Key facts: Dallas
Clay soil and slab leaks
North Texas clay shrinks and swells, which stresses slabs and buried lines. A warm floor spot or unexplained bill may point to a slab leak.
Hard freezes
In February 2021, North Texas spent days below freezing.[2] Attic and exterior wall lines were exposed, so learn your shutoff before the next cold front.
Flood claims recorded in Dallas County
Dallas sits in Dallas County. FEMA publishes every National Flood Insurance Program claim with personal details removed, which gives a plain record of where water has reached insured buildings here.
| Measure | Count |
|---|---|
| Flood insurance claims on record | 3,457 |
| Year with the most claims | 1991 (344) |
| Largest named event | Flooding (542) |
| Claims outside high-risk A and V zones | 39% |
| Claims on buildings built before 1975 | 68% |
County-wide counts of insured claims only. Uninsured losses, burst pipes and appliance leaks are not in this data.
What the Dallas claim record shows
For Dallas homes, the local precedents are the events behind the most Dallas County claims: Flooding (542 claims), Early Summer Storms (212 claims) and Dallas Flash Floods (88 claims).
About 39% of claims with a recorded zone came from outside the high-risk A and V zones, so a moderate-risk label does not mean a Dallas home stays dry.
If your Dallas home is older, note that buildings from before 1975 make up 68% of county claims with a known build date. Many predate current flood maps, so inspect low outlets, ductwork and subfloors closely after any water event.
Federal disaster history for Dallas County
FEMA lists 28 federal declarations covering Dallas County. The most common types are hurricane (8), severe storm (6) and flood (4). The latest are Severe Storms, Straight-Line Winds, Tornadoes, and Flooding in 2024, Severe Winter Storms in 2021 and Severe Winter Storm in 2021. If your loss falls inside an open declaration, Dallas homeowners can check DisasterAssistance.gov as well as their insurance policy.
Dallas weather and your home
Weather records for Dallas from 2015 through 2024 average 55 inches of precipitation a year, and May and April are the wettest months. The area averages 15.1 days a year with an inch or more.
Frost reaches Dallas on about 18 nights a year, but hard freezes are less common, which can leave pipes in attics and outer walls poorly protected in a cold snap.
With about 90 days a year at 90°F or hotter, Dallas air conditioners run hard, and a clogged condensate line can soak a ceiling without warning.
At 15 heavy-rain days a year, clear gutters matter in Dallas, and doors and low windows are worth watching.
When rain falls in Dallas
Seasonal averages for Dallas, 2015 through 2024. Plan roof, gutter and sump pump checks before the wettest stretch.
| Season | Average | Share of year |
|---|---|---|
| January to March | 11.5 in | 21% |
| April to June | 18.8 in | 34% |
| July to September | 10.8 in | 20% |
| October to December | 14.0 in | 25% |
Modeled from Open-Meteo historical weather data. Precipitation includes rain and melted snow.
Dallas home checklist from these records
- Don't rely on recent quiet years. Only 23% of Dallas County claims date from 2015 or later, so older floods still show what can happen.
- Test any sump pump before May, since Dallas averages 15 days a year with an inch or more.
- Clear the air conditioner drain line before the 90 days of 90°F heat begin.
- Keep dated photos of each room. After Flooding, 542 insured Dallas County owners filed claims at about the same time.
What to tell the Dallas contractor
- Whether the floor feels warm
- Whether a creek is near
- Whether pipes run in the attic
Services Dallas callers ask about
Questions
Dallas water damage questions
Does Dallas really flood?
Yes. Creeks and low streets can fill fast in intense rain.
Is a slab leak covered?
It varies, so read your policy and call your agent.