Clarksburg in Summer
In summer (June, July and August), Clarksburg sees average daytime highs around 80°F and overnight lows near 63°F, with 15.1 in of rain over about 43 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Over the season highs climb from about 76°F in early June to 79°F by late August. The sky is clear or mostly clear about 26% of the time across summer, and the air most often feels muggy.
Summer is Clarksburg's best season of the year to visit on our travel score. For the whole year in context, see Clarksburg's year-round climate.
- Avg daytime high
- 80°F
- warmest season of the year
- Avg overnight low
- 63°F
- Rainfall
- 15.1 in
- 43 wet days
- Avg wind
- 5 mph
- Travel score
- 6.0
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Clarksburg in Summer
Over the season highs climb from about 76°F in early June to 79°F by late August.
A typical summer day in Clarksburg reaches about 80°F and drops to 63°F overnight. The warmest of the three months is July, the coolest June.
How summer really feels in Clarksburg
Once humidity and wind are folded in, summer brings about 0 days that feel above 90°F and 0 that feel at or below 32°F.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Clarksburg 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 | 40° / 26° | 4.1 | 13.6 | 7 | 9.6 | 0.0 |
| Feb | 43° / 28° | 3.9 | 12.3 | 5.6 | 10.5 | 0.5 |
| Mar | 53° / 35° | 4.8 | 14.5 | 3.8 | 11.7 | 2.6 |
| Apr | 64° / 45° | 4.8 | 14.4 | 0.9 | 13 | 5.0 |
| May | 71° / 53° | 5.6 | 15.5 | 0 | 14.1 | 5.7 |
| Jun | 78° / 61° | 5.3 | 14.5 | 0 | 14.7 | 6.0 |
| Jul | 81° / 65° | 5.6 | 15.9 | 0 | 14.5 | 5.7 |
| Aug | 80° / 63° | 4.2 | 12.1 | 0 | 13.5 | 6.2 |
| Sep | 75° / 57° | 4.1 | 10.7 | 0 | 12.3 | 6.8 |
| Oct | 64° / 46° | 3.7 | 10.5 | 0.2 | 11 | 5.7 |
| Nov | 53° / 37° | 3.7 | 10.7 | 1.7 | 9.8 | 3.0 |
| Dec | 44° / 30° | 4.2 | 12.9 | 4.8 | 9.3 | 0.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 26% of the time across summer.
Chance of precipitation in Summer
Clarksburg gets around 15.1 in of rain over 43 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 36 min in early June to 12 h 54 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 5.7 kWh/m².
Is summer a good time to visit Clarksburg?
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 Clarksburg for sightseeing.
What to pack for Clarksburg in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Clarksburg sees daytime highs around 80°F and nights near 63°F. Pack light clothes, rain gear and sun protection. About 43 days see rain.
UV index in Clarksburg 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 Clarksburg peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Clarksburg 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 Clarksburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 6 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) | 7 | 8 | 9 | 10 | 12 | 15 | 16 | 13 | 10 | 6 | 6 | 6 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 8 | Good |
| Mar | 9 | Good |
| Apr | 10 | Good |
| May | 12 | Moderate |
| Jun | 15 | Moderate |
| Jul | 16 | Moderate |
| Aug | 13 | Moderate |
| Sep | 10 | Good |
| Oct | 6 | Good |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Clarksburg?
Clarksburg sits at 39.3°N, 80.3°W, 994 ft above sea level, in United States. The nearest listed city is Fairmont, 18 mi away.
Topography around Clarksburg
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Clarksburg.
Within 2 miles, the terrain around Clarksburg has only modest variations in elevation — a maximum elevation change of 604 ft around an average of 1,109 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 991 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,661 ft.
The land around Clarksburg is covered by trees (69%) within 2 miles, trees (77%) and grassland (20%) within 10 miles, and trees (90%) 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 Clarksburg (39.2807°, -80.3445°, elevation 994 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.