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ZIP 57426 — 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 57426

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 SD as Relatively Low (composite score 73.5), which is elevated versus much of the country. The strongest component scores on US5 are wildfire (77.1) and flood (63.1). 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
73.5
Flood risk
63.1
Wildfire risk
77.1
Earthquake risk
27.8
Tornado risk
70.1
Winter weather risk
98.2
Hail risk
86.6
Air Quality (EPA AQI)

County-level annual air quality from EPA. Good days = healthy to breathe; unhealthy = sensitive groups or worse.

25
Median AQI
87.1%
Good Days

Air quality healthy to breathe

0.0%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 57426

Climate normals for SD show little to no average snow and around 22.5 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
4a
Annual Snow Days
0
Annual Precipitation
22.46 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone4a
Annual precip (in)22.46
Snow days0
Broadband access73.7%
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index73.5
Flood risk (NRI)63.1
Wildfire risk (NRI)77.1
IRS net migration3
Median AQI25
Good AQI days87.1%