Daylight through the yearLongest day (Jun 21): 15 h 0 min5:33 am – 8:33 pmShortest day (Dec 21): 9 h 20 min7:19 am – 4:39 pm
Sun todaySunrise –Sunset –
ClimateWarmest month July: highs 88°F, lows 70°FColdest month January: highs 41°F, lows 26°F44 in of rain a year, on about 73 dayswettest month September23 in of snow a year, on about 12 days30 days above 90°F, 77 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Philadelphia Intl Ap station, 6 mi away
Nearby landmarksRidley Park Lakelake · under a mileWidener Universitycollege · 1.7 miSwarthmore Collegecollege · 1.8 miThirteenth Avenue Lake (historical)lake · 1.2 mi420 Trailtrailhead · 1.9 miLong Pointcape · 2.8 miSource: USGS Geographic Names Information System
Parks and public landsJohn Heinz National Wildlife Refuge At Tinicumnational wildlife refuge · 2.6 mi · 1,011 acresEast Lake Parkpark · under a mileBlack Rock Parkpark · under a mileMorton Homestead State Parkstate historic site · 1.7 miMorton Homesteadstate historic site · 1.7 miTinicum Island Natural Areastate conservation land · 3.1 mi · 80 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes8 of magnitude 3 or more within 50 miles since 19703 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.6 on 16 Jan 199448 mi away, near Sinking Spring, PennsylvaniaMost recent: magnitude 4.1 on 30 Nov 201748 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively ModerateDelaware County, PA, compared with all US countiesHigher-risk hazardsWinter weather Very HighStrong wind Relatively HighHeat wave Relatively HighLightning Relatively HighSource: FEMA National Risk Index (county level)
Air quality65% of days had good air in 2025238 of 365 days measured124 moderate, 2 unhealthy for sensitive groups, 1 unhealthy daysMedian index 44, worst day 153main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Delaware County monitors, PA
Drinking waterChester Water Authorityserves 140,437 people from surface waterNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation105 ft32 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalKeystone Center1.7 miPost officeWoodlyn Post Officeunder a mileTown hallRidley Township Municipal Buildingunder a milePoliceRidley Township Police Departmentunder a mileFire stationMilmont Fire Company Station 49under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi24 schools10 elementary, 3 middle, 2 high, 9 otherSchoolMilagre Kids School South Campusright hereElementaryWoodlyn Elementary Schoolunder a mileMiddleRidley Middle Schoolunder a mileCollegeWidener University1.7 miSource: USGS National Structures Dataset
Getting aroundAirportPhiladelphia International Airport PHL5.1 miInterstateI-476under a mileUS highwayUS 131.2 miAmtrakArdmore, PA ARD9.1 miRailCrum LynneSoutheastern Pennsylvania Transportation Authority (SEPTA)under a mileCoachPhiladelphia International Airport (Departure Rd Terminal A west By The British Airways Sign. Pickup time is approximate, and may vary by 30 minutes. OurBus4.8 miTransit46 stops within a mileSoutheastern Pennsylvania Transportation Authority (SEPTA)Sources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 19039 ZIP area.
