.1570°N, 145.7409°W |
| Timezone | America/Anchorage |
| County | Fairbanks North Star Borough County |
| Nearest Airport | Fairbanks International (FAI) 78 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
| Good Days % | 58.2% |
| Unhealthy Days | 25 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0254 ppm |
| SO₂ (Sulfur Dioxide) | 1.74 ppb |
| CO (Carbon Monoxide) | 0.29 ppm |
| PM2.5 (Fine Particles) | 9.0 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 26.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Winter Weather | Very High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Relatively High |
| Volcano | Very Low |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | -7°F (-21°C) | 0.4 in | Coldest |
| February | 2°F (-17°C) | 0.3 in | |
| March | 9°F (-13°C) | 0.3 in | |
| April | 31°F (-1°C) | 0.3 in | Driest |
| May | 46°F (8°C) | 1.0 in | |
| June | 56°F (13°C) | 2.4 in | |
| July | 58°F (15°C) | 2.8 in | Warmest, Wettest |
| August | 52°F (11°C) | 2.1 in | |
| September | 41°F (5°C) | 1.3 in | |
| October | 23°F (-5°C) | 0.7 in | |
| November | 3°F (-16°C) | 0.6 in | |
| December | -3°F (-20°C) | 0.5 in |
Big Delta has a seasonal temperature swing of 65°F / from -7°F in January to 58°F in July. Total annual precipitation is 12.6 inches, with July being the wettest month (2.8") and April the driest (0.3").