Blacksburg weather in August

In August, Blacksburg sees average daytime highs of 81°F and overnight lows near 63°F, with 2.5 in of rain across 10.4 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 81°F through the month. The sky is clear or mostly clear about 26% of the time in August, and the air most often feels humid.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Blacksburg's 4th-clearest and 12th-windiest month. For the whole year in context, see Blacksburg's year-round climate.

Daytime high
81°
2nd warmest
Overnight low
63°
11th coldest
Rainfall
2.5 in
10.4 wet days
Daylight
13 h 24 min
5:43 AM – 7:09 PM
Cloud cover
59%
4th clearest
Wind
4 mph
12th windiest
Solar energy
5.27 kWh/m²
Travel score
6.4
out of 10

Blacksburg is town in Virginia, United States.

Density
857/km²
people per km²
Founded
1798

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 81°F through the month.

A typical August day in Blacksburg reaches about 81°F in the afternoon and slips back to 63°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 73°F and 87°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18164
28164
38164
48164
58164
68164
78164
88164
98163
108163
118163
128163
138163
148163
158163
168163
178163
188163
198163
208163
218162
228062
238062
248062
258062
268062
278062
288062
298061
308061
317961

How August really feels in Blacksburg

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Blacksburg weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan42° / 26°3.19.239.70.4
Feb46° / 28°2.98.83.210.61.2
Mar54° / 35°3.8112.311.73.2
Apr64° / 44°3.110.70.412.95.6
May71° / 52°3.311.80146.2
Jun78° / 60°3.011.8014.56.4
Jul82° / 64°2.812.5014.36.0
Aug81° / 63°2.510.4013.46.4
Sep75° / 56°3.18.5012.37.1
Oct65° / 45°2.67.20.2116.2
Nov54° / 35°2.67.50.4103.5
Dec45° / 30°3.18.52.39.51.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54753
64753
74753
84951
94951
104951
115050
125050
135050
145050
155149
165149
175347
185347
195347
205347
215347
225347
235347
245347
255347
265248
275248
285248
295248
305248
315248

Chance of precipitation in August

Any precipitation

Blacksburg gets around 2.5 in of rain over 10.4 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
340
440
539
639
738
838
937
1037
1137
1236
1335
1435
1534
1634
1733
1832
1932
2031
2131
2231
2330
2430
2530
2630
2730
2830
2930
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the humid band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 30% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
17173837
27173837
37183837
48183737
58193736
68193636
78203636
88203536
98213536
108213536
118213535
128223535
138223634
148223633
158223732
169223831
179233930
189234029
199234027
209234127
219234226
229234225
2310244224
2410244224
2510244124
2611254123
2712254023
2813263923
2914263822
3015273622
3116273521

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:30 AM to 5:55 AM, and sunset from 7:26 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:307:26
213.95:317:25
313.95:317:24
413.85:327:23
513.85:337:22
613.85:347:21
713.75:357:20
813.75:367:19
913.75:377:17
1013.65:377:16
1113.65:387:15
1213.65:397:14
1313.55:407:13
1413.55:417:11
1513.55:427:10
1613.45:437:09
1713.45:437:08
1813.45:447:06
1913.35:457:05
2013.35:467:04
2113.35:477:02
2213.25:487:01
2313.25:497:00
2413.15:496:58
2513.15:506:57
2613.15:516:55
2713.05:526:54
2813.05:536:52
2913.05:546:51
3012.95:556:49
3112.95:556:48

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.27 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 6.05 kWh/m² in June across the year — August's 5.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
314.9Bright
Planning a trip in August

Is August a good time to visit Blacksburg?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
2nd-best month of the year
6.5
Beach & pool
1st-best month of the year

August is a reasonable time to visit Blacksburg for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Blacksburg in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Blacksburg sees daytime highs around 81°F and nights near 63°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Blacksburg in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Blacksburg peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 13UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Blacksburg in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Blacksburg is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1416 µg/m³Dec 126 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr10Good
May13Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Blacksburg?

Blacksburg sits at 37.2°N, 80.4°W, 2,077 ft above sea level, in United States. The nearest listed city is Christiansburg, 6.8 mi away.

Topography around Blacksburg

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Blacksburg.

Within 2 miles, the terrain around Blacksburg has only modest variations in elevation — a maximum elevation change of 558 ft around an average of 2,119 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,592 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,678 ft.

The land around Blacksburg is covered by trees (52%), grassland (26%) and artificial surfaces (20%) within 2 miles, trees (75%) and grassland (21%) within 10 miles, and trees (81%) within 50 miles.

2 miles
558 ft
10 miles
2,592 ft
50 miles
3,678 ft
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Christiansburg 6.8 mi · Radford 11 mi · Salem 21 mi · Cave Spring 22 mi · Roanoke 26 mi · Beckley 57 mi · Eden 63 mi · West Lynchburg 69 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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 Blacksburg (37.2296°, -80.4139°, elevation 2,077 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).