Climate & Weather in Arlington
Arlington shares the wider Dallas-Fort Worth region's humid subtropical climate: genuinely hot summers, mild-to-cool winters with occasional sharp cold snaps, and an active spring severe-weather season. Per DFW-area climate data, January averages a high around 56°F and low around 39°F, while July and August run hottest, averaging around 85-86°F with highs often in the mid-90s -- and the region sees an average of roughly 22 days a year at or above 100°F.
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Learn moreSummer: Genuinely Hot
Summers across the DFW region, including Arlington, are a sustained heat commitment: July and August average around 85-86°F with highs often in the mid-90s, and the region sees an average of roughly 22 days a year that reach 100°F or higher. Air conditioning is a non-optional utility cost for a large share of the year as a direct result (see the cost-of-living topic page), and this is a genuine adjustment for anyone relocating from a milder-summer climate.
Winter: Mild Overall, With Real Cold Snaps
January, the coldest month across the DFW region, averages a high around 56°F and a low around 39°F -- genuinely mild by most northern-U.S. standards. That said, the region is not immune to serious cold: Winter Storm Uri (February 2021) brought record-breaking cold and a statewide ERCOT grid failure across Texas, including the DFW metro -- a rare but real illustration that 'mild winters' does not mean 'no winter risk at all.'
Spring: Peak Severe Weather Season
Spring (roughly March through May) is when North Texas, including Arlington, sees the most severe thunderstorms, large hail, and tornadoes, as warm, moist Gulf air collides with cold, dry continental air -- the atmospheric setup responsible for both the tornado risk and the hail exposure that drives above-average homeowners insurance costs here (see the insurance-hazard-costs topic page). This is the single most weather-eventful season of the year in North Texas, worth planning around for outdoor events (including Arlington's Entertainment District venues), moving timelines, and home-maintenance scheduling alike.
What Arlington Doesn't Have: Hurricanes
Worth stating plainly: Arlington sits roughly 250 miles inland and does not experience hurricane landfalls or storm surge. Its real weather hazards are severe thunderstorms, tornadoes, hail, and (rarely) extreme winter cold -- a genuinely different risk profile than a Gulf Coast city, not a lesser or greater one, just different, and worth evaluating on its own terms.
Key takeaways
- January averages 56°F/39°F (high/low) across the DFW region; July/August average around 85-86°F with highs often in the mid-90s -- the region sees roughly 22 days a year at or above 100°F.
- Winters are mild overall but not risk-free -- Winter Storm Uri (Feb. 2021) brought record cold and a statewide ERCOT grid failure across Texas, including the DFW metro.
- Spring (March-May) is peak severe-thunderstorm, hail, and tornado season -- the single most weather-eventful season of the year in North Texas.
- Arlington does not experience hurricanes or storm surge -- its real hazard profile is severe thunderstorms, tornadoes, hail, and rarely extreme winter cold, a genuinely different risk set than a Gulf Coast city.
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