Daylight through the yearLongest day (Jun 21): 15 h 24 min5:14 am – 8:37 pmShortest day (Dec 21): 8 h 59 min7:22 am – 4:21 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 89°F, lows 57°FColdest month January: highs 40°F, lows 14°F19 in of rain a year, on about 43 dayswettest month May32 in of snow a year, on about 16 days41 days above 90°F, 176 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Hot Springs station, 14 mi away
Parks and public landsBailey (s. Angostura) Recreation Areastate recreation area · 2.5 mi · 719 acresSouth Dakota Game Fish and Parks - Wildlife Divisionstate park · 4.4 mi · 4,920 acresAngostura Reservoir Game Production Areastate recreation area · 6.2 mi · 1,434 acresAngostura Recreation Areastate recreation area · 7.3 mi · 991 acresRomeystate conservation land · 10.7 mi · 923 acresWilliams Damstate conservation land · 11.3 miSource: USGS Protected Areas Database (PAD-US)
Earthquakes11 of magnitude 3 or more within 50 miles since 19701 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.0 on 14 Nov 201115 mi away, South DakotaMost recent: magnitude 3.6 on 9 Mar 202532 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very LowFall River County, SD, compared with all US countiesHighest-rated hazardsWildfire Relatively ModerateWinter weather Relatively ModerateSource: FEMA National Risk Index (county level)
Air quality74% of days had good air in 2025265 of 360 days measured95 moderate daysMedian index 45, worst day 87main pollutant: ozoneSource: US EPA Air Quality Index, nearest monitors: Custer County, SD, 31 mi away
Drinking waterHot Springsserves 3,395 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation3,494 ft1,065 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalFall River Health Services Hospital12.4 miFire stationCascade Fire Department7.8 miSource: USGS National Structures Dataset
Getting aroundAirportChadron Municipal Airport CDR35 miUS highwayUS 3859.9 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 57774 ZIP area.
