Dallas in Summer
In summer (June, July and August), Dallas sees average daytime highs around 93°F and overnight lows near 75°F, with 6.9 in of rain over about 20 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 88°F in early June to 93°F by late August. The sky is clear or mostly clear about 53% of the time across summer, and the air most often feels muggy.
Summer is Dallas's weakest season of the year to visit on our travel score. For the whole year in context, see Dallas's year-round climate.
- Avg daytime high
- 93°F
- warmest season of the year
- Avg overnight low
- 75°F
- Rainfall
- 6.9 in
- 20 wet days
- Avg wind
- 7 mph
- Travel score
- 3.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Dallas in Summer
Over the season highs climb from about 88°F in early June to 93°F by late August.
A typical summer day in Dallas reaches about 93°F and drops to 75°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Dallas
Once humidity and wind are folded in, summer brings about 92 days that feel above 90°F and 0 that feel at or below 32°F.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Dallas weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 57° / 38° | 2.8 | 7.1 | 10.1 | 4.3 |
| Feb | 61° / 42° | 3.0 | 7.7 | 10.8 | 5.2 |
| Mar | 68° / 49° | 3.9 | 9.5 | 11.8 | 6.4 |
| Apr | 75° / 56° | 4.2 | 8.8 | 12.8 | 7.1 |
| May | 83° / 65° | 5.0 | 10.7 | 13.7 | 5.9 |
| Jun | 90° / 73° | 3.3 | 8.4 | 14.1 | 4.1 |
| Jul | 94° / 76° | 1.6 | 5.8 | 13.9 | 3.0 |
| Aug | 94° / 76° | 2.1 | 5.4 | 13.2 | 3.1 |
| Sep | 88° / 69° | 2.5 | 5.9 | 12.2 | 5.1 |
| Oct | 78° / 58° | 3.8 | 7.7 | 11.2 | 7.3 |
| Nov | 67° / 48° | 3.5 | 7.2 | 10.3 | 6.7 |
| Dec | 58° / 40° | 3.5 | 7 | 9.9 | 4.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 53% of the time across summer.
Chance of precipitation in Summer
Dallas gets around 6.9 in of rain over 20 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 hours in early June to 12 h 42 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.5 kWh/m².
Is summer a good time to visit Dallas?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Dallas. The water and warmth also suit a beach or pool day.
What to pack for Dallas in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Dallas sees daytime highs around 93°F and nights near 75°F. Pack light clothes and sun protection. Worth having: rain gear. About 20 days see rain.
UV index in Dallas in Summer
Clear-sky midday UV across summer averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Dallas peaks around July 17 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 — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 9 | 10 | 10 | 10 | 10 | 8 | 6 | 5 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 9 | Very high |
| May | 10 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 3 | Moderate |
Air quality in Dallas in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Dallas 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 Dallas?
Dallas sits at 32.8°N, 96.8°W, 420 ft above sea level, in United States. The nearest listed city is University Park, 4.3 mi away.
Topography around Dallas
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Dallas.
Within 2 miles, the terrain around Dallas has only modest variations in elevation — a maximum elevation change of 154 ft around an average of 440 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 407 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 860 ft.
The land around Dallas is covered by artificial surfaces (71%) within 2 miles, artificial surfaces (45%) and trees (39%) within 10 miles, and grassland (48%) and trees (24%) 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 Dallas (32.7831°, -96.8067°, elevation 420 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.