Daylight through the yearLongest day (Jun 21): 14 h 18 min6:20 am – 8:38 pmShortest day (Dec 21): 10 h 0 min7:25 am – 5:25 pm
Sun todaySunrise –Sunset –
ClimateWarmest month August: highs 97°F, lows 73°FColdest month January: highs 58°F, lows 33°F41 in of rain a year, on about 54 dayswettest month OctoberSnow is rare101 days above 90°F, 52 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Joe Pool Lake station, 4 mi away; snow from Midlothian
Nearby landmarksCedar Ridge Preservepark · 2.6 miDallas International Universitycollege · 3.1 miNorthwood Universitycollege · 3.7 miWhispering Cedarswoods · 3.8 miJoe Pool Lakelake · 5.2 miChalk Hillpeak · 7.8 miSource: USGS Geographic Names Information System
Parks and public landsLions Parkpark · under a mileArmstrong Parkpark · under a mileCedar Hill State Parkstate park · 4.1 mi · 1,891 acresJoe Pool Recreation Arearecreation area · 4.2 mi · 15,286 acresDesoto Ranch Parkstate park · 5.8 miDallas-Forth Worth National Cemeteryhistoric site · 5.3 mi · 410 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes35 of magnitude 3 or more within 50 miles since 19701 of magnitude 4+, 0 of magnitude 5+Largest: magnitude 4.0 on 7 May 201515 mi away, near Venus, TexasMost recent: magnitude 3.1 on 1 May 202418 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very HighDallas County, TX, compared with all US countiesHigher-risk hazardsHail Very HighHeat wave Very HighCold wave Very HighTornado Very HighSource: FEMA National Risk Index (county level)
Air quality41% of days had good air in 2025148 of 365 days measured206 moderate, 10 unhealthy for sensitive groups, 1 unhealthy daysMedian index 53, worst day 304main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, Dallas County monitors, TX
Drinking waterCity of Duncanvilleserves 39,413 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation671 ft205 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalSelect Specialty Hospital - South Dallas2.3 miPost officeDuncanville Post Office1.0 miTown hallDuncanville City Hallunder a milePoliceDuncanville Police Departmentunder a mileFire stationDuncanville Fire Department Station 2under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi17 schools8 elementary, 4 middle, 2 high, 3 otherSchoolVillage Tech Schoolsunder a mileElementaryMerrifield Elementary Schoolunder a mileElementaryAlexander Elementary Schoolunder a mileCollegeDallas International University3.1 miSource: USGS National Structures Dataset
Getting aroundAirportDallas Love Field DAL15 miInterstateI-202.1 miUS highwayUS 672.8 miAmtrakEddie Bernice Johnson Union Sta DAL12 miLight railWESTMORELAND STATIONDallas Area Rapid Transit (DART)6.3 miCoachDallas TX - Greyhound Station (DAG)FlixBus12 miSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 75138 ZIP area.