Hecla, SD
Full City Profile · South Dakota · Brown County County
1.2
/5.0
F
Poor
204
Population
600/sq mi density
$47,100
Home Value
$211,244 Zillow
43°F
Avg Temperature
276 sunny days/yr
282
Violent Crime/100K
1,976 property/100K
F
Overall
1.2 / 5.0
Below average overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
282 violent crimes/100K
F
Education
1.5 / 5.0
5.8% bachelor's degree or higher
Hecla has a cool climate with an average annual temperature of 43°F (6°C). Winters average 11°F in January while summers reach 72°F in July. The area gets 276 sunny days per year. Annual precipitation totals 22.5 inches. The area receives 37.8 inches of snow annually. Air quality is rated Good with a median AQI of 35.
Temperature
11°F Jan (-12°C)
72°F Jul (22°C)
| Annual Average | 42.8°F |
| 21% below US avg | |
| January Average | 11°F (-12°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 1,302 ft (397 m) |
| Area | 0.3 sq mi (0.9 km²) |
| Population Density | 600/sq mi |
| Coordinates | 45.8821°N, 98.1519°W |
| Timezone | America/Chicago |
| County | Brown County County |
| Nearest Airport | Aberdeen Regional (ABR) 33 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 35.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| PM2.5 (Fine Particles) | 7.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 73.5 / 100 |
| Social Vulnerability | 24.1 / 100 |
| Community Resilience | 85.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very High |
| Lightning | Very Low |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 11°F (-12°C) | 0.5 in | Coldest |
| February | 17°F (-8°C) | 0.5 in | |
| March | 29°F (-2°C) | 1.2 in | |
| April | 44°F (7°C) | 2.0 in | |
| May | 58°F (14°C) | 2.6 in | |
| June | 67°F (19°C) | 3.4 in | Wettest |
| July | 72°F (22°C) | 2.7 in | Warmest |
| August | 70°F (21°C) | 2.2 in | |
| September | 59°F (15°C) | 2.0 in | |
| October | 46°F (8°C) | 1.4 in | |
| November | 29°F (-2°C) | 0.7 in | |
| December | 15°F (-9°C) | 0.4 in | Driest |
Hecla has a seasonal temperature swing of 61°F / from 11°F in January to 72°F in July. Total annual precipitation is 19.6 inches, with June being the wettest month (3.4") and December the driest (0.4").
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