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Alpena town, SD

ZIP 57312 — Climate & Environment

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 57312

Disaster Risk (FEMA NRI)

County-linked natural hazard risk from FEMA National Risk Index — useful for comparing insurance and disaster exposure.

FEMA’s National Risk Index rates natural-hazard risk for Alpena town, SD as Relatively Low (composite score 47.1), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (74.7) and flood (45.6). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Overall rating
Relatively Low
Risk index
47.1
Flood risk
45.6
Wildfire risk
74.7
Earthquake risk
26.3
Tornado risk
64.6
Winter weather risk
83.6
Hail risk
77.3

Climate & Weather in ZIP Code 57312

Climate normals for Alpena town, SD show little to no average snow and around 25.7 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Low) when evaluating long-term housing and insurance exposure.

7-day weather forecast

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Sunrise, sunset & moon

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Monthly Temperature

30-year climate normals (avg. monthly temperature)

Climate Data
Hardiness Zone
4b
Annual Snow Days
0
Annual Precipitation
25.66 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone4b
Annual precip (in)25.66
Snow days0
Broadband access94.8%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index47.1
Flood risk (NRI)45.6
Wildfire risk (NRI)74.7
IRS net migration38