Climate in Spearfish, SD

Spearfish climate

Black Hills seasons support outdoor life, while winter, wildfire, smoke, creek flooding, and heating shape the year

The city information lists 25.1 degrees Celsius, 42 percent humidity, and AQI 49. Warm seasons support parks, the recreation path, canyon drives, fishing, gardens, and outdoor events, while winter snow, ice, wind, freezing temperatures, and short days change the household's movement. Smoke from regional fires, heavy rain, and creek flooding can also interrupt outdoor plans. The library, theater, hatchery, shopping, and home activities provide useful indoor alternatives.

Spearfish's floodplain information recognizes Spearfish Creek and other tributaries as hazards, and city alerts cover winter weather, fire, power outages, and severe storms. Inspect heating, insulation, windows, roof, gutters, drainage, trees, snow storage, plowing, air filtration, power backup, cell service, internet, and insurance. Run the grocery, pharmacy, hospital, library, park, and home routes in summer, after rain, and on an icy morning if possible.

Living through the seasons

Summers are the easier season. Winter comfort deserves a closer look.

Overall Comfort: Moderate

Average Summer High: 84°F
Days Above 90°F: 30 days/year
Summer Feel: Very Good

Average Winter Low: 18°F / -8°C
Days Below Freezing: 173 days/year
Winter Feel: Poor

The shape of the year

Humidity, comfortable months, and sunshine show how the seasons differ.

Humidity: 63%
Comfortable Months: 4 months
Solar Exposure: 1542 peak sun hrs/yr

Air, allergies, and weather

Air quality and allergies shape day to day comfort. The best months and weather risks help with timing.

Air and allergies

Air Quality: Excellent
Allergy Levels: Moderate

Current AQI

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Current PM2.5

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Timing and weather

Long Term Fine Particle Pollution: 4.7 µg/m³ 2021-2025 modeled average
Best Months: Jun, Jul, Aug, Sep
Toughest Months: Feb, Jan, Dec
Heat Risk: Moderate
Drought Risk: Low
Weather Volatility: Strong

Spearfish in everyday life

Could Spearfish work for you?

What may work well

Warm seasons support parks, trails, canyon drives, fishing, gardens, outdoor events, and Black Hills recreation.
Grace Balloch Library, Matthews Opera House, D.C. Booth, shopping, Monument Health, and home activities provide alternatives when weather changes plans.

What to think about

Snow, ice, wind, cold, wildfire smoke, fire, creek flooding, heavy rain, AQI 49, and power interruptions can change the week quickly.
Heating, roof, gutters, drainage, snow storage, plowing, trees, air filtration, fire preparation, power backup, and insurance deserve exact home review.
A mild summer visit will not show how the home, roads, hospital, and daily errands perform during snow, ice, smoke, rapid thaw, or a long cold night.

Choose Spearfish for the whole year

Inspect heat and water control
Review heating, insulation, windows, roof, gutters, lot grade, drainage, crawl space, trees, floodplain information, snowmelt, and utility history.
Map the winter and care route
Compare snow and ice, plowing, flood exposure, roads, hospital, grocery, pharmacy, power, alerts, insurance, and family routes.
Keep a flexible calendar
Pair parks, recreation path, library, theater, hatchery, care, shopping, and canyon outings with indoor choices for snow, ice, smoke, wind, rain, storms, or low energy.

Questions retirees ask

What is the weather like in Spearfish?

The city information lists 25.1 degrees Celsius, 42 percent humidity, and AQI 49. Expect warm outdoor seasons and cold winters with snow, ice, wind, wildfire smoke, creek flooding, and changing road conditions.

How should I inspect a Spearfish home for weather?

Check heating, insulation, windows, roof, gutters, drainage, floodplain information, creek exposure, snow storage, plowing, trees, fire preparation, air filtration, power backup, insurance, and utility history.

What can I do when weather stops outdoor plans?

Grace Balloch Library, Matthews Opera House, D.C. Booth during its open season, indoor shopping and restaurants, Monument Health services, family contact, and home activities can keep the week active during snow, ice, smoke, rain, or storms.

Spearfish supports an active Black Hills life when the home handles heating and snow and the household has a serious plan for fire, smoke, flooding, power, insurance, and care access. The climate plan belongs in the address decision from the first visit.

Local context for Spearfish

City of Spearfish parks
Used for Spearfish park acreage, 22 developed parks, recreation path, Lookout Mountain Park, sports complexes, restrooms, and outdoor facilities.
City of Spearfish floodplain
Used for Spearfish Creek and tributary flood risk, floodplain management, National Flood Insurance Program information, and property review.
Spearfish Canyon Scenic Byway
Used for Spearfish Canyon Scenic Byway, Black Hills National Forest access, scenic drive, and regional recreation.
Black Hills National Forest scenic byway
Used for Spearfish Canyon route length, drive time, Black Hills forest setting, and scenic access.
Spearfish emergency alerts
Used for Severe weather, wildfire, power outage, winter weather, plowing, parking, and public emergency notices.
South Dakota Game Fish and Parks Spearfish Canyon
Used for Spearfish Canyon nature area, state recreation, and Black Hills outdoor access.
EPA AirData
Used for Air quality reference used with prepared Spearfish climate facts.
Open Meteo historical weather
Used for Temperature and humidity reference used with prepared Spearfish weather facts.

Sources

Climate comfort helps estimate how practical daily life may feel across the year, especially for heat, humidity, cold, and seasonal constraints.

Seasonal timing, health conditions, air conditioning, air quality, and elevation can change the lived experience.

NASA POWER
Used for Overall Comfort, Summer Feel, Average Summer High, Days Above 90°F, Winter Feel, Average Winter Low, Days Below Freezing, Humidity, Comfortable Months, Solar Exposure, Best Months, Toughest Months, Allergy Levels, Heat Risk
Open-Meteo Air Quality + Humidity Heuristic
Used for Air Quality, Long-Term Fine-Particle Pollution, Weather Volatility
Checked 2026-07-10
Federal Emergency Management Agency National Risk Index
Used for Drought Risk

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Research and writing byGrant Gibson

How this city research is made

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