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Spearfish city, SD

ZIP 57799 — 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 57799

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 Spearfish city, SD as Relatively Low (composite score 49.3), which is near the middle of the national distribution. The strongest component scores on US5 are wildfire (93.2) and flood (57.1). 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
49.3
Flood risk
57.1
Wildfire risk
93.2
Earthquake risk
38.1
Tornado risk
37.8
Winter weather risk
89.4
Hail risk
84.3

Climate & Weather in ZIP Code 57799

Climate normals for Spearfish city, SD show little to no average snow and around 21.4 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
N/A
Annual Snow Days
0
Annual Precipitation
21.41 in
FEMA NRI rating
Relatively Low

Climate & Environment key statistics

Climate statistics
Climate
Annual precip (in)21.41
Snow days0
Risk & Air Quality statistics
Risk & Air Quality
NRI ratingRelatively Low
NRI risk index49.3
Flood risk (NRI)57.1
Wildfire risk (NRI)93.2
IRS net migration35