Blacksburg weather in July

In July, Blacksburg sees average daytime highs of 82°F and overnight lows near 64°F, with 2.8 in of rain across 12.5 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 82°F through the month. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 30 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Blacksburg's 6th-clearest and 11th-windiest month. For the whole year in context, see Blacksburg's year-round climate.

Daytime high
82°
1st warmest
Overnight low
64°
12th coldest
Rainfall
2.8 in
12.5 wet days
Daylight
14 h 18 min
5:17 AM – 7:37 PM
Cloud cover
61%
6th clearest
Wind
4 mph
11th windiest
Solar energy
5.88 kWh/m²
Travel score
6.0
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 July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 82°F through the month.

A typical July day in Blacksburg reaches about 82°F in the afternoon and slips back to 64°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 88°F. Set against its neighbours, July runs about 4°F warmer than June and on par with August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18163
28163
38163
48163
58163
68164
78264
88264
98264
108264
118264
128264
138264
148264
158264
168264
178264
188264
198264
208264
218264
228264
238264
248264
258264
268264
278264
288264
298264
308164
318164

How July really feels in Blacksburg

Once humidity and wind are folded in, July 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

July 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 July compares with the rest of the year at a glance. July is the 1st-warmest and 9th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44852
54852
64852
74852
84753
94753
104753
114753
124753
134753
144555
154555
164555
174555
184456
194456
204456
214456
224456
234456
244357
254456
264456
274456
284456
294555
304555
314555

Chance of precipitation in July

Any precipitation

Blacksburg gets around 2.8 in of rain over 12.5 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
437
537
637
737
837
938
1038
1138
1238
1338
1438
1538
1639
1739
1840
1940
2041
2141
2241
2342
2442
2542
2642
2742
2842
2942
3042
3141

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

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

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
19213931
29213832
39213833
49203833
58203834
68203735
78193735
88193736
98183736
108183737
118183737
127183738
137173738
147173739
157173739
167163740
177163740
186163741
196153742
206153742
216153742
226143742
236143742
246143842
256143842
266143841
276153841
286153940
296163939
306163939
317163938

Wind in July

Winds average 4 mph in July.

Across July, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 30 min at the start of July to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 5:09 AM to 5:29 AM, and sunset from 7:41 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:097:41
214.55:097:41
314.55:107:41
414.55:107:41
514.55:117:41
614.55:117:40
714.55:127:40
814.55:127:40
914.45:137:40
1014.45:147:39
1114.45:147:39
1214.45:157:39
1314.45:157:38
1414.45:167:38
1514.35:177:38
1614.35:177:37
1714.35:187:37
1814.35:197:36
1914.35:207:36
2014.25:207:35
2114.25:217:34
2214.25:227:34
2314.25:237:33
2414.15:237:32
2514.15:247:32
2614.15:257:31
2714.15:267:30
2814.05:267:29
2914.05:277:28
3014.05:287:27
3114.05:297:27

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.88 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 — July's 5.88 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Intense
146.0Bright
156.0Bright
165.9Bright
175.9Bright
185.9Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in July

Is July a good time to visit Blacksburg?

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

6.0
Sightseeing
6th-best month of the year
6.4
Beach & pool
2nd-best month of the year

July 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 July

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

In July, Blacksburg sees daytime highs around 82°F and nights near 64°F. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Blacksburg in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks 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 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 July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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
July 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).