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Sioux Falls city, SD

ZIP 57117 — Climate & Environment

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

Low Snow Area

Climate, disaster risk, air quality, and environmental safety

Environment & Risk in ZIP Code 57117

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 Sioux Falls city, SD as Relatively Moderate (composite score 89.5), which is elevated versus much of the country. The strongest component scores on US5 are flood (85.5) and wildfire (71.3). 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 Moderate
Risk index
89.5
Flood risk
85.5
Wildfire risk
71.3
Earthquake risk
37.2
Tornado risk
98.4
Winter weather risk
96.3
Hail risk
92.5
Air Quality (EPA AQI)

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

36
Median AQI
82.4%
Good Days

Air quality healthy to breathe

0.6%
Unhealthy / Hazardous

Sensitive groups or worse

Climate & Weather in ZIP Code 57117

Climate normals for Sioux Falls city, SD show little to no average snow and around 28.3 inches of annual precipitation. Pair that with FEMA NRI hazard context (overall rating Relatively Moderate) 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
5a
Annual Snow Days
0
Annual Precipitation
28.3 in
FEMA NRI rating
Relatively Moderate

Climate & Environment key statistics

Climate statistics
Climate
Hardiness zone5a
Annual precip (in)28.3
Snow days0
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Moderate
NRI risk index89.5
Flood risk (NRI)85.5
Wildfire risk (NRI)71.3
IRS net migration1
Median AQI36
Good AQI days82.4%