Duncanville, TX Weather & Climate Normals
What a normal year in Duncanville actually looks like
On the 30-year record NOAA keeps for Duncanville, TX, the comfort score comes out to 52/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Duncanville's weather actually swings
Average temperatures in Duncanville run from 46°F in Jan up to 85°F in Aug, a 39.2°F seasonal swing, a middling gap by national standards.
Duncanville, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 58°F | 33°F | 2.73in |
| Feb | 62°F | 38°F | 2.95in |
| Mar | 69°F | 45°F | 3.8in |
| Apr | 77°F | 53°F | 3.66in |
| May | 84°F | 61°F | 4.7in |
| Jun | 92°F | 69°F | 4.24in |
| Jul | 96°F | 73°F | 2.33in |
| Aug | 97°F | 73°F | 2.37in |
| Sep | 90°F | 66°F | 3.12in |
| Oct | 80°F | 54°F | 4.96in |
| Nov | 68°F | 45°F | 3.17in |
| Dec | 60°F | 35°F | 3.03in |
If you're timing a visit, Mar, Apr, May, Oct, and Nov are Duncanville's mildest stretch; if you're moving there, you should plan around Aug's heat and Jan's cold instead.
How wet Duncanville actually gets
Duncanville averages 41.06in of precipitation a year across roughly 78 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Duncanville against the rest of the country
Out of 4876 cities scored here, Duncanville comes in at 1232; within TX alone it ranks 219 of 384. Population is about 39,203.
Checking the actual forecast
These figures come from Joe Pool Lake, TX US, the NOAA station 3.6 miles from Duncanville, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is