Rock Hill in Summer
In summer (June, July and August), Rock Hill sees average daytime highs around 88°F and overnight lows near 70°F, with 11.4 in of rain over about 37 wet days across the season. It is the warmest season of the year and the wettest season of the year.
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 Rock Hill's 3rd-best season to visit on our travel score. For the whole year in context, see Rock Hill's year-round climate.
- Avg daytime high
- 88°F
- warmest season of the year
- Avg overnight low
- 70°F
- Rainfall
- 11.4 in
- 37 wet days
- Avg wind
- 5 mph
- Travel score
- 4.2
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Rock Hill in Summer
Across summer, daytime highs hold fairly steady around 88°F.
A typical summer day in Rock Hill 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 Rock Hill
Once humidity and wind are folded in, summer brings about 69 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.
Rock Hill 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 | 52° / 34° | 3.8 | 9.5 | 1 | 9.9 | 2.9 |
| Feb | 56° / 37° | 3.4 | 8.8 | 0.7 | 10.7 | 3.8 |
| Mar | 64° / 43° | 4.2 | 9.9 | 0.3 | 11.7 | 5.7 |
| Apr | 73° / 52° | 3.5 | 8.7 | 0 | 12.9 | 7.0 |
| May | 80° / 60° | 2.9 | 9.6 | 0 | 13.8 | 6.5 |
| Jun | 87° / 68° | 3.8 | 11.8 | 0 | 14.3 | 4.5 |
| Jul | 90° / 72° | 3.7 | 13.5 | 0 | 14.1 | 3.6 |
| Aug | 88° / 71° | 4.0 | 11.5 | 0 | 13.3 | 4.4 |
| Sep | 82° / 64° | 3.7 | 8.4 | 0 | 12.2 | 6.3 |
| Oct | 72° / 53° | 3.3 | 6.9 | 0 | 11.1 | 7.4 |
| Nov | 62° / 42° | 3.2 | 7.5 | 0.1 | 10.2 | 5.8 |
| Dec | 54° / 37° | 3.8 | 9.1 | 0.5 | 9.7 | 3.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Rock Hill gets around 11.4 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.
Is summer a good time to visit Rock Hill?
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 Rock Hill for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Rock Hill in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Rock Hill 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 Rock Hill 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 Rock Hill peaks around July 12 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 | 4 | 6 | 7 | 8 | 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 | 8 | 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 Rock Hill 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 Rock Hill 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 Rock Hill?
Rock Hill sits at 34.9°N, 81.0°W, 679 ft above sea level, in United States. The nearest listed city is Matthews, 22 mi away.
Topography around Rock Hill
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Rock Hill.
Within 2 miles, the terrain around Rock Hill has only modest variations in elevation — a maximum elevation change of 167 ft around an average of 643 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 486 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,421 ft.
The land around Rock Hill is covered by trees (62%) and artificial surfaces (22%) within 2 miles, trees (68%) and grassland (20%) within 10 miles, and trees (77%) 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 Rock Hill (34.9249°, -81.0251°, elevation 679 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.