Daylight through the yearLongest day (Jun 21): 15 h 33 min5:57 am – 9:30 pmShortest day (Dec 21): 8 h 50 min8:15 am – 5:05 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 89°F, lows 61°FColdest month January: highs 31°F, lows 8°F19 in of rain a yearwettest month June37 in of snow a year, on about 26 days41 days above 90°F, 169 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Oahe Dam station, 6 mi away; snow from Pierre Rgnl Ap
Parks and public landsPeoria Flats Recreation Areastate recreation area · under a mileCowan Game Production Areastate conservation land · under a mile · 229 acresChantier Creek Recreation Areastate recreation area · 4.6 mi · 100 acresEast Shore Recreation Areastate recreation area · 4.8 miOahe West Shore Recreation Areastate recreation area · 4.9 mi · 67 acresSpring Creek Recreation Areastate recreation area · 4.9 mi · 149 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes4 of magnitude 3 or more within 50 miles since 19700 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 3.7 on 30 May 202415 mi away, near Pierre, South DakotaMost recent: magnitude 3.7 on 30 May 202415 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowStanley County, SD, compared with all US countiesHighest-rated hazardsWinter weather Relatively LowIce storm Relatively LowSource: FEMA National Risk Index (county level)
Air quality93% of days had good air in 2025333 of 358 days measured24 moderate, 1 unhealthy for sensitive groups daysMedian index 18, worst day 112main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Hughes County, SD, 28 mi away
Drinking waterWr/lj - Mni Wiconiserves 4,720 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation1,597 ft487 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalAvera Saint Marys Hospital11.9 miSource: USGS National Structures Dataset
Getting aroundAirportPierre Regional Airport PIR13 miInterstateI-9040 miUS highwayUS 146.3 miCoachPierreJefferson Lines12 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 57557 ZIP area.
