Daylight through the yearLongest day (Jun 21): 15 h 2 min5:30 am – 8:32 pmShortest day (Dec 21): 9 h 19 min7:18 am – 4:37 pm
Sun todaySunrise –Sunset –
Natural hazardsOverall risk Very HighPhiladelphia County, PA, compared with all US countiesHigher-risk hazardsHeat wave Very HighCold wave Very HighWinter weather Very HighRiver flooding Very HighSource: FEMA National Risk Index (county level)
Air quality50% of days had good air in 2025184 of 365 days measured173 moderate, 8 unhealthy for sensitive groups daysMedian index 50, worst day 147main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Philadelphia County monitors, PA
Drinking waterPhiladelphia Water Departmentserves 1,600,000 people from surface waterNo health-based violations since 20215 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
