Flower Mound in Fall
In fall (September, October and November), Flower Mound sees average daytime highs around 77°F and overnight lows near 58°F, with 10.1 in of rain over about 20 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 91°F in early September to 62°F by late November. The sky is clear or mostly clear about 53% of the time across fall, and the air most often feels dry.
Fall is Flower Mound's 2nd-best season to visit on our travel score. For the whole year in context, see Flower Mound's year-round climate.
- Avg daytime high
- 77°F
- 2nd-warmest season
- Avg overnight low
- 58°F
- Rainfall
- 10.1 in
- 20 wet days
- Avg wind
- 8 mph
- Travel score
- 6.5
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Flower Mound in Fall
Over the season highs ease from about 91°F in early September to 62°F by late November.
A typical fall day in Flower Mound reaches about 77°F and drops to 58°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Flower Mound
Once humidity and wind are folded in, fall brings about 12 days that feel above 90°F and 0 that feel at or below 32°F.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Flower Mound weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 56° / 38° | 2.7 | 6.9 | 0.5 | 10.1 | 4.1 |
| Feb | 60° / 41° | 2.7 | 7.1 | 0.6 | 10.8 | 5.2 |
| Mar | 67° / 49° | 3.7 | 8.9 | 0.2 | 11.7 | 6.5 |
| Apr | 75° / 56° | 4.1 | 8.2 | 0 | 12.8 | 7.2 |
| May | 82° / 65° | 5.2 | 10.9 | 0 | 13.7 | 6.0 |
| Jun | 90° / 73° | 3.2 | 7.7 | 0 | 14.1 | 4.3 |
| Jul | 94° / 76° | 1.8 | 5.4 | 0 | 14 | 3.2 |
| Aug | 94° / 76° | 2.0 | 5.2 | 0 | 13.2 | 3.3 |
| Sep | 87° / 69° | 2.8 | 6.1 | 0 | 12.2 | 5.3 |
| Oct | 77° / 58° | 3.8 | 7.5 | 0 | 11.2 | 7.4 |
| Nov | 66° / 47° | 3.5 | 6.8 | 0.1 | 10.3 | 6.7 |
| Dec | 57° / 40° | 3.4 | 6.9 | 0.3 | 9.9 | 4.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 53% of the time across fall.
Chance of precipitation in Fall
Flower Mound gets around 10.1 in of rain over 20 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early September to 10 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.1 kWh/m².
Hazard calendar for Flower Mound
In fall, Flower Mound overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Flower Mound sits in the Atlantic hurricane belt; the season peaks August–October.
Is fall a good time to visit Flower Mound?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Flower Mound for sightseeing.
What to pack for Flower Mound in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Flower Mound sees daytime highs around 77°F and nights near 58°F. Pack light clothes. Worth having: sun protection. About 20 days see rain.
UV index in Flower Mound in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Flower Mound peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 9 | 9 | 10 | 10 | 10 | 7 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 7 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Flower Mound in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Flower Mound is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (October, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 8 | 10 | 11 | 14 | 16 | 19 | 15 | 11 | 8 | 8 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 8 | Good |
| Mar | 10 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 19 | Moderate |
| Aug | 15 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is Flower Mound?
Flower Mound sits at 33.0°N, 97.1°W, 604 ft above sea level, in United States. The nearest listed city is Southlake, 5.6 mi away.
Topography around Flower Mound
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Flower Mound.
Within 2 miles, the terrain around Flower Mound has only modest variations in elevation — a maximum elevation change of 157 ft around an average of 597 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 387 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,043 ft.
The land around Flower Mound is covered by trees (37%), artificial surfaces (25%) and water (21%) within 2 miles, trees (32%), artificial surfaces (31%) and grassland (25%) within 10 miles, and grassland (49%) and trees (25%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Flower Mound (33.0146°, -97.097°, elevation 604 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.