Daylight through the yearLongest day (Jun 21): 14 h 19 min6:20 am – 8:39 pmShortest day (Dec 21): 9 h 59 min7:26 am – 5:25 pm
Sun todaySunrise –Sunset –
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 Irvingserves 264,546 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
