Daylight through the yearLongest day (Jun 21): 15 h 46 min5:38 am – 9:24 pmShortest day (Dec 21): 8 h 38 min8:08 am – 4:47 pm
Sun todaySunrise –Sunset –
Natural hazardsOverall risk Very LowSilver Bow County, MT, compared with all US countiesHigher-risk hazardsWinter weather Relatively HighSource: FEMA National Risk Index (county level)
Air quality85% of days had good air in 2025310 of 365 days measured55 moderate daysMedian index 28, worst day 96main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Silver Bow County monitors, MT
Drinking waterButte Silverbow Water Deptserves 33,000 people from surface waterNo health-based violations since 20213 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
