Daylight through the yearLongest day (Jun 21): 15 h 19 min5:31 am – 8:50 pmShortest day (Dec 21): 9 h 3 min7:35 am – 4:39 pm
Sun todaySunrise –Sunset –
Natural hazardsOverall risk Relatively LowBlack Hawk County, IA, compared with all US countiesHigher-risk hazardsDrought Relatively HighStrong wind Relatively HighWinter weather Relatively HighTornado Relatively HighSource: FEMA National Risk Index (county level)
Air quality53% of days had good air in 2025195 of 365 days measured168 moderate, 1 unhealthy for sensitive groups, 1 unhealthy daysMedian index 49, worst day 158main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Black Hawk County monitors, IA
Drinking waterWaterloo Water Worksserves 69,504 people from ground waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
