Cornelius in Summer
In summer (June, July and August), Cornelius sees average daytime highs around 88°F and overnight lows near 70°F, with 10.4 in of rain over about 37 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 88°F. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels muggy.
Summer is Cornelius's 3rd-best season to visit on our travel score. For the whole year in context, see Cornelius's year-round climate.
- Avg daytime high
- 88°F
- warmest season of the year
- Avg overnight low
- 70°F
- Rainfall
- 10.4 in
- 37 wet days
- Avg wind
- 5 mph
- Travel score
- 4.3
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Cornelius in Summer
Across summer, daytime highs hold fairly steady around 88°F.
A typical summer day in Cornelius reaches about 88°F and drops to 70°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Cornelius
Once humidity and wind are folded in, summer brings about 58 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.
Cornelius 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 | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 50° / 33° | 3.6 | 9.6 | 1.2 | 9.9 | 2.5 |
| Feb | 54° / 36° | 3.3 | 8.7 | 1.1 | 10.7 | 3.4 |
| Mar | 62° / 42° | 4.2 | 10 | 0.5 | 11.7 | 5.4 |
| Apr | 71° / 51° | 3.5 | 8.8 | 0 | 12.9 | 6.8 |
| May | 79° / 60° | 3.0 | 10.2 | 0 | 13.8 | 6.5 |
| Jun | 86° / 68° | 3.5 | 12.2 | 0 | 14.4 | 4.6 |
| Jul | 89° / 71° | 3.5 | 13.4 | 0 | 14.2 | 3.8 |
| Aug | 87° / 70° | 3.4 | 11.5 | 0 | 13.3 | 4.5 |
| Sep | 81° / 64° | 3.7 | 9.2 | 0 | 12.2 | 6.4 |
| Oct | 71° / 52° | 3.3 | 7 | 0 | 11.1 | 7.2 |
| Nov | 61° / 41° | 3.3 | 7.5 | 0.1 | 10.1 | 5.5 |
| Dec | 53° / 36° | 3.7 | 9 | 0.5 | 9.6 | 3.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Cornelius gets around 10.4 in of rain over 37 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 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 12 min in early June to 12 h 48 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 5.9 kWh/m².
Hazard calendar for Cornelius
In summer, Cornelius overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Cornelius sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Cornelius?
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 reasonable time to visit Cornelius for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cornelius in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Cornelius sees daytime highs around 88°F and nights near 70°F. Pack light clothes and sun protection. Worth having: rain gear. About 37 days see rain.
UV index in Cornelius in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cornelius peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 6 | 7 | 7 | 9 | 9 | 8 | 7 | 5 | 4 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | High |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Cornelius 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 Cornelius is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 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) | 9 | 11 | 12 | 12 | 14 | 17 | 19 | 17 | 13 | 10 | 9 | 9 |
| Level | Good | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 11 | Good |
| Mar | 12 | Moderate |
| Apr | 12 | Good |
| May | 14 | Moderate |
| Jun | 17 | Moderate |
| Jul | 19 | Moderate |
| Aug | 17 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is Cornelius?
Cornelius sits at 35.5°N, 80.9°W, 804 ft above sea level, in United States. The nearest listed city is Huntersville, 5.6 mi away.
Topography around Cornelius
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Cornelius.
Within 2 miles, the terrain around Cornelius has only modest variations in elevation — a maximum elevation change of 194 ft around an average of 787 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 509 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,723 ft.
The land around Cornelius is covered by trees (61%) within 2 miles, trees (60%) within 10 miles, and trees (72%) 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 Cornelius (35.4868°, -80.8601°, elevation 804 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.