Flower Mound Climate by Month
Flower Mound, Texas, United States
Very hot summers and cool winters, with rain spread through the year.
Flower Mound has very hot summers and cool winters, with rain spread through the year. Expect highs of 95°F (35°C) in August and 56°F (13°C) in January, with the coldest nights (January) near 35°F (2°C). About 36 in (905 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 95°F(35°C)
- Average high, August
- Coldest nights
- 35°F(2°C)
- Average low, January
- Rain per year
- 36 in(905 mm)
- No clear rainy season
- Humidity
- 64%
- Sunniest: July
Best and worst months in Flower Mound
Best for weatherApril is the best time for weather in Flower Mound: highs near 76°F (24°C) and about 3.3 in (85 mm) of rain a month.
Least pleasantJuly and August are the least pleasant; August is the hottest, with highs of 95°F (35°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Flower Mound weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 56°F(13°C) | 35°F(2°C) | 2.2 in(55 mm) | 68% | 2.6 |
| FebFebruary | 60°F(16°C) | 38°F(4°C) | 2.4 in(61 mm) | 67% | 3.3 |
| MarMarch | 68°F(20°C) | 46°F(8°C) | 3.0 in(75 mm) | 64% | 4.1 |
| AprAprilBest | 76°F(24°C) | 53°F(12°C) | 3.3 in(85 mm) | 63% | 5.3 |
| MayMay | 83°F(28°C) | 62°F(17°C) | 4.7 in(120 mm) | 69% | 5.7 |
| JunJune | 90°F(32°C) | 70°F(21°C) | 3.6 in(92 mm) | 68% | 6.5 |
| JulJuly | 95°F(35°C) | 74°F(23°C) | 2.3 in(58 mm) | 59% | 7.0 |
| AugAugust | 95°F(35°C) | 74°F(23°C) | 2.3 in(59 mm) | 57% | 6.3 |
| SepSeptember | 88°F(31°C) | 66°F(19°C) | 3.5 in(90 mm) | 60% | 5.1 |
| OctOctober | 78°F(26°C) | 55°F(13°C) | 3.6 in(92 mm) | 63% | 3.9 |
| NovNovember | 66°F(19°C) | 45°F(7°C) | 2.4 in(61 mm) | 67% | 2.8 |
| DecDecember | 57°F(14°C) | 37°F(3°C) | 2.2 in(57 mm) | 64% | 2.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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